Implementation Guide
TI Common
Version 1.5.0-ballot.1 - ballot

Ressourcenprofil: TI Appendix Document Reference - Detaillierte Beschreibungen

Active Stand: 2026-11-16

Definitionen für das ti-appendix-document-reference ressourcenprofil

Guidance on how to interpret the contents of this table can be foundhere

0. DocumentReference
Definition

Hier wird ein Dokumentanhang abgebildet.


A reference to a document of any kind for any purpose. Provides metadata about the document so that the document can be discovered and managed. The scope of a document is any seralized object with a mime-type, so includes formal patient centric documents (CDA), cliical notes, scanned paper, and non-patient specific documents like policy text.

ShortA reference to a document
Comments

Usually, this is used for documents other than those defined by FHIR.

Control0..*
Is Modifierfalse
Summaryfalse
Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
2. DocumentReference.meta
Definition

The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

ShortMetadata about the resource
Control0..1
This element is affected by the following invariants: ele-1
TypeMeta
Is Modifierfalse
Must Supporttrue
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. DocumentReference.meta.versionId
Definition

The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted.

ShortVersion specific identifier
Comments

The server assigns this value, and ignores what the client specifies, except in the case that the server is imposing version integrity on updates/deletes.

Control0..1
Typeid
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
6. DocumentReference.meta.lastUpdated
Definition

When the resource last changed - e.g. when the version changed.

ShortWhen the resource version last changed
Comments

This value is always populated except when the resource is first being created. The server / resource manager sets this value; what a client provides is irrelevant. This is equivalent to the HTTP Last-Modified and SHOULD have the same value on a read interaction.

Control0..1
Typeinstant
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
8. DocumentReference.implicitRules
Definition

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

ShortA set of rules under which this content was created
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

Control0..1
Typeuri
Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
10. DocumentReference.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
This element is affected by the following invariants: ele-1
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
Summaryfalse
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on DocumentReference.modifierExtension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 12. DocumentReference.masterIdentifier
    Definition

    Document identifier as assigned by the source of the document. This identifier is specific to this version of the document. This unique identifier may be used elsewhere to identify this version of the document.

    ShortMaster Version Specific Identifier
    Comments

    CDA Document Id extension and root.

    Control0..1
    This element is affected by the following invariants: ele-1
    TypeIdentifier
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Requirements

    The structure and format of this Id shall be consistent with the specification corresponding to the formatCode attribute. (e.g. for a DICOM standard document a 64-character numeric UID, for an HL7 CDA format a serialization of the CDA Document Id extension and root in the form "oid^extension", where OID is a 64 digits max, and the Id is a 16 UTF-8 char max. If the OID is coded without the extension then the '^' character shall not be included.).

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    14. DocumentReference.status
    Definition

    Hier wird der Status des Anhanges angegeben.


    The status of this document reference.

    Shortcurrent | superseded | entered-in-error
    Comments

    This is the status of the DocumentReference object, which might be independent from the docStatus element.

    This element is labeled as a modifier because the status contains the codes that mark the document or reference as not currently valid.

    Control1..1
    BindingThe codes SHALL be taken from DocumentReferenceStatushttp://hl7.org/fhir/ValueSet/document-reference-status|4.0.1
    (required to http://hl7.org/fhir/ValueSet/document-reference-status|4.0.1)

    The status of the document reference.

    Typecode
    Is Modifiertrue because This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    16. DocumentReference.type
    Definition

    In diesem Element werden Angaben zum Typ des Dokuments gemacht. Diese werden als codierte Information und/oder als Freitext angegeben.


    Specifies the particular kind of document referenced (e.g. History and Physical, Discharge Summary, Progress Note). This usually equates to the purpose of making the document referenced.

    ShortKind of document (LOINC if possible)
    Comments

    Key metadata element describing the document that describes he exact type of document. Helps humans to assess whether the document is of interest when viewing a list of documents.

    Control0..1
    This element is affected by the following invariants: ele-1
    BindingThe codes SHOULD be taken from DocumentTypeValueSethttp://hl7.org/fhir/ValueSet/c80-doc-typecodes|4.0.1
    (preferred to http://hl7.org/fhir/ValueSet/c80-doc-typecodes|4.0.1)

    Precise type of clinical document.

    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    18. DocumentReference.type.coding
    Definition

    Hier wird ein Code aus einem geeigneten Code-System angegeben.


    A reference to a code defined by a terminology system.

    ShortCode defined by a terminology system
    Comments

    Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

    Control0..*
    This element is affected by the following invariants: ele-1
    TypeCoding
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Requirements

    Allows for alternative encodings within a code system, and translations to other code systems.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    SlicingThis element introduces a set of slices on DocumentReference.type.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ $this
    • 20. DocumentReference.type.coding:xds
      Slice Namexds
      Definition

      Hier wird der Dokumenttyp gem. IHE-De-Terminologie in codierter Form angeben.


      A reference to a code defined by a terminology system.

      ShortCode defined by a terminology system
      Comments

      Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

      Control0..1*
      This element is affected by the following invariants: ele-1
      BindingThe codes SHALL be taken from For codes, see https://gematik.de/fhir/terminology/ValueSet/epa-xds-type-code-vs
      (required to https://gematik.de/fhir/terminology/ValueSet/epa-xds-type-code-vs)
      TypeCoding
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      Allows for alternative encodings within a code system, and translations to other code systems.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      22. DocumentReference.type.coding:xds.system
      Definition

      The identification of the code system that defines the meaning of the symbol in the code.

      ShortIdentity of the terminology system
      Comments

      The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

      Control10..1
      Typeuri
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Requirements

      Need to be unambiguous about the source of the definition of the symbol.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      24. DocumentReference.type.coding:xds.version
      Definition

      The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

      ShortVersion of the system - if relevant
      Comments

      Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

      NoteThis is a business version Id, not a resource version Id (see discussion)
      Control0..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      26. DocumentReference.type.coding:xds.code
      Definition

      A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

      ShortSymbol in syntax defined by the system
      Control10..1
      Typecode
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Requirements

      Need to refer to a particular code in the system.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      28. DocumentReference.type.coding:xds.display
      Definition

      A representation of the meaning of the code in the system, following the rules of the system.

      ShortRepresentation defined by the system
      Comments

      Note that FHIR strings SHALL NOT exceed 1MB in size

      Control10..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Requirements

      Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      30. DocumentReference.type.text
      Definition

      Hier wird ein Freitext eingetragen.


      A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

      ShortPlain text representation of the concept
      Comments

      Very often the text is the same as a displayName of one of the codings.

      Control0..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Requirements

      The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      32. DocumentReference.category
      Definition

      In diesem Element werden Angaben zur Kategorie des Dokuments gemacht. Diese werden als codierte Information und/oder als Freitext angegeben.


      A categorization for the type of document referenced - helps for indexing and searching. This may be implied by or derived from the code specified in the DocumentReference.type.

      ShortCategorization of document
      Comments

      Key metadata element describing the the category or classification of the document. This is a broader perspective that groups similar documents based on how they would be used. This is a primary key used in searching.

      Control0..*
      This element is affected by the following invariants: ele-1
      BindingFor example codes, see DocumentClassValueSethttp://hl7.org/fhir/ValueSet/document-classcodes|4.0.1
      (example to http://hl7.org/fhir/ValueSet/document-classcodes|4.0.1)

      High-level kind of a clinical document at a macro level.

      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Alternate Namesclaxs
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      34. DocumentReference.category.coding
      Definition

      Hier wird ein Code aus einem geeigneten Code-System angegeben.


      A reference to a code defined by a terminology system.

      ShortCode defined by a terminology system
      Comments

      Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

      Control0..*
      This element is affected by the following invariants: ele-1
      TypeCoding
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      Allows for alternative encodings within a code system, and translations to other code systems.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      SlicingThis element introduces a set of slices on DocumentReference.category.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ $this
      • 36. DocumentReference.category.coding:xds
        Slice Namexds
        Definition

        Hier wird die Kategorie des Dokuments gem. IHE-De-Terminologie in codierter Form angeben.


        A reference to a code defined by a terminology system.

        ShortCode defined by a terminology system
        Comments

        Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

        Control0..1*
        This element is affected by the following invariants: ele-1
        BindingThe codes SHALL be taken from For codes, see https://gematik.de/fhir/terminology/ValueSet/epa-xds-class-code-vs
        (required to https://gematik.de/fhir/terminology/ValueSet/epa-xds-class-code-vs)
        TypeCoding
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Requirements

        Allows for alternative encodings within a code system, and translations to other code systems.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        38. DocumentReference.category.coding:xds.system
        Definition

        The identification of the code system that defines the meaning of the symbol in the code.

        ShortIdentity of the terminology system
        Comments

        The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

        Control10..1
        Typeuri
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Need to be unambiguous about the source of the definition of the symbol.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        40. DocumentReference.category.coding:xds.version
        Definition

        The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

        ShortVersion of the system - if relevant
        Comments

        Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

        NoteThis is a business version Id, not a resource version Id (see discussion)
        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        42. DocumentReference.category.coding:xds.code
        Definition

        A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

        ShortSymbol in syntax defined by the system
        Control10..1
        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Need to refer to a particular code in the system.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        44. DocumentReference.category.coding:xds.display
        Definition

        A representation of the meaning of the code in the system, following the rules of the system.

        ShortRepresentation defined by the system
        Comments

        Note that FHIR strings SHALL NOT exceed 1MB in size

        Control10..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        46. DocumentReference.category.text
        Definition

        Hier wird ein Freitext eingetragen.


        A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

        ShortPlain text representation of the concept
        Comments

        Very often the text is the same as a displayName of one of the codings.

        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        48. DocumentReference.subject
        Definition

        Who or what the document is about. The document can be about a person, (patient or healthcare practitioner), a device (e.g. a machine) or even a group of subjects (such as a document about a herd of farm animals, or a set of patients that share a common exposure).

        ShortWho/what is the subject of the document
        Comments

        References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

        Control10..1
        This element is affected by the following invariants: ele-1
        TypeReference(TI Patient, Patient, Practitioner, Group, Device)
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
        50. DocumentReference.subject.reference
        Definition

        A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

        ShortLiteral reference, Relative, internal or absolute URL
        Comments

        Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

        Control0..1
        This element is affected by the following invariants: ref-1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        52. DocumentReference.subject.identifier
        Definition

        An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

        ShortLogical reference, when literal reference is not known
        Comments

        When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

        When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

        Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

        Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control0..1
        This element is affected by the following invariants: ele-1
        TypeIdentifier
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        54. DocumentReference.subject.identifier.use
        Definition

        The purpose of this identifier.

        Shortusual | official | temp | secondary | old (If known)
        Comments

        Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

        Control0..1
        BindingThe codes SHALL be taken from IdentifierUsehttp://hl7.org/fhir/ValueSet/identifier-use|4.0.1
        (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

        Identifies the purpose for this identifier, if known .

        Typecode
        Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Requirements

        Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        56. DocumentReference.subject.identifier.system
        Definition

        Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

        ShortThe namespace for the identifier value
        Comments

        Identifier.system is always case sensitive.

        Control0..1
        Typeuri
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

        ExampleGeneral: http://www.acme.com/identifiers/patient
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        58. DocumentReference.subject.identifier.value
        Definition

        The portion of the identifier typically relevant to the user and which is unique within the context of the system.

        ShortThe value that is unique
        Comments

        If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        ExampleGeneral: 123456
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        60. DocumentReference.subject.display
        Definition

        Plain text narrative that identifies the resource in addition to the resource reference.

        ShortText alternative for the resource
        Comments

        This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        62. DocumentReference.author
        Definition

        Hier werden Personen, Einrichtungen oder Geräte, die das Dokument erzeugt haben, referenziert.


        Identifies who is responsible for adding the information to the document.

        ShortWho and/or what authored the document
        Comments

        Not necessarily who did the actual data entry (i.e. typist) or who was the source (informant).

        Control0..*
        This element is affected by the following invariants: ele-1
        TypeReference(TI Practitioner, TI PractitionerRole, TI Organization, Device, TI Patient, TI Related Person, Practitioner, PractitionerRole, Organization, Device, Patient, RelatedPerson)
        Is Modifierfalse
        Must Supporttrue
        Must Support TypesNo must-support rules about the choice of types/profiles
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
        64. DocumentReference.author.reference
        Definition

        A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

        ShortLiteral reference, Relative, internal or absolute URL
        Comments

        Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

        Control0..1
        This element is affected by the following invariants: ref-1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        66. DocumentReference.author.display
        Definition

        Plain text narrative that identifies the resource in addition to the resource reference.

        ShortText alternative for the resource
        Comments

        This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        68. DocumentReference.description
        Definition

        Hier wird der Dokumentenverweis als Freitext erfasst, z. B. "Arztbrief vom 28.04.2020".


        Human-readable description of the source document.

        ShortHuman-readable description
        Comments

        What the document is about, a terse summary of the document.

        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Helps humans to assess whether the document is of interest.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        70. DocumentReference.content
        Definition

        In diesem Element werden Angaben zum angehängten Dokument gemacht.


        The document and format referenced. There may be multiple content element repetitions, each with a different format.

        ShortDocument referenced
        Control1..*
        This element is affected by the following invariants: ele-1
        TypeBackboneElement
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        72. DocumentReference.content.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored even if unrecognized
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        This element is affected by the following invariants: ele-1
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
        Summarytrue
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content, modifiers
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        74. DocumentReference.content.attachment
        Definition

        Hier wird das Dokument in Form eines formatierten Anhangs abgebildet.


        The document or URL of the document along with critical metadata to prove content has integrity.

        ShortWhere to access the document
        Comments

        When providing a summary view (for example with Observation.value[x]) Attachment should be represented with a brief display text such as "Signed Procedure Consent".

        Control1..1
        This element is affected by the following invariants: ele-1
        TypeAttachment
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsatt-1: If the Attachment has data, it SHALL have a contentType (data.empty() or contentType.exists())
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        76. DocumentReference.content.attachment.contentType
        Definition

        Hier wird das Dateiformat ausgewählt.


        Identifies the type of the data in the attachment and allows a method to be chosen to interpret or render the data. Includes mime type parameters such as charset where appropriate.

        ShortMime type of the content, with charset etc.
        Control10..1
        BindingThe codes SHALL be taken from Mime Typeshttp://hl7.org/fhir/ValueSet/mimetypes|4.0.1
        (required to http://hl7.org/fhir/ValueSet/mimetypes|4.0.1)

        The mime type of an attachment. Any valid mime type is allowed.

        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Processors of the data need to be able to know how to interpret the data.

        Pattern Valueapplication/pdf
        ExampleGeneral: text/plain; charset=UTF-8, image/png
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        78. DocumentReference.content.attachment.data
        Definition

        Hier wird das Dokument als Datei angehängt.


        The actual data of the attachment - a sequence of bytes, base64 encoded.

        ShortData inline, base64ed
        Comments

        The base64-encoded data SHALL be expressed in the same character set as the base resource XML or JSON.

        Control10..1
        Typebase64Binary
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summaryfalse
        Requirements

        The data needs to able to be transmitted inline.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        80. DocumentReference.content.attachment.url
        Definition

        A location where the data can be accessed.

        ShortUri where the data can be found
        Comments

        If both data and url are provided, the url SHALL point to the same content as the data contains. Urls may be relative references or may reference transient locations such as a wrapping envelope using cid: though this has ramifications for using signatures. Relative URLs are interpreted relative to the service url, like a resource reference, rather than relative to the resource itself. If a URL is provided, it SHALL resolve to actual data.

        Control0..01
        Typeurl
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Requirements

        The data needs to be transmitted by reference.

        ExampleGeneral: http://www.acme.com/logo-small.png
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        82. DocumentReference.content.attachment.title
        Definition

        Hier wird ein Titel bzw. eine Bezeichnung für die angehängte Datei angegeben.


        A label or set of text to display in place of the data.

        ShortLabel to display in place of the data
        Comments

        Note that FHIR strings SHALL NOT exceed 1MB in size

        Control10..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Applications need a label to display to a human user in place of the actual data if the data cannot be rendered or perceived by the viewer.

        ExampleGeneral: Official Corporate Logo
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        84. DocumentReference.content.attachment.creation
        Definition

        Hier wird der Zeitpunkt der Erstellung des Anhangs angegeben.


        The date that the attachment was first created.

        ShortDate attachment was first created
        Control0..1
        TypedateTime
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        This is often tracked as an integrity issue for use of the attachment.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

        Guidance on how to interpret the contents of this table can be foundhere

        0. DocumentReference
        Definition

        Hier wird ein Dokumentanhang abgebildet.

        2. DocumentReference.meta
        Must Supporttrue
        4. DocumentReference.meta.versionId
        Must Supporttrue
        6. DocumentReference.meta.lastUpdated
        Must Supporttrue
        8. DocumentReference.masterIdentifier
        Must Supporttrue
        10. DocumentReference.status
        Definition

        Hier wird der Status des Anhanges angegeben.

        Must Supporttrue
        12. DocumentReference.type
        Definition

        In diesem Element werden Angaben zum Typ des Dokuments gemacht. Diese werden als codierte Information und/oder als Freitext angegeben.

        Must Supporttrue
        14. DocumentReference.type.coding
        Definition

        Hier wird ein Code aus einem geeigneten Code-System angegeben.

        Must Supporttrue
        SlicingThis element introduces a set of slices on DocumentReference.type.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ $this
        • 16. DocumentReference.type.coding:xds
          Slice Namexds
          Definition

          Hier wird der Dokumenttyp gem. IHE-De-Terminologie in codierter Form angeben.

          Control0..1
          BindingThe codes SHALL be taken from https://gematik.de/fhir/terminology/ValueSet/epa-xds-type-code-vs
          (required to https://gematik.de/fhir/terminology/ValueSet/epa-xds-type-code-vs)
          Must Supporttrue
          18. DocumentReference.type.coding:xds.system
          Control1..?
          Must Supporttrue
          20. DocumentReference.type.coding:xds.version
          NoteThis is a business version Id, not a resource version Id (see discussion)
          Must Supporttrue
          22. DocumentReference.type.coding:xds.code
          Control1..?
          Must Supporttrue
          24. DocumentReference.type.coding:xds.display
          Control1..?
          Must Supporttrue
          26. DocumentReference.type.text
          Definition

          Hier wird ein Freitext eingetragen.

          Must Supporttrue
          28. DocumentReference.category
          Definition

          In diesem Element werden Angaben zur Kategorie des Dokuments gemacht. Diese werden als codierte Information und/oder als Freitext angegeben.

          Must Supporttrue
          30. DocumentReference.category.coding
          Definition

          Hier wird ein Code aus einem geeigneten Code-System angegeben.

          Must Supporttrue
          SlicingThis element introduces a set of slices on DocumentReference.category.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ $this
          • 32. DocumentReference.category.coding:xds
            Slice Namexds
            Definition

            Hier wird die Kategorie des Dokuments gem. IHE-De-Terminologie in codierter Form angeben.

            Control0..1
            BindingThe codes SHALL be taken from https://gematik.de/fhir/terminology/ValueSet/epa-xds-class-code-vs
            (required to https://gematik.de/fhir/terminology/ValueSet/epa-xds-class-code-vs)
            Must Supporttrue
            34. DocumentReference.category.coding:xds.system
            Control1..?
            Must Supporttrue
            36. DocumentReference.category.coding:xds.version
            NoteThis is a business version Id, not a resource version Id (see discussion)
            Must Supporttrue
            38. DocumentReference.category.coding:xds.code
            Control1..?
            Must Supporttrue
            40. DocumentReference.category.coding:xds.display
            Control1..?
            Must Supporttrue
            42. DocumentReference.category.text
            Definition

            Hier wird ein Freitext eingetragen.

            Must Supporttrue
            44. DocumentReference.subject
            Control1..?
            TypeReference(TI Patient)
            Must Supporttrue
            46. DocumentReference.subject.reference
            Must Supporttrue
            48. DocumentReference.subject.identifier
            NoteThis is a business identifier, not a resource identifier (see discussion)
            Must Supporttrue
            50. DocumentReference.subject.identifier.system
            Must Supporttrue
            52. DocumentReference.subject.identifier.value
            Must Supporttrue
            54. DocumentReference.subject.display
            Must Supporttrue
            56. DocumentReference.author
            Definition

            Hier werden Personen, Einrichtungen oder Geräte, die das Dokument erzeugt haben, referenziert.

            TypeReference(TI Practitioner, TI PractitionerRole, TI Organization, Device, TI Patient, TI Related Person)
            Must Supporttrue
            Must Support TypesNo must-support rules about the choice of types/profiles
            58. DocumentReference.author.reference
            Must Supporttrue
            60. DocumentReference.author.display
            Must Supporttrue
            62. DocumentReference.description
            Definition

            Hier wird der Dokumentenverweis als Freitext erfasst, z. B. "Arztbrief vom 28.04.2020".

            Must Supporttrue
            64. DocumentReference.content
            Definition

            In diesem Element werden Angaben zum angehängten Dokument gemacht.

            Must Supporttrue
            66. DocumentReference.content.attachment
            Definition

            Hier wird das Dokument in Form eines formatierten Anhangs abgebildet.

            Must Supporttrue
            68. DocumentReference.content.attachment.contentType
            Definition

            Hier wird das Dateiformat ausgewählt.

            Control1..?
            Must Supporttrue
            Pattern Valueapplication/pdf
            70. DocumentReference.content.attachment.data
            Definition

            Hier wird das Dokument als Datei angehängt.

            Control1..?
            Must Supporttrue
            72. DocumentReference.content.attachment.url
            Control0..0
            74. DocumentReference.content.attachment.title
            Definition

            Hier wird ein Titel bzw. eine Bezeichnung für die angehängte Datei angegeben.

            Control1..?
            Must Supporttrue
            76. DocumentReference.content.attachment.creation
            Definition

            Hier wird der Zeitpunkt der Erstellung des Anhangs angegeben.

            Must Supporttrue

            Guidance on how to interpret the contents of this table can be foundhere

            0. DocumentReference
            Definition

            Hier wird ein Dokumentanhang abgebildet.

            ShortA reference to a document
            Comments

            Usually, this is used for documents other than those defined by FHIR.

            Control0..*
            Is Modifierfalse
            Summaryfalse
            Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
            dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
            dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
            dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
            dom-6: A resource should have narrative for robust management (text.`div`.exists())
            2. DocumentReference.id
            Definition

            The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

            ShortLogical id of this artifact
            Comments

            The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

            Control0..1
            Typeid
            Is Modifierfalse
            Summarytrue
            4. DocumentReference.meta
            Definition

            The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

            ShortMetadata about the resource
            Control0..1
            TypeMeta
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            6. DocumentReference.meta.id
            Definition

            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

            ShortUnique id for inter-element referencing
            Control0..1
            Typestring
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            8. DocumentReference.meta.extension
            Definition

            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

            ShortAdditional content defined by implementations
            Comments

            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

            Control0..*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Alternate Namesextensions, user content
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            SlicingThis element introduces a set of slices on DocumentReference.meta.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 10. DocumentReference.meta.versionId
              Definition

              The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted.

              ShortVersion specific identifier
              Comments

              The server assigns this value, and ignores what the client specifies, except in the case that the server is imposing version integrity on updates/deletes.

              Control0..1
              Typeid
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Must Supporttrue
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              12. DocumentReference.meta.lastUpdated
              Definition

              When the resource last changed - e.g. when the version changed.

              ShortWhen the resource version last changed
              Comments

              This value is always populated except when the resource is first being created. The server / resource manager sets this value; what a client provides is irrelevant. This is equivalent to the HTTP Last-Modified and SHOULD have the same value on a read interaction.

              Control0..1
              Typeinstant
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Must Supporttrue
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              14. DocumentReference.meta.source
              Definition

              A uri that identifies the source system of the resource. This provides a minimal amount of Provenance information that can be used to track or differentiate the source of information in the resource. The source may identify another FHIR server, document, message, database, etc.

              ShortIdentifies where the resource comes from
              Comments

              In the provenance resource, this corresponds to Provenance.entity.what[x]. The exact use of the source (and the implied Provenance.entity.role) is left to implementer discretion. Only one nominated source is allowed; for additional provenance details, a full Provenance resource should be used.

              This element can be used to indicate where the current master source of a resource that has a canonical URL if the resource is no longer hosted at the canonical URL.

              Control0..1
              Typeuri
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              16. DocumentReference.meta.profile
              Definition

              A list of profiles (references to StructureDefinition resources) that this resource claims to conform to. The URL is a reference to StructureDefinition.url.

              ShortProfiles this resource claims to conform to
              Comments

              It is up to the server and/or other infrastructure of policy to determine whether/how these claims are verified and/or updated over time. The list of profile URLs is a set.

              Control0..*
              Typecanonical(StructureDefinition)
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              18. DocumentReference.meta.security
              Definition

              Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure.

              ShortSecurity Labels applied to this resource
              Comments

              The security labels can be updated without changing the stated version of the resource. The list of security labels is a set. Uniqueness is based the system/code, and version and display are ignored.

              Control0..*
              This element is affected by the following invariants: ele-1
              BindingUnless not suitable, these codes SHALL be taken from All Security Labels
              (extensible to http://hl7.org/fhir/ValueSet/security-labels|4.0.1)

              Security Labels from the Healthcare Privacy and Security Classification System.

              TypeCoding
              Is Modifierfalse
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              20. DocumentReference.meta.tag
              Definition

              Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.

              ShortTags applied to this resource
              Comments

              The tags can be updated without changing the stated version of the resource. The list of tags is a set. Uniqueness is based the system/code, and version and display are ignored.

              Control0..*
              This element is affected by the following invariants: ele-1
              BindingFor example codes, see CommonTags
              (example to http://hl7.org/fhir/ValueSet/common-tags|4.0.1)

              Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".

              TypeCoding
              Is Modifierfalse
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              22. DocumentReference.implicitRules
              Definition

              A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

              ShortA set of rules under which this content was created
              Comments

              Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

              Control0..1
              Typeuri
              Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              24. DocumentReference.language
              Definition

              The base language in which the resource is written.

              ShortLanguage of the resource content
              Comments

              Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

              Control0..1
              BindingThe codes SHOULD be taken from CommonLanguages
              (preferred to http://hl7.org/fhir/ValueSet/languages|4.0.1)

              A human language.

              Additional BindingsPurpose
              AllLanguagesMax Binding
              Typecode
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              26. DocumentReference.text
              Definition

              A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

              ShortText summary of the resource, for human interpretation
              Comments

              Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

              Control0..1
              TypeNarrative
              Is Modifierfalse
              Summaryfalse
              Alternate Namesnarrative, html, xhtml, display
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              28. DocumentReference.contained
              Definition

              These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

              ShortContained, inline Resources
              Comments

              This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

              Control0..*
              TypeResource
              Is Modifierfalse
              Summaryfalse
              Alternate Namesinline resources, anonymous resources, contained resources
              30. DocumentReference.extension
              Definition

              May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

              ShortAdditional content defined by implementations
              Comments

              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

              Control0..*
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              Alternate Namesextensions, user content
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              SlicingThis element introduces a set of slices on DocumentReference.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 32. DocumentReference.modifierExtension
                Definition

                May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                ShortExtensions that cannot be ignored
                Comments

                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                Control0..*
                TypeExtension
                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
                Summaryfalse
                Requirements

                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                Alternate Namesextensions, user content
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                SlicingThis element introduces a set of slices on DocumentReference.modifierExtension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 34. DocumentReference.masterIdentifier
                  Definition

                  Document identifier as assigned by the source of the document. This identifier is specific to this version of the document. This unique identifier may be used elsewhere to identify this version of the document.

                  ShortMaster Version Specific Identifier
                  Comments

                  CDA Document Id extension and root.

                  Control0..1
                  This element is affected by the following invariants: ele-1
                  TypeIdentifier
                  Is Modifierfalse
                  Must Supporttrue
                  Summarytrue
                  Requirements

                  The structure and format of this Id shall be consistent with the specification corresponding to the formatCode attribute. (e.g. for a DICOM standard document a 64-character numeric UID, for an HL7 CDA format a serialization of the CDA Document Id extension and root in the form "oid^extension", where OID is a 64 digits max, and the Id is a 16 UTF-8 char max. If the OID is coded without the extension then the '^' character shall not be included.).

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  36. DocumentReference.identifier
                  Definition

                  Other identifiers associated with the document, including version independent identifiers.

                  ShortOther identifiers for the document
                  NoteThis is a business identifier, not a resource identifier (see discussion)
                  Control0..*
                  This element is affected by the following invariants: ele-1
                  TypeIdentifier
                  Is Modifierfalse
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  38. DocumentReference.status
                  Definition

                  Hier wird der Status des Anhanges angegeben.

                  Shortcurrent | superseded | entered-in-error
                  Comments

                  This is the status of the DocumentReference object, which might be independent from the docStatus element.

                  This element is labeled as a modifier because the status contains the codes that mark the document or reference as not currently valid.

                  Control1..1
                  BindingThe codes SHALL be taken from DocumentReferenceStatus
                  (required to http://hl7.org/fhir/ValueSet/document-reference-status|4.0.1)

                  The status of the document reference.

                  Typecode
                  Is Modifiertrue because This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supporttrue
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  40. DocumentReference.docStatus
                  Definition

                  The status of the underlying document.

                  Shortpreliminary | final | amended | entered-in-error
                  Comments

                  The document that is pointed to might be in various lifecycle states.

                  Control0..1
                  BindingThe codes SHALL be taken from CompositionStatus
                  (required to http://hl7.org/fhir/ValueSet/composition-status|4.0.1)

                  Status of the underlying document.

                  Typecode
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  42. DocumentReference.type
                  Definition

                  In diesem Element werden Angaben zum Typ des Dokuments gemacht. Diese werden als codierte Information und/oder als Freitext angegeben.

                  ShortKind of document (LOINC if possible)
                  Comments

                  Key metadata element describing the document that describes he exact type of document. Helps humans to assess whether the document is of interest when viewing a list of documents.

                  Control0..1
                  This element is affected by the following invariants: ele-1
                  BindingThe codes SHOULD be taken from DocumentTypeValueSet
                  (preferred to http://hl7.org/fhir/ValueSet/c80-doc-typecodes|4.0.1)

                  Precise type of clinical document.

                  TypeCodeableConcept
                  Is Modifierfalse
                  Must Supporttrue
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  44. DocumentReference.type.id
                  Definition

                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                  ShortUnique id for inter-element referencing
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  46. DocumentReference.type.extension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                  ShortAdditional content defined by implementations
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesextensions, user content
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  SlicingThis element introduces a set of slices on DocumentReference.type.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 48. DocumentReference.type.coding
                    Definition

                    Hier wird ein Code aus einem geeigneten Code-System angegeben.

                    ShortCode defined by a terminology system
                    Comments

                    Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                    Control0..*
                    This element is affected by the following invariants: ele-1
                    TypeCoding
                    Is Modifierfalse
                    Must Supporttrue
                    Summarytrue
                    Requirements

                    Allows for alternative encodings within a code system, and translations to other code systems.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    SlicingThis element introduces a set of slices on DocumentReference.type.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                    • value @ $this
                    • 50. DocumentReference.type.coding:xds
                      Slice Namexds
                      Definition

                      Hier wird der Dokumenttyp gem. IHE-De-Terminologie in codierter Form angeben.

                      ShortCode defined by a terminology system
                      Comments

                      Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                      Control0..1
                      This element is affected by the following invariants: ele-1
                      BindingThe codes SHALL be taken from https://gematik.de/fhir/terminology/ValueSet/epa-xds-type-code-vs
                      (required to https://gematik.de/fhir/terminology/ValueSet/epa-xds-type-code-vs)
                      TypeCoding
                      Is Modifierfalse
                      Must Supporttrue
                      Summarytrue
                      Requirements

                      Allows for alternative encodings within a code system, and translations to other code systems.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      52. DocumentReference.type.coding:xds.id
                      Definition

                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                      ShortUnique id for inter-element referencing
                      Control0..1
                      Typestring
                      Is Modifierfalse
                      XML FormatIn the XML format, this property is represented as an attribute.
                      Summaryfalse
                      54. DocumentReference.type.coding:xds.extension
                      Definition

                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                      ShortAdditional content defined by implementations
                      Comments

                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                      Control0..*
                      TypeExtension
                      Is Modifierfalse
                      Summaryfalse
                      Alternate Namesextensions, user content
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      SlicingThis element introduces a set of slices on DocumentReference.type.coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 56. DocumentReference.type.coding:xds.system
                        Definition

                        The identification of the code system that defines the meaning of the symbol in the code.

                        ShortIdentity of the terminology system
                        Comments

                        The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                        Control1..1
                        Typeuri
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supporttrue
                        Summarytrue
                        Requirements

                        Need to be unambiguous about the source of the definition of the symbol.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        58. DocumentReference.type.coding:xds.version
                        Definition

                        The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                        ShortVersion of the system - if relevant
                        Comments

                        Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                        NoteThis is a business version Id, not a resource version Id (see discussion)
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supporttrue
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        60. DocumentReference.type.coding:xds.code
                        Definition

                        A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                        ShortSymbol in syntax defined by the system
                        Control1..1
                        Typecode
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supporttrue
                        Summarytrue
                        Requirements

                        Need to refer to a particular code in the system.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        62. DocumentReference.type.coding:xds.display
                        Definition

                        A representation of the meaning of the code in the system, following the rules of the system.

                        ShortRepresentation defined by the system
                        Comments

                        Note that FHIR strings SHALL NOT exceed 1MB in size

                        Control1..1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supporttrue
                        Summarytrue
                        Requirements

                        Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        64. DocumentReference.type.coding:xds.userSelected
                        Definition

                        Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                        ShortIf this coding was chosen directly by the user
                        Comments

                        Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                        Control0..1
                        Typeboolean
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summarytrue
                        Requirements

                        This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        66. DocumentReference.type.text
                        Definition

                        Hier wird ein Freitext eingetragen.

                        ShortPlain text representation of the concept
                        Comments

                        Very often the text is the same as a displayName of one of the codings.

                        Control0..1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supporttrue
                        Summarytrue
                        Requirements

                        The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        68. DocumentReference.category
                        Definition

                        In diesem Element werden Angaben zur Kategorie des Dokuments gemacht. Diese werden als codierte Information und/oder als Freitext angegeben.

                        ShortCategorization of document
                        Comments

                        Key metadata element describing the the category or classification of the document. This is a broader perspective that groups similar documents based on how they would be used. This is a primary key used in searching.

                        Control0..*
                        This element is affected by the following invariants: ele-1
                        BindingFor example codes, see DocumentClassValueSet
                        (example to http://hl7.org/fhir/ValueSet/document-classcodes|4.0.1)

                        High-level kind of a clinical document at a macro level.

                        TypeCodeableConcept
                        Is Modifierfalse
                        Must Supporttrue
                        Summarytrue
                        Alternate Namesclaxs
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        70. DocumentReference.category.id
                        Definition

                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        72. DocumentReference.category.extension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                        ShortAdditional content defined by implementations
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        SlicingThis element introduces a set of slices on DocumentReference.category.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                        • value @ url
                        • 74. DocumentReference.category.coding
                          Definition

                          Hier wird ein Code aus einem geeigneten Code-System angegeben.

                          ShortCode defined by a terminology system
                          Comments

                          Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                          Control0..*
                          This element is affected by the following invariants: ele-1
                          TypeCoding
                          Is Modifierfalse
                          Must Supporttrue
                          Summarytrue
                          Requirements

                          Allows for alternative encodings within a code system, and translations to other code systems.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          SlicingThis element introduces a set of slices on DocumentReference.category.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                          • value @ $this
                          • 76. DocumentReference.category.coding:xds
                            Slice Namexds
                            Definition

                            Hier wird die Kategorie des Dokuments gem. IHE-De-Terminologie in codierter Form angeben.

                            ShortCode defined by a terminology system
                            Comments

                            Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                            Control0..1
                            This element is affected by the following invariants: ele-1
                            BindingThe codes SHALL be taken from https://gematik.de/fhir/terminology/ValueSet/epa-xds-class-code-vs
                            (required to https://gematik.de/fhir/terminology/ValueSet/epa-xds-class-code-vs)
                            TypeCoding
                            Is Modifierfalse
                            Must Supporttrue
                            Summarytrue
                            Requirements

                            Allows for alternative encodings within a code system, and translations to other code systems.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            78. DocumentReference.category.coding:xds.id
                            Definition

                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                            ShortUnique id for inter-element referencing
                            Control0..1
                            Typestring
                            Is Modifierfalse
                            XML FormatIn the XML format, this property is represented as an attribute.
                            Summaryfalse
                            80. DocumentReference.category.coding:xds.extension
                            Definition

                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                            ShortAdditional content defined by implementations
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            TypeExtension
                            Is Modifierfalse
                            Summaryfalse
                            Alternate Namesextensions, user content
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            SlicingThis element introduces a set of slices on DocumentReference.category.coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                            • value @ url
                            • 82. DocumentReference.category.coding:xds.system
                              Definition

                              The identification of the code system that defines the meaning of the symbol in the code.

                              ShortIdentity of the terminology system
                              Comments

                              The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                              Control1..1
                              Typeuri
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Must Supporttrue
                              Summarytrue
                              Requirements

                              Need to be unambiguous about the source of the definition of the symbol.

                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              84. DocumentReference.category.coding:xds.version
                              Definition

                              The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                              ShortVersion of the system - if relevant
                              Comments

                              Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                              NoteThis is a business version Id, not a resource version Id (see discussion)
                              Control0..1
                              Typestring
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Must Supporttrue
                              Summarytrue
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              86. DocumentReference.category.coding:xds.code
                              Definition

                              A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                              ShortSymbol in syntax defined by the system
                              Control1..1
                              Typecode
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Must Supporttrue
                              Summarytrue
                              Requirements

                              Need to refer to a particular code in the system.

                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              88. DocumentReference.category.coding:xds.display
                              Definition

                              A representation of the meaning of the code in the system, following the rules of the system.

                              ShortRepresentation defined by the system
                              Comments

                              Note that FHIR strings SHALL NOT exceed 1MB in size

                              Control1..1
                              Typestring
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Must Supporttrue
                              Summarytrue
                              Requirements

                              Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              90. DocumentReference.category.coding:xds.userSelected
                              Definition

                              Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                              ShortIf this coding was chosen directly by the user
                              Comments

                              Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                              Control0..1
                              Typeboolean
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Summarytrue
                              Requirements

                              This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              92. DocumentReference.category.text
                              Definition

                              Hier wird ein Freitext eingetragen.

                              ShortPlain text representation of the concept
                              Comments

                              Very often the text is the same as a displayName of one of the codings.

                              Control0..1
                              Typestring
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Must Supporttrue
                              Summarytrue
                              Requirements

                              The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              94. DocumentReference.subject
                              Definition

                              Who or what the document is about. The document can be about a person, (patient or healthcare practitioner), a device (e.g. a machine) or even a group of subjects (such as a document about a herd of farm animals, or a set of patients that share a common exposure).

                              ShortWho/what is the subject of the document
                              Comments

                              References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

                              Control1..1
                              This element is affected by the following invariants: ele-1
                              TypeReference(TI Patient)
                              Is Modifierfalse
                              Must Supporttrue
                              Summarytrue
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
                              96. DocumentReference.subject.id
                              Definition

                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                              ShortUnique id for inter-element referencing
                              Control0..1
                              Typestring
                              Is Modifierfalse
                              XML FormatIn the XML format, this property is represented as an attribute.
                              Summaryfalse
                              98. DocumentReference.subject.extension
                              Definition

                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                              ShortAdditional content defined by implementations
                              Comments

                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                              Control0..*
                              TypeExtension
                              Is Modifierfalse
                              Summaryfalse
                              Alternate Namesextensions, user content
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                              SlicingThis element introduces a set of slices on DocumentReference.subject.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                              • value @ url
                              • 100. DocumentReference.subject.reference
                                Definition

                                A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                                ShortLiteral reference, Relative, internal or absolute URL
                                Comments

                                Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                                Control0..1
                                This element is affected by the following invariants: ref-1
                                Typestring
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Must Supporttrue
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                102. DocumentReference.subject.type
                                Definition

                                The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                                The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                                ShortType the reference refers to (e.g. "Patient")
                                Comments

                                This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                                Control0..1
                                BindingUnless not suitable, these codes SHALL be taken from ResourceType
                                (extensible to http://hl7.org/fhir/ValueSet/resource-types|4.0.1)

                                Aa resource (or, for logical models, the URI of the logical model).

                                Typeuri
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                104. DocumentReference.subject.identifier
                                Definition

                                An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                                ShortLogical reference, when literal reference is not known
                                Comments

                                When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                                When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                                Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                                Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                                NoteThis is a business identifier, not a resource identifier (see discussion)
                                Control0..1
                                This element is affected by the following invariants: ele-1
                                TypeIdentifier
                                Is Modifierfalse
                                Must Supporttrue
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                106. DocumentReference.subject.identifier.id
                                Definition

                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                ShortUnique id for inter-element referencing
                                Control0..1
                                Typestring
                                Is Modifierfalse
                                XML FormatIn the XML format, this property is represented as an attribute.
                                Summaryfalse
                                108. DocumentReference.subject.identifier.extension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortAdditional content defined by implementations
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                SlicingThis element introduces a set of slices on DocumentReference.subject.identifier.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                • value @ url
                                • 110. DocumentReference.subject.identifier.use
                                  Definition

                                  The purpose of this identifier.

                                  Shortusual | official | temp | secondary | old (If known)
                                  Comments

                                  Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

                                  Control0..1
                                  BindingThe codes SHALL be taken from IdentifierUse
                                  (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

                                  Identifies the purpose for this identifier, if known .

                                  Typecode
                                  Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Summarytrue
                                  Requirements

                                  Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  112. DocumentReference.subject.identifier.type
                                  Definition

                                  A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

                                  ShortDescription of identifier
                                  Comments

                                  This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

                                  Control0..1
                                  This element is affected by the following invariants: ele-1
                                  BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
                                  (extensible to http://hl7.org/fhir/ValueSet/identifier-type|4.0.1)

                                  A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

                                  TypeCodeableConcept
                                  Is Modifierfalse
                                  Summarytrue
                                  Requirements

                                  Allows users to make use of identifiers when the identifier system is not known.

                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  114. DocumentReference.subject.identifier.system
                                  Definition

                                  Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

                                  ShortThe namespace for the identifier value
                                  Comments

                                  Identifier.system is always case sensitive.

                                  Control0..1
                                  Typeuri
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Must Supporttrue
                                  Summarytrue
                                  Requirements

                                  There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

                                  ExampleGeneral: http://www.acme.com/identifiers/patient
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  116. DocumentReference.subject.identifier.value
                                  Definition

                                  The portion of the identifier typically relevant to the user and which is unique within the context of the system.

                                  ShortThe value that is unique
                                  Comments

                                  If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

                                  Control0..1
                                  Typestring
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Must Supporttrue
                                  Summarytrue
                                  ExampleGeneral: 123456
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  118. DocumentReference.subject.identifier.period
                                  Definition

                                  Time period during which identifier is/was valid for use.

                                  ShortTime period when id is/was valid for use
                                  Comments

                                  A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

                                  Period is not used for a duration (a measure of elapsed time). See Duration.

                                  Control0..1
                                  This element is affected by the following invariants: ele-1
                                  TypePeriod
                                  Is Modifierfalse
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  per-1: If present, start SHALL have a lower value than end (start.hasValue().not() or end.hasValue().not() or (start <= end))
                                  120. DocumentReference.subject.identifier.assigner
                                  Definition

                                  Organization that issued/manages the identifier.

                                  ShortOrganization that issued id (may be just text)
                                  Comments

                                  The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

                                  Control0..1
                                  This element is affected by the following invariants: ele-1
                                  TypeReference(Organization)
                                  Is Modifierfalse
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
                                  122. DocumentReference.subject.display
                                  Definition

                                  Plain text narrative that identifies the resource in addition to the resource reference.

                                  ShortText alternative for the resource
                                  Comments

                                  This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                                  Control0..1
                                  Typestring
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Must Supporttrue
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  124. DocumentReference.date
                                  Definition

                                  When the document reference was created.

                                  ShortWhen this document reference was created
                                  Comments

                                  Referencing/indexing time is used for tracking, organizing versions and searching.

                                  Control0..1
                                  Typeinstant
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Summarytrue
                                  Alternate Namesindexed
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  126. DocumentReference.author
                                  Definition

                                  Hier werden Personen, Einrichtungen oder Geräte, die das Dokument erzeugt haben, referenziert.

                                  ShortWho and/or what authored the document
                                  Comments

                                  Not necessarily who did the actual data entry (i.e. typist) or who was the source (informant).

                                  Control0..*
                                  This element is affected by the following invariants: ele-1
                                  TypeReference(TI Practitioner, TI PractitionerRole, TI Organization, Device, TI Patient, TI Related Person)
                                  Is Modifierfalse
                                  Must Supporttrue
                                  Must Support TypesNo must-support rules about the choice of types/profiles
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
                                  128. DocumentReference.author.id
                                  Definition

                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                  ShortUnique id for inter-element referencing
                                  Control0..1
                                  Typestring
                                  Is Modifierfalse
                                  XML FormatIn the XML format, this property is represented as an attribute.
                                  Summaryfalse
                                  130. DocumentReference.author.extension
                                  Definition

                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                  ShortAdditional content defined by implementations
                                  Comments

                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                  Control0..*
                                  TypeExtension
                                  Is Modifierfalse
                                  Summaryfalse
                                  Alternate Namesextensions, user content
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                  SlicingThis element introduces a set of slices on DocumentReference.author.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                  • value @ url
                                  • 132. DocumentReference.author.reference
                                    Definition

                                    A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                                    ShortLiteral reference, Relative, internal or absolute URL
                                    Comments

                                    Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                                    Control0..1
                                    This element is affected by the following invariants: ref-1
                                    Typestring
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Must Supporttrue
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    134. DocumentReference.author.type
                                    Definition

                                    The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                                    The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                                    ShortType the reference refers to (e.g. "Patient")
                                    Comments

                                    This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                                    Control0..1
                                    BindingUnless not suitable, these codes SHALL be taken from ResourceType
                                    (extensible to http://hl7.org/fhir/ValueSet/resource-types|4.0.1)

                                    Aa resource (or, for logical models, the URI of the logical model).

                                    Typeuri
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    136. DocumentReference.author.identifier
                                    Definition

                                    An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                                    ShortLogical reference, when literal reference is not known
                                    Comments

                                    When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                                    When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                                    Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                                    Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                                    NoteThis is a business identifier, not a resource identifier (see discussion)
                                    Control0..1
                                    This element is affected by the following invariants: ele-1
                                    TypeIdentifier
                                    Is Modifierfalse
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    138. DocumentReference.author.display
                                    Definition

                                    Plain text narrative that identifies the resource in addition to the resource reference.

                                    ShortText alternative for the resource
                                    Comments

                                    This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                                    Control0..1
                                    Typestring
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Must Supporttrue
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    140. DocumentReference.authenticator
                                    Definition

                                    Which person or organization authenticates that this document is valid.

                                    ShortWho/what authenticated the document
                                    Comments

                                    Represents a participant within the author institution who has legally authenticated or attested the document. Legal authentication implies that a document has been signed manually or electronically by the legal Authenticator.

                                    Control0..1
                                    This element is affected by the following invariants: ele-1
                                    TypeReference(Practitioner, PractitionerRole, Organization)
                                    Is Modifierfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
                                    142. DocumentReference.custodian
                                    Definition

                                    Identifies the organization or group who is responsible for ongoing maintenance of and access to the document.

                                    ShortOrganization which maintains the document
                                    Comments

                                    Identifies the logical organization (software system, vendor, or department) to go to find the current version, where to report issues, etc. This is different from the physical location (URL, disk drive, or server) of the document, which is the technical location of the document, which host may be delegated to the management of some other organization.

                                    Control0..1
                                    This element is affected by the following invariants: ele-1
                                    TypeReference(Organization)
                                    Is Modifierfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
                                    144. DocumentReference.relatesTo
                                    Definition

                                    Relationships that this document has with other document references that already exist.

                                    ShortRelationships to other documents
                                    Comments

                                    This element is labeled as a modifier because documents that append to other documents are incomplete on their own.

                                    Control0..*
                                    This element is affected by the following invariants: ele-1
                                    TypeBackboneElement
                                    Is Modifierfalse
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    146. DocumentReference.relatesTo.id
                                    Definition

                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                    ShortUnique id for inter-element referencing
                                    Control0..1
                                    Typestring
                                    Is Modifierfalse
                                    XML FormatIn the XML format, this property is represented as an attribute.
                                    Summaryfalse
                                    148. DocumentReference.relatesTo.extension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                    ShortAdditional content defined by implementations
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate Namesextensions, user content
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    SlicingThis element introduces a set of slices on DocumentReference.relatesTo.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                    • value @ url
                                    • 150. DocumentReference.relatesTo.modifierExtension
                                      Definition

                                      May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                      ShortExtensions that cannot be ignored even if unrecognized
                                      Comments

                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                      Control0..*
                                      TypeExtension
                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                      Summarytrue
                                      Requirements

                                      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                      Alternate Namesextensions, user content, modifiers
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                      152. DocumentReference.relatesTo.code
                                      Definition

                                      The type of relationship that this document has with anther document.

                                      Shortreplaces | transforms | signs | appends
                                      Comments

                                      If this document appends another document, then the document cannot be fully understood without also accessing the referenced document.

                                      Control1..1
                                      BindingThe codes SHALL be taken from DocumentRelationshipType
                                      (required to http://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1)

                                      The type of relationship between documents.

                                      Typecode
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      154. DocumentReference.relatesTo.target
                                      Definition

                                      The target document of this relationship.

                                      ShortTarget of the relationship
                                      Comments

                                      References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

                                      Control1..1
                                      This element is affected by the following invariants: ele-1
                                      TypeReference(DocumentReference)
                                      Is Modifierfalse
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
                                      156. DocumentReference.description
                                      Definition

                                      Hier wird der Dokumentenverweis als Freitext erfasst, z. B. "Arztbrief vom 28.04.2020".

                                      ShortHuman-readable description
                                      Comments

                                      What the document is about, a terse summary of the document.

                                      Control0..1
                                      Typestring
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Must Supporttrue
                                      Summarytrue
                                      Requirements

                                      Helps humans to assess whether the document is of interest.

                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      158. DocumentReference.securityLabel
                                      Definition

                                      A set of Security-Tag codes specifying the level of privacy/security of the Document. Note that DocumentReference.meta.security contains the security labels of the "reference" to the document, while DocumentReference.securityLabel contains a snapshot of the security labels on the document the reference refers to.

                                      ShortDocument security-tags
                                      Comments

                                      The confidentiality codes can carry multiple vocabulary items. HL7 has developed an understanding of security and privacy tags that might be desirable in a Document Sharing environment, called HL7 Healthcare Privacy and Security Classification System (HCS). The following specification is recommended but not mandated, as the vocabulary bindings are an administrative domain responsibility. The use of this method is up to the policy domain such as the XDS Affinity Domain or other Trust Domain where all parties including sender and recipients are trusted to appropriately tag and enforce.

                                      In the HL7 Healthcare Privacy and Security Classification (HCS) there are code systems specific to Confidentiality, Sensitivity, Integrity, and Handling Caveats. Some values would come from a local vocabulary as they are related to workflow roles and special projects.

                                      Control0..*
                                      This element is affected by the following invariants: ele-1
                                      BindingUnless not suitable, these codes SHALL be taken from All Security Labels
                                      (extensible to http://hl7.org/fhir/ValueSet/security-labels|4.0.1)

                                      Security Labels from the Healthcare Privacy and Security Classification System.

                                      TypeCodeableConcept
                                      Is Modifierfalse
                                      Summarytrue
                                      Requirements

                                      Use of the Health Care Privacy/Security Classification (HCS) system of security-tag use is recommended.

                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      160. DocumentReference.content
                                      Definition

                                      In diesem Element werden Angaben zum angehängten Dokument gemacht.

                                      ShortDocument referenced
                                      Control1..*
                                      This element is affected by the following invariants: ele-1
                                      TypeBackboneElement
                                      Is Modifierfalse
                                      Must Supporttrue
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      162. DocumentReference.content.id
                                      Definition

                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                      ShortUnique id for inter-element referencing
                                      Control0..1
                                      Typestring
                                      Is Modifierfalse
                                      XML FormatIn the XML format, this property is represented as an attribute.
                                      Summaryfalse
                                      164. DocumentReference.content.extension
                                      Definition

                                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                      ShortAdditional content defined by implementations
                                      Comments

                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                      Control0..*
                                      TypeExtension
                                      Is Modifierfalse
                                      Summaryfalse
                                      Alternate Namesextensions, user content
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                      SlicingThis element introduces a set of slices on DocumentReference.content.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                      • value @ url
                                      • 166. DocumentReference.content.modifierExtension
                                        Definition

                                        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                        ShortExtensions that cannot be ignored even if unrecognized
                                        Comments

                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                        Control0..*
                                        TypeExtension
                                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                        Summarytrue
                                        Requirements

                                        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                        Alternate Namesextensions, user content, modifiers
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                        168. DocumentReference.content.attachment
                                        Definition

                                        Hier wird das Dokument in Form eines formatierten Anhangs abgebildet.

                                        ShortWhere to access the document
                                        Comments

                                        When providing a summary view (for example with Observation.value[x]) Attachment should be represented with a brief display text such as "Signed Procedure Consent".

                                        Control1..1
                                        This element is affected by the following invariants: ele-1
                                        TypeAttachment
                                        Is Modifierfalse
                                        Must Supporttrue
                                        Summarytrue
                                        Invariantsatt-1: If the Attachment has data, it SHALL have a contentType (data.empty() or contentType.exists())
                                        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        170. DocumentReference.content.attachment.id
                                        Definition

                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                        ShortUnique id for inter-element referencing
                                        Control0..1
                                        Typestring
                                        Is Modifierfalse
                                        XML FormatIn the XML format, this property is represented as an attribute.
                                        Summaryfalse
                                        172. DocumentReference.content.attachment.extension
                                        Definition

                                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                        ShortAdditional content defined by implementations
                                        Comments

                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                        Control0..*
                                        TypeExtension
                                        Is Modifierfalse
                                        Summaryfalse
                                        Alternate Namesextensions, user content
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                        SlicingThis element introduces a set of slices on DocumentReference.content.attachment.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                        • value @ url
                                        • 174. DocumentReference.content.attachment.contentType
                                          Definition

                                          Hier wird das Dateiformat ausgewählt.

                                          ShortMime type of the content, with charset etc.
                                          Control1..1
                                          BindingThe codes SHALL be taken from Mime Types
                                          (required to http://hl7.org/fhir/ValueSet/mimetypes|4.0.1)

                                          The mime type of an attachment. Any valid mime type is allowed.

                                          Typecode
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Must Supporttrue
                                          Summarytrue
                                          Requirements

                                          Processors of the data need to be able to know how to interpret the data.

                                          Pattern Valueapplication/pdf
                                          ExampleGeneral: text/plain; charset=UTF-8, image/png
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          176. DocumentReference.content.attachment.language
                                          Definition

                                          The human language of the content. The value can be any valid value according to BCP 47.

                                          ShortHuman language of the content (BCP-47)
                                          Control0..1
                                          BindingThe codes SHOULD be taken from CommonLanguages
                                          (preferred to http://hl7.org/fhir/ValueSet/languages|4.0.1)

                                          A human language.

                                          Additional BindingsPurpose
                                          AllLanguagesMax Binding
                                          Typecode
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Summarytrue
                                          Requirements

                                          Users need to be able to choose between the languages in a set of attachments.

                                          ExampleGeneral: en-AU
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          178. DocumentReference.content.attachment.data
                                          Definition

                                          Hier wird das Dokument als Datei angehängt.

                                          ShortData inline, base64ed
                                          Comments

                                          The base64-encoded data SHALL be expressed in the same character set as the base resource XML or JSON.

                                          Control1..1
                                          Typebase64Binary
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Must Supporttrue
                                          Summaryfalse
                                          Requirements

                                          The data needs to able to be transmitted inline.

                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          180. DocumentReference.content.attachment.url
                                          Definition

                                          A location where the data can be accessed.

                                          ShortUri where the data can be found
                                          Comments

                                          If both data and url are provided, the url SHALL point to the same content as the data contains. Urls may be relative references or may reference transient locations such as a wrapping envelope using cid: though this has ramifications for using signatures. Relative URLs are interpreted relative to the service url, like a resource reference, rather than relative to the resource itself. If a URL is provided, it SHALL resolve to actual data.

                                          Control0..0
                                          Typeurl
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Summarytrue
                                          Requirements

                                          The data needs to be transmitted by reference.

                                          ExampleGeneral: http://www.acme.com/logo-small.png
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          182. DocumentReference.content.attachment.size
                                          Definition

                                          The number of bytes of data that make up this attachment (before base64 encoding, if that is done).

                                          ShortNumber of bytes of content (if url provided)
                                          Comments

                                          The number of bytes is redundant if the data is provided as a base64binary, but is useful if the data is provided as a url reference.

                                          Control0..1
                                          TypeunsignedInt
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Summarytrue
                                          Requirements

                                          Representing the size allows applications to determine whether they should fetch the content automatically in advance, or refuse to fetch it at all.

                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          184. DocumentReference.content.attachment.hash
                                          Definition

                                          The calculated hash of the data using SHA-1. Represented using base64.

                                          ShortHash of the data (sha-1, base64ed)
                                          Comments

                                          The hash is calculated on the data prior to base64 encoding, if the data is based64 encoded. The hash is not intended to support digital signatures. Where protection against malicious threats a digital signature should be considered, see Provenance.signature for mechanism to protect a resource with a digital signature.

                                          Control0..1
                                          Typebase64Binary
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Summarytrue
                                          Requirements

                                          Included so that applications can verify that the contents of a location have not changed due to technical failures (e.g., storage rot, transport glitch, incorrect version).

                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          186. DocumentReference.content.attachment.title
                                          Definition

                                          Hier wird ein Titel bzw. eine Bezeichnung für die angehängte Datei angegeben.

                                          ShortLabel to display in place of the data
                                          Comments

                                          Note that FHIR strings SHALL NOT exceed 1MB in size

                                          Control1..1
                                          Typestring
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Must Supporttrue
                                          Summarytrue
                                          Requirements

                                          Applications need a label to display to a human user in place of the actual data if the data cannot be rendered or perceived by the viewer.

                                          ExampleGeneral: Official Corporate Logo
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          188. DocumentReference.content.attachment.creation
                                          Definition

                                          Hier wird der Zeitpunkt der Erstellung des Anhangs angegeben.

                                          ShortDate attachment was first created
                                          Control0..1
                                          TypedateTime
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Must Supporttrue
                                          Summarytrue
                                          Requirements

                                          This is often tracked as an integrity issue for use of the attachment.

                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          190. DocumentReference.content.format
                                          Definition

                                          An identifier of the document encoding, structure, and template that the document conforms to beyond the base format indicated in the mimeType.

                                          ShortFormat/content rules for the document
                                          Comments

                                          Note that while IHE mostly issues URNs for format types, not all documents can be identified by a URI.

                                          Control0..1
                                          This element is affected by the following invariants: ele-1
                                          BindingThe codes SHOULD be taken from DocumentReferenceFormatCodeSet
                                          (preferred to http://hl7.org/fhir/ValueSet/formatcodes|4.0.1)

                                          Document Format Codes.

                                          TypeCoding
                                          Is Modifierfalse
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          192. DocumentReference.context
                                          Definition

                                          The clinical context in which the document was prepared.

                                          ShortClinical context of document
                                          Comments

                                          These values are primarily added to help with searching for interesting/relevant documents.

                                          Control0..1
                                          This element is affected by the following invariants: ele-1
                                          TypeBackboneElement
                                          Is Modifierfalse
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          194. DocumentReference.context.id
                                          Definition

                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                          ShortUnique id for inter-element referencing
                                          Control0..1
                                          Typestring
                                          Is Modifierfalse
                                          XML FormatIn the XML format, this property is represented as an attribute.
                                          Summaryfalse
                                          196. DocumentReference.context.extension
                                          Definition

                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                          ShortAdditional content defined by implementations
                                          Comments

                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                          Control0..*
                                          TypeExtension
                                          Is Modifierfalse
                                          Summaryfalse
                                          Alternate Namesextensions, user content
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                          SlicingThis element introduces a set of slices on DocumentReference.context.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                          • value @ url
                                          • 198. DocumentReference.context.modifierExtension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                            ShortExtensions that cannot be ignored even if unrecognized
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                            Summarytrue
                                            Requirements

                                            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                            Alternate Namesextensions, user content, modifiers
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            200. DocumentReference.context.encounter
                                            Definition

                                            Describes the clinical encounter or type of care that the document content is associated with.

                                            ShortContext of the document content
                                            Comments

                                            References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

                                            Control0..*
                                            This element is affected by the following invariants: ele-1
                                            TypeReference(Encounter, EpisodeOfCare)
                                            Is Modifierfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
                                            202. DocumentReference.context.event
                                            Definition

                                            This list of codes represents the main clinical acts, such as a colonoscopy or an appendectomy, being documented. In some cases, the event is inherent in the type Code, such as a "History and Physical Report" in which the procedure being documented is necessarily a "History and Physical" act.

                                            ShortMain clinical acts documented
                                            Comments

                                            An event can further specialize the act inherent in the type, such as where it is simply "Procedure Report" and the procedure was a "colonoscopy". If one or more event codes are included, they shall not conflict with the values inherent in the class or type elements as such a conflict would create an ambiguous situation.

                                            Control0..*
                                            This element is affected by the following invariants: ele-1
                                            BindingFor example codes, see v3 Code System ActCode
                                            (example to http://terminology.hl7.org/ValueSet/v3-ActCode)

                                            This list of codes represents the main clinical acts being documented.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            204. DocumentReference.context.period
                                            Definition

                                            The time period over which the service that is described by the document was provided.

                                            ShortTime of service that is being documented
                                            Comments

                                            A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

                                            Period is not used for a duration (a measure of elapsed time). See Duration.

                                            Control0..1
                                            This element is affected by the following invariants: ele-1
                                            TypePeriod
                                            Is Modifierfalse
                                            Summarytrue
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            per-1: If present, start SHALL have a lower value than end (start.hasValue().not() or end.hasValue().not() or (start <= end))
                                            206. DocumentReference.context.facilityType
                                            Definition

                                            The kind of facility where the patient was seen.

                                            ShortKind of facility where patient was seen
                                            Comments

                                            Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

                                            Control0..1
                                            This element is affected by the following invariants: ele-1
                                            BindingFor example codes, see FacilityTypeCodeValueSet
                                            (example to http://hl7.org/fhir/ValueSet/c80-facilitycodes|4.0.1)

                                            XDS Facility Type.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            208. DocumentReference.context.practiceSetting
                                            Definition

                                            This property may convey specifics about the practice setting where the content was created, often reflecting the clinical specialty.

                                            ShortAdditional details about where the content was created (e.g. clinical specialty)
                                            Comments

                                            This element should be based on a coarse classification system for the class of specialty practice. Recommend the use of the classification system for Practice Setting, such as that described by the Subject Matter Domain in LOINC.

                                            Control0..1
                                            This element is affected by the following invariants: ele-1
                                            BindingFor example codes, see PracticeSettingCodeValueSet
                                            (example to http://hl7.org/fhir/ValueSet/c80-practice-codes|4.0.1)

                                            Additional details about where the content was created (e.g. clinical specialty).

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Requirements

                                            This is an important piece of metadata that providers often rely upon to quickly sort and/or filter out to find specific content.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            210. DocumentReference.context.sourcePatientInfo
                                            Definition

                                            The Patient Information as known when the document was published. May be a reference to a version specific, or contained.

                                            ShortPatient demographics from source
                                            Comments

                                            References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

                                            Control0..1
                                            This element is affected by the following invariants: ele-1
                                            TypeReference(Patient)
                                            Is Modifierfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
                                            212. DocumentReference.context.related
                                            Definition

                                            Related identifiers or resources associated with the DocumentReference.

                                            ShortRelated identifiers or resources
                                            Comments

                                            May be identifiers or resources that caused the DocumentReference or referenced Document to be created.

                                            Control0..*
                                            This element is affected by the following invariants: ele-1
                                            TypeReference(Resource)
                                            Is Modifierfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))