Implementation Guide
Telematikinfrastruktur (TI) Common
Version 1.2.0 - release

## Resource Profile: TIOperationDefinition - Detailed Descriptions

Active as of 2025-09-12

Definitions for the ti-operationdefinition resource profile.

- Key Elements Table
- Differential Elements Table
- Snapshot Elements Table

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

0. OperationDefinition
Definition | A formal computable definition of an operation (on the RESTful interface) or a named query (using the search interaction).
Short | Definition of an operation or a named query
Control | 0..*
Is Modifier | false
Summary | false
Invariants | 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()) opd-0: Name should be usable as an identifier for the module by machine processing applications such as code generation (name.matches('[A-Z]([A-Za-z0-9_]){0,254}')) op-affectsState-vs-method: Wenn affectsState = true, darf keine http-method Extension GET enthalten. (`affectsState != true or extension.where(url = 'https://gematik.de/fhir/ti/StructureDefinition/http-method').all(value != 'GET')`)
2. OperationDefinition.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.
Short | A 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.
Control | 0..1
Type | uri
Is Modifier | true 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 Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. OperationDefinition.extension:method
Slice Name | method
Definition | Gibt an, ob eine FHIR Operation mit GET, POST oder beidem verwendet werden darf.
Short | HTTP Method for FHIR Operation
Control | 0..2 This element is affected by the following invariants: ele-1
Type | Extension(HTTP Method for FHIR Operation) (Extension Type: code)
Is Modifier | false
Must Support | true
Summary | false
Invariants | ele-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())
6. OperationDefinition.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).
Short | Extensions 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.
Control | 0..* This element is affected by the following invariants: ele-1
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
Summary | false
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 Names | extensions, user content
Invariants | ele-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())
Slicing | This element introduces a set of slices on `OperationDefinition.modifierExtension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
8. OperationDefinition.name
Definition | A natural language name identifying the operation definition. This name should be usable as an identifier for the module by machine processing applications such as code generation.
Short | Name for this operation definition (computer friendly)
Comments | The name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly.
Control | 1..1 This element is affected by the following invariants: inv-0
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Support human navigation and code generation.
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
10. OperationDefinition.status
Definition | The status of this operation definition. Enables tracking the life-cycle of the content.
Short | draft | active | retired | unknown
Comments | Allows filtering of operation definitions that are appropriate for use versus not.
Control | 1..1
Binding | The codes SHALL be taken from PublicationStatus http://hl7.org/fhir/ValueSet/publication-status|4.0.1 (required to `http://hl7.org/fhir/ValueSet/publication-status|4.0.1` ) The lifecycle status of an artifact.
Type | code
Is Modifier | true because This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. OperationDefinition.kind
Definition | Whether this is an operation or a named query.
Short | operation | query
Comments | Named queries are invoked differently, and have different capabilities.
Control | 1..1
Binding | The codes SHALL be taken from OperationKind http://hl7.org/fhir/ValueSet/operation-kind|4.0.1 (required to `http://hl7.org/fhir/ValueSet/operation-kind|4.0.1` ) Whether an operation is a normal operation or a query.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
14. OperationDefinition.affectsState
Definition | Whether the operation affects state. Side effects such as producing audit trail entries do not count as 'affecting state'.
Short | Whether content is changed by the operation
Comments | What http methods can be used for the operation depends on the .affectsState value and whether the input parameters are primitive or complex: Servers SHALL support POST method for all operations. Servers SHALL support GET method if all the parameters for the operation are primitive or there are no parameters and the operation has affectsState = false.
Control | 0..1
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
16. OperationDefinition.code
Definition | The name used to invoke the operation.
Short | Name used to invoke the operation
Control | 1..1
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
18. OperationDefinition.system
Definition | Indicates whether this operation or named query can be invoked at the system level (e.g. without needing to choose a resource type for the context).
Short | Invoke at the system level?
Control | 1..1
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. OperationDefinition.type
Definition | Indicates whether this operation or named query can be invoked at the resource type level for any given resource type level (e.g. without needing to choose a specific resource id for the context).
Short | Invoke at the type level?
Control | 1..1
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
22. OperationDefinition.instance
Definition | Indicates whether this operation can be invoked on a particular instance of one of the given types.
Short | Invoke on an instance?
Control | 1..1
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
24. OperationDefinition.inputProfile
Definition | Additional validation information for the in parameters - a single profile that covers all the parameters. The profile is a constraint on the parameters resource as a whole.
Short | Validation information for in parameters
Comments | If present the profile shall not conflict with what is specified in the parameters in the operation definition (max/min etc.), though it may provide additional constraints. The constraints expressed in the profile apply whether the operation is invoked by a POST wih parameters or not.
Control | 0..1
Type | canonical(StructureDefinition)
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
26. OperationDefinition.outputProfile
Definition | Additional validation information for the out parameters - a single profile that covers all the parameters. The profile is a constraint on the parameters resource.
Short | Validation information for out parameters
Comments | If present the profile shall not conflict with what is specified in the parameters in the operation definition (max/min etc.), though it may provide additional constraints. The constraints expressed in the profile apply whether the operation is invoked by a POST wih parameters or not.
Control | 0..1
Type | canonical(StructureDefinition)
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | false
Invariants | ele-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. OperationDefinition
Invariants | op-affectsState-vs-method: Wenn affectsState = true, darf keine http-method Extension GET enthalten. (`affectsState != true or extension.where(url = 'https://gematik.de/fhir/ti/StructureDefinition/http-method').all(value != 'GET')`)
2. OperationDefinition.extension:method
Slice Name | method
Control | 0..2
Type | Extension(HTTP Method for FHIR Operation) (Extension Type: code)
Must Support | true
4. OperationDefinition.kind
Must Support | true
6. OperationDefinition.affectsState
Must Support | true
8. OperationDefinition.code
Must Support | true
10. OperationDefinition.system
Must Support | true
12. OperationDefinition.type
Must Support | true
14. OperationDefinition.instance
Must Support | true
16. OperationDefinition.inputProfile
Must Support | true
18. OperationDefinition.outputProfile
Must Support | true

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

0. OperationDefinition
Definition | A formal computable definition of an operation (on the RESTful interface) or a named query (using the search interaction).
Short | Definition of an operation or a named query
Control | 0..*
Is Modifier | false
Summary | false
Invariants | 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()`) opd-0: Name should be usable as an identifier for the module by machine processing applications such as code generation (`name.matches('[A-Z]([A-Za-z0-9_]){0,254}')`) op-affectsState-vs-method: Wenn affectsState = true, darf keine http-method Extension GET enthalten. (`affectsState != true or extension.where(url = 'https://gematik.de/fhir/ti/StructureDefinition/http-method').all(value != 'GET')`)
2. OperationDefinition.id
Definition | The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
Short | Logical 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.
Control | 0..1
Type | id
Is Modifier | false
Summary | true
4. OperationDefinition.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.
Short | Metadata about the resource
Control | 0..1
Type | Meta
Is Modifier | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
6. OperationDefinition.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.
Short | A 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.
Control | 0..1
Type | uri
Is Modifier | true 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 Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
8. OperationDefinition.language
Definition | The base language in which the resource is written.
Short | Language 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).
Control | 0..1
Binding | The codes SHOULD be taken from CommonLanguages (preferred to `http://hl7.org/fhir/ValueSet/languages|4.0.1` ) A human language.
Additional Bindings | Purpose
AllLanguages | Max Binding
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
10. OperationDefinition.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.
Short | Text 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.
Control | 0..1
Type | Narrative
Is Modifier | false
Summary | false
Alternate Names | narrative, html, xhtml, display
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
12. OperationDefinition.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.
Short | Contained, 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.
Control | 0..*
Type | Resource
Is Modifier | false
Summary | false
Alternate Names | inline resources, anonymous resources, contained resources
14. OperationDefinition.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.
Short | Additional 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-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()`)
Slicing | This element introduces a set of slices on `OperationDefinition.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
16. OperationDefinition.extension:method
Slice Name | method
Definition | Gibt an, ob eine FHIR Operation mit GET, POST oder beidem verwendet werden darf.
Short | HTTP Method for FHIR Operation
Control | 0..2
Type | Extension(HTTP Method for FHIR Operation) (Extension Type: code)
Is Modifier | false
Must Support | true
Summary | false
Invariants | ele-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()`)
18. OperationDefinition.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).
Short | Extensions 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
Summary | false
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 Names | extensions, user content
Invariants | ele-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()`)
Slicing | This element introduces a set of slices on `OperationDefinition.modifierExtension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
20. OperationDefinition.url
Definition | An absolute URI that is used to identify this operation definition when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which at which an authoritative instance of this operation definition is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the operation definition is stored on different servers.
Short | Canonical identifier for this operation definition, represented as a URI (globally unique)
Comments | Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred. Multiple instances may share the same URL if they have a distinct version. The determination of when to create a new version of a resource (same url, new version) vs. defining a new artifact is up to the author. Considerations for making this decision are found in Technical and Business Versions. In some cases, the resource can no longer be found at the stated url, but the url itself cannot change. Implementations can use the meta.source element to indicate where the current master source of the resource can be found.
Control | 0..1
Type | uri
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Allows the operation definition to be referenced by a single globally unique identifier.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
22. OperationDefinition.version
Definition | The identifier that is used to identify this version of the operation definition when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the operation definition author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence.
Short | Business version of the operation definition
Comments | There may be different operation definition instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a reference to a particular business version of the operation definition with the format [url]|[version].
Note | This is a business version Id, not a resource version Id (see discussion)
Control | 0..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
24. OperationDefinition.name
Definition | A natural language name identifying the operation definition. This name should be usable as an identifier for the module by machine processing applications such as code generation.
Short | Name for this operation definition (computer friendly)
Comments | The name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly.
Control | 1..1 This element is affected by the following invariants: inv-0
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Support human navigation and code generation.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
26. OperationDefinition.title
Definition | A short, descriptive, user-friendly title for the operation definition.
Short | Name for this operation definition (human friendly)
Comments | This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.
Control | 0..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
28. OperationDefinition.status
Definition | The status of this operation definition. Enables tracking the life-cycle of the content.
Short | draft | active | retired | unknown
Comments | Allows filtering of operation definitions that are appropriate for use versus not.
Control | 1..1
Binding | The codes SHALL be taken from PublicationStatus (required to `http://hl7.org/fhir/ValueSet/publication-status|4.0.1` ) The lifecycle status of an artifact.
Type | code
Is Modifier | true because This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
30. OperationDefinition.kind
Definition | Whether this is an operation or a named query.
Short | operation | query
Comments | Named queries are invoked differently, and have different capabilities.
Control | 1..1
Binding | The codes SHALL be taken from OperationKind (required to `http://hl7.org/fhir/ValueSet/operation-kind|4.0.1` ) Whether an operation is a normal operation or a query.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
32. OperationDefinition.experimental
Definition | A Boolean value to indicate that this operation definition is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage.
Short | For testing purposes, not real usage
Comments | Allows filtering of operation definitions that are appropriate for use versus not.
Control | 0..1
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Enables experimental content to be developed following the same lifecycle that would be used for a production-level operation definition.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
34. OperationDefinition.date
Definition | The date (and optionally time) when the operation definition was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the operation definition changes.
Short | Date last changed
Comments | Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the operation definition. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.
Control | 0..1
Type | dateTime
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Alternate Names | Revision Date
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
36. OperationDefinition.publisher
Definition | The name of the organization or individual that published the operation definition.
Short | Name of the publisher (organization or individual)
Comments | Usually an organization but may be an individual. The publisher (or steward) of the operation definition is the organization or individual primarily responsible for the maintenance and upkeep of the operation definition. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the operation definition. This item SHOULD be populated unless the information is available from context.
Control | 0..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Helps establish the "authority/credibility" of the operation definition. May also allow for contact.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
38. OperationDefinition.contact
Definition | Contact details to assist a user in finding and communicating with the publisher.
Short | Contact details for the publisher
Comments | May be a web site, an email address, a telephone number, etc.
Control | 0..* This element is affected by the following invariants: ele-1
Type | ContactDetail
Is Modifier | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
40. OperationDefinition.description
Definition | A free text natural language description of the operation definition from a consumer's perspective.
Short | Natural language description of the operation definition
Comments | This description can be used to capture details such as why the operation definition was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the operation definition as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the operation definition is presumed to be the predominant language in the place the operation definition was created).
Control | 0..1
Type | markdown
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
42. OperationDefinition.useContext
Definition | The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate operation definition instances.
Short | The context that the content is intended to support
Comments | When multiple useContexts are specified, there is no expectation that all or any of the contexts apply.
Control | 0..* This element is affected by the following invariants: ele-1
Type | UsageContext
Is Modifier | false
Summary | true
Requirements | Assist in searching for appropriate content.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
44. OperationDefinition.jurisdiction
Definition | A legal or geographic region in which the operation definition is intended to be used.
Short | Intended jurisdiction for operation definition (if applicable)
Comments | It may be possible for the operation definition to be used in jurisdictions other than those for which it was originally designed or intended.
Control | 0..* This element is affected by the following invariants: ele-1
Binding | Unless not suitable, these codes SHALL be taken from Jurisdiction ValueSet (extensible to `http://hl7.org/fhir/ValueSet/jurisdiction|4.0.1` ) Countries and regions within which this artifact is targeted for use.
Type | CodeableConcept
Is Modifier | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
46. OperationDefinition.purpose
Definition | Explanation of why this operation definition is needed and why it has been designed as it has.
Short | Why this operation definition is defined
Comments | This element does not describe the usage of the operation definition. Instead, it provides traceability of ''why'' the resource is either needed or ''why'' it is defined as it is. This may be used to point to source materials or specifications that drove the structure of this operation definition.
Control | 0..1
Type | markdown
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
48. OperationDefinition.affectsState
Definition | Whether the operation affects state. Side effects such as producing audit trail entries do not count as 'affecting state'.
Short | Whether content is changed by the operation
Comments | What http methods can be used for the operation depends on the .affectsState value and whether the input parameters are primitive or complex: Servers SHALL support POST method for all operations. Servers SHALL support GET method if all the parameters for the operation are primitive or there are no parameters and the operation has affectsState = false.
Control | 0..1
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
50. OperationDefinition.code
Definition | The name used to invoke the operation.
Short | Name used to invoke the operation
Control | 1..1
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
52. OperationDefinition.comment
Definition | Additional information about how to use this operation or named query.
Short | Additional information about use
Comments | Systems are not required to have markdown support, so the text should be readable without markdown processing. The markdown syntax is GFM - see https://github.github.com/gfm/
Control | 0..1
Type | markdown
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
54. OperationDefinition.base
Definition | Indicates that this operation definition is a constraining profile on the base.
Short | Marks this as a profile of the base
Comments | A constrained profile can make optional parameters required or not used and clarify documentation.
Control | 0..1
Type | canonical(OperationDefinition)
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
56. OperationDefinition.resource
Definition | The types on which this operation can be executed.
Short | Types this operation applies to
Comments | If the type is an abstract resource ("Resource" or "DomainResource") then the operation can be invoked on any concrete specialization.
Control | 0..*
Binding | The codes SHALL be taken from ResourceType (required to `http://hl7.org/fhir/ValueSet/resource-types|4.0.1` ) One of the resource types defined as part of this version of FHIR.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
58. OperationDefinition.system
Definition | Indicates whether this operation or named query can be invoked at the system level (e.g. without needing to choose a resource type for the context).
Short | Invoke at the system level?
Control | 1..1
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
60. OperationDefinition.type
Definition | Indicates whether this operation or named query can be invoked at the resource type level for any given resource type level (e.g. without needing to choose a specific resource id for the context).
Short | Invoke at the type level?
Control | 1..1
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
62. OperationDefinition.instance
Definition | Indicates whether this operation can be invoked on a particular instance of one of the given types.
Short | Invoke on an instance?
Control | 1..1
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
64. OperationDefinition.inputProfile
Definition | Additional validation information for the in parameters - a single profile that covers all the parameters. The profile is a constraint on the parameters resource as a whole.
Short | Validation information for in parameters
Comments | If present the profile shall not conflict with what is specified in the parameters in the operation definition (max/min etc.), though it may provide additional constraints. The constraints expressed in the profile apply whether the operation is invoked by a POST wih parameters or not.
Control | 0..1
Type | canonical(StructureDefinition)
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
66. OperationDefinition.outputProfile
Definition | Additional validation information for the out parameters - a single profile that covers all the parameters. The profile is a constraint on the parameters resource.
Short | Validation information for out parameters
Comments | If present the profile shall not conflict with what is specified in the parameters in the operation definition (max/min etc.), though it may provide additional constraints. The constraints expressed in the profile apply whether the operation is invoked by a POST wih parameters or not.
Control | 0..1
Type | canonical(StructureDefinition)
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | true
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
68. OperationDefinition.parameter
Definition | The parameters for the operation/query.
Short | Parameters for the operation/query
Comments | Query Definitions only have one output parameter, named "result". This might not be described, but can be to allow a profile to be defined.
Control | 0..* This element is affected by the following invariants: ele-1
Type | BackboneElement
Is Modifier | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) opd-1: Either a type must be provided, or parts (`type.exists() or part.exists()`) opd-2: A search type can only be specified for parameters of type string (`searchType.exists() implies type = 'string'`) opd-3: A targetProfile can only be specified for parameters of type Reference or Canonical (`targetProfile.exists() implies (type = 'Reference' or type = 'canonical')`)
70. OperationDefinition.parameter.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
72. OperationDefinition.parameter.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.
Short | Additional 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-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()`)
Slicing | This element introduces a set of slices on `OperationDefinition.parameter.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
74. OperationDefinition.parameter.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).
Short | Extensions 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
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 Names | extensions, user content, modifiers
Invariants | ele-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()`)
76. OperationDefinition.parameter.name
Definition | The name of used to identify the parameter.
Short | Name in Parameters.parameter.name or in URL
Comments | This name must be a token (start with a letter in a..z, and only contain letters, numerals, and underscore. Note that for search parameters (type = string, with a search type), the name may be altered by the search modifiers.
Control | 1..1
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
78. OperationDefinition.parameter.use
Definition | Whether this is an input or an output parameter.
Short | in | out
Comments | If a parameter name is used for both an input and an output parameter, the parameter should be defined twice.
Control | 1..1
Binding | The codes SHALL be taken from OperationParameterUse (required to `http://hl7.org/fhir/ValueSet/operation-parameter-use|4.0.1` ) Whether an operation parameter is an input or an output parameter.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
80. OperationDefinition.parameter.min
Definition | The minimum number of times this parameter SHALL appear in the request or response.
Short | Minimum Cardinality
Comments | 32 bit number; for values larger than this, use decimal
Control | 1..1
Type | integer
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
82. OperationDefinition.parameter.max
Definition | The maximum number of times this element is permitted to appear in the request or response.
Short | Maximum Cardinality (a number or *)
Comments | Note that FHIR strings SHALL NOT exceed 1MB in size
Control | 1..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
84. OperationDefinition.parameter.documentation
Definition | Describes the meaning or use of this parameter.
Short | Description of meaning/use
Comments | Note that FHIR strings SHALL NOT exceed 1MB in size
Control | 0..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
86. OperationDefinition.parameter.type
Definition | The type for this parameter.
Short | What type this parameter has
Comments | if there is no stated parameter, then the parameter is a multi-part parameter; type and must have at least one part defined.
Control | 0..1 This element is affected by the following invariants: opd-1
Binding | The codes SHALL be taken from FHIRAllTypes (required to `http://hl7.org/fhir/ValueSet/all-types|4.0.1` ) A list of all the concrete types defined in this version of the FHIR specification - Abstract Types, Data Types and Resource Types.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
88. OperationDefinition.parameter.targetProfile
Definition | Used when the type is "Reference" or "canonical", and identifies a profile structure or implementation Guide that applies to the target of the reference this parameter refers to. If any profiles are specified, then the content must conform to at least one of them. The URL can be a local reference - to a contained StructureDefinition, or a reference to another StructureDefinition or Implementation Guide by a canonical URL. When an implementation guide is specified, the target resource SHALL conform to at least one profile defined in the implementation guide.
Short | If type is Reference | canonical, allowed targets
Comments | Often, these profiles are the base definitions from the spec (e.g. http://hl7.org/fhir/StructureDefinition/Patient).
Control | 0..*
Type | canonical(StructureDefinition)
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
90. OperationDefinition.parameter.searchType
Definition | How the parameter is understood as a search parameter. This is only used if the parameter type is 'string'.
Short | number | date | string | token | reference | composite | quantity | uri | special
Control | 0..1 This element is affected by the following invariants: opd-2
Binding | The codes SHALL be taken from SearchParamType (required to `http://hl7.org/fhir/ValueSet/search-param-type|4.0.1` ) Data types allowed to be used for search parameters.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
92. OperationDefinition.parameter.binding
Definition | Binds to a value set if this parameter is coded (code, Coding, CodeableConcept).
Short | ValueSet details if this is coded
Control | 0..1 This element is affected by the following invariants: ele-1
Type | BackboneElement
Is Modifier | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
94. OperationDefinition.parameter.binding.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
96. OperationDefinition.parameter.binding.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.
Short | Additional 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-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()`)
Slicing | This element introduces a set of slices on `OperationDefinition.parameter.binding.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
98. OperationDefinition.parameter.binding.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).
Short | Extensions 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
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 Names | extensions, user content, modifiers
Invariants | ele-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()`)
100. OperationDefinition.parameter.binding.strength
Definition | Indicates the degree of conformance expectations associated with this binding - that is, the degree to which the provided value set must be adhered to in the instances.
Short | required | extensible | preferred | example
Comments | For further discussion, see Using Terminologies.
Control | 1..1
Binding | The codes SHALL be taken from BindingStrength (required to `http://hl7.org/fhir/ValueSet/binding-strength|4.0.1` ) Indication of the degree of conformance expectations associated with a binding.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Alternate Names | conformance, extensibility
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
102. OperationDefinition.parameter.binding.valueSet
Definition | Points to the value set or external definition (e.g. implicit value set) that identifies the set of codes to be used.
Short | Source of value set
Comments | For value sets with a referenceResource, the display can contain the value set description. The reference may be version-specific or not.
Control | 1..1
Type | canonical(ValueSet)
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
104. OperationDefinition.parameter.referencedFrom
Definition | Identifies other resource parameters within the operation invocation that are expected to resolve to this resource.
Short | References to this parameter
Comments | Resolution applies if the referenced parameter exists.
Control | 0..* This element is affected by the following invariants: ele-1
Type | BackboneElement
Is Modifier | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
106. OperationDefinition.parameter.referencedFrom.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
108. OperationDefinition.parameter.referencedFrom.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.
Short | Additional 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-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()`)
Slicing | This element introduces a set of slices on `OperationDefinition.parameter.referencedFrom.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
110. OperationDefinition.parameter.referencedFrom.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).
Short | Extensions 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
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 Names | extensions, user content, modifiers
Invariants | ele-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()`)
112. OperationDefinition.parameter.referencedFrom.source
Definition | The name of the parameter or dot-separated path of parameter names pointing to the resource parameter that is expected to contain a reference to this resource.
Short | Referencing parameter
Comments | Note that FHIR strings SHALL NOT exceed 1MB in size
Control | 1..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
114. OperationDefinition.parameter.referencedFrom.sourceId
Definition | The id of the element in the referencing resource that is expected to resolve to this resource.
Short | Element id of reference
Comments | Note that FHIR strings SHALL NOT exceed 1MB in size
Control | 0..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
116. OperationDefinition.parameter.part
Definition | The parts of a nested Parameter.
Short | Parts of a nested Parameter
Comments | Query Definitions only have one output parameter, named "result". This might not be described, but can be to allow a profile to be defined.
Control | 0..* This element is affected by the following invariants: opd-1
Type | Seettp://hl7.org/fhir/StructureDefinition/OperationDefinition#OperationDefinition.parameter
118. OperationDefinition.overload
Definition | Defines an appropriate combination of parameters to use when invoking this operation, to help code generators when generating overloaded parameter sets for this operation.
Short | Define overloaded variants for when generating code
Comments | The combinations are suggestions as to which sets of parameters to use together, but the combinations are not intended to be authoritative.
Control | 0..* This element is affected by the following invariants: ele-1
Type | BackboneElement
Is Modifier | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
120. OperationDefinition.overload.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
122. OperationDefinition.overload.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.
Short | Additional 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-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()`)
Slicing | This element introduces a set of slices on `OperationDefinition.overload.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
124. OperationDefinition.overload.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).
Short | Extensions 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
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 Names | extensions, user content, modifiers
Invariants | ele-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()`)
126. OperationDefinition.overload.parameterName
Definition | Name of parameter to include in overload.
Short | Name of parameter to include in overload
Comments | Note that FHIR strings SHALL NOT exceed 1MB in size
Control | 0..*
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
128. OperationDefinition.overload.comment
Definition | Comments to go on overload.
Short | Comments to go on overload
Comments | Note that FHIR strings SHALL NOT exceed 1MB in size
Control | 0..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)