# EPA Medication PZN Ingredient - Implementation Guide ePA Medication Service v1.3.3

Implementation Guide

ePA Medication Service

Version 1.3.3 - release 

* [**Table of Contents**](toc.md)
* [**FHIR-Artefakte**](artifacts.md)
* **EPA Medication PZN Ingredient**

## Resource Profile: EPA Medication PZN Ingredient 

| | |
| :--- | :--- |
| *Official URL*:https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication-pzn-ingredient | *Version*:1.3.2 |
| Active as of 2026-03-20 | *Computable Name*:EPAMedicationPZNIngredient |
| **Copyright/Legal**: gematik GmbH / Dieses Artefakt ist lizenziert unter [Apache License](./license.md), Version 2.0. | |

 
Defines the medication resource for a PZN ingredient of a compounding medication for the Medication Service in the ePA system. These profiles are intended to inherit from EPAMedication, but due to tooling issues, this inheritance cannot currently be implemented. 

**Usages:**

* Use this Profile: [EPA Medication](StructureDefinition-epa-medication.md)
* CapabilityStatements using this Profile: [EPA Capability Statement für Clients des ePA Medication Service](CapabilityStatement-epa-medication-service-client.md) and [EPA CapabilityStatement für den Medication Service](CapabilityStatement-epa-medication-service-server.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/resource/de.gematik.epa.medication|current/StructureDefinition/StructureDefinition-epa-medication-pzn-ingredient.json)

### Formal Views of Profile Content

 [Description of Profiles, Differentials, Snapshots and how the different presentations work](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#structure-definitions). 

 

Other representations of profile: [CSV](StructureDefinition-epa-medication-pzn-ingredient.csv), [Excel](StructureDefinition-epa-medication-pzn-ingredient.xlsx), [Schematron](StructureDefinition-epa-medication-pzn-ingredient.sch) 



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "epa-medication-pzn-ingredient",
  "url" : "https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication-pzn-ingredient",
  "version" : "1.3.2",
  "name" : "EPAMedicationPZNIngredient",
  "title" : "EPA Medication PZN Ingredient",
  "status" : "active",
  "experimental" : false,
  "date" : "2026-03-20",
  "publisher" : "gematik GmbH",
  "contact" : [{
    "name" : "gematik GmbH",
    "telecom" : [{
      "system" : "url",
      "value" : "https://www.gematik.de"
    },
    {
      "system" : "email",
      "value" : "patientteam [ at ] gematik.de"
    }]
  }],
  "description" : "Defines the medication resource for a PZN ingredient of a compounding medication for the Medication Service in the ePA system. These profiles are intended to inherit from EPAMedication, but due to tooling issues, this inheritance cannot currently be implemented.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "urn:iso:std:iso:3166",
      "code" : "DE"
    }]
  }],
  "copyright" : "gematik GmbH / Dieses Artefakt ist lizenziert unter [Apache License](./license.html), Version 2.0.",
  "fhirVersion" : "4.0.1",
  "mapping" : [{
    "identity" : "script10.6",
    "uri" : "http://ncpdp.org/SCRIPT10_6",
    "name" : "Mapping to NCPDP SCRIPT 10.6"
  },
  {
    "identity" : "rim",
    "uri" : "http://hl7.org/v3",
    "name" : "RIM Mapping"
  },
  {
    "identity" : "w5",
    "uri" : "http://hl7.org/fhir/fivews",
    "name" : "FiveWs Pattern Mapping"
  },
  {
    "identity" : "v2",
    "uri" : "http://hl7.org/v2",
    "name" : "HL7 v2 Mapping"
  }],
  "kind" : "resource",
  "abstract" : false,
  "type" : "Medication",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Medication",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "id" : "Medication",
      "path" : "Medication",
      "constraint" : [{
        "key" : "epa-med-1",
        "severity" : "error",
        "human" : "Medication code, name, or ingredients must be specified",
        "expression" : "code.exists() or ingredient.exists()",
        "source" : "https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication-pzn-ingredient"
      }]
    },
    {
      "id" : "Medication.meta",
      "path" : "Medication.meta",
      "mustSupport" : true
    },
    {
      "id" : "Medication.meta.versionId",
      "path" : "Medication.meta.versionId",
      "mustSupport" : true
    },
    {
      "id" : "Medication.meta.lastUpdated",
      "path" : "Medication.meta.lastUpdated",
      "mustSupport" : true
    },
    {
      "id" : "Medication.contained",
      "path" : "Medication.contained",
      "max" : "0"
    },
    {
      "id" : "Medication.extension",
      "path" : "Medication.extension",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:rxPrescriptionProcessIdentifier",
      "path" : "Medication.extension",
      "sliceName" : "rxPrescriptionProcessIdentifier",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/rx-prescription-process-identifier-extension"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:isVaccine",
      "path" : "Medication.extension",
      "sliceName" : "isVaccine",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/medication-id-vaccine-extension"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:isVaccine.url",
      "path" : "Medication.extension.url",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:isVaccine.value[x]",
      "path" : "Medication.extension.value[x]",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:drugCategory",
      "path" : "Medication.extension",
      "sliceName" : "drugCategory",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/drug-category-extension"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:drugCategory.url",
      "path" : "Medication.extension.url",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:drugCategory.value[x]",
      "path" : "Medication.extension.value[x]",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:drugCategory.value[x].system",
      "path" : "Medication.extension.value[x].system",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:drugCategory.value[x].version",
      "path" : "Medication.extension.value[x].version",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:drugCategory.value[x].code",
      "path" : "Medication.extension.value[x].code",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:drugCategory.value[x].display",
      "path" : "Medication.extension.value[x].display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:normSizeCode",
      "path" : "Medication.extension",
      "sliceName" : "normSizeCode",
      "short" : "Package size according to N-designation",
      "definition" : "Description of the therapy-appropriate package size (e.g., N1)",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["http://fhir.de/StructureDefinition/normgroesse"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:normSizeCode.url",
      "path" : "Medication.extension.url",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:normSizeCode.value[x]",
      "path" : "Medication.extension.value[x]",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:packaging",
      "path" : "Medication.extension",
      "sliceName" : "packaging",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/medication-formulation-packaging-extension"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:packaging.url",
      "path" : "Medication.extension.url",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:packaging.value[x]",
      "path" : "Medication.extension.value[x]",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:manufacturingInstructions",
      "path" : "Medication.extension",
      "sliceName" : "manufacturingInstructions",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/medication-manufacturing-instructions-extension"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:manufacturingInstructions.url",
      "path" : "Medication.extension.url",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:manufacturingInstructions.value[x]",
      "path" : "Medication.extension.value[x]",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:type",
      "path" : "Medication.extension",
      "sliceName" : "type",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication-type-extension"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:type.url",
      "path" : "Medication.extension.url",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:type.value[x]",
      "path" : "Medication.extension.value[x]",
      "binding" : {
        "strength" : "required",
        "valueSet" : "https://gematik.de/fhir/terminology/ValueSet/ti-medication-type-product-vs"
      }
    },
    {
      "id" : "Medication.extension:type.value[x].system",
      "path" : "Medication.extension.value[x].system",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:type.value[x].version",
      "path" : "Medication.extension.value[x].version",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:type.value[x].code",
      "path" : "Medication.extension.value[x].code",
      "mustSupport" : true
    },
    {
      "id" : "Medication.extension:type.value[x].display",
      "path" : "Medication.extension.value[x].display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier",
      "path" : "Medication.identifier",
      "slicing" : {
        "discriminator" : [{
          "type" : "value",
          "path" : "$this"
        }],
        "rules" : "open"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:EPAMedicationUniqueIdentifier",
      "path" : "Medication.identifier",
      "sliceName" : "EPAMedicationUniqueIdentifier",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Identifier",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication-unique-identifier"]
      }],
      "patternIdentifier" : {
        "system" : "https://gematik.de/fhir/epa-medication/sid/epa-medication-unique-identifier"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:EPAMedicationUniqueIdentifier.type",
      "path" : "Medication.identifier.type",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:EPAMedicationUniqueIdentifier.type.coding",
      "path" : "Medication.identifier.type.coding",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:EPAMedicationUniqueIdentifier.type.coding.system",
      "path" : "Medication.identifier.type.coding.system",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:EPAMedicationUniqueIdentifier.type.coding.version",
      "path" : "Medication.identifier.type.coding.version",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:EPAMedicationUniqueIdentifier.type.coding.code",
      "path" : "Medication.identifier.type.coding.code",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:EPAMedicationUniqueIdentifier.type.coding.display",
      "path" : "Medication.identifier.type.coding.display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:RxOriginatorProcessIdentifier",
      "path" : "Medication.identifier",
      "sliceName" : "RxOriginatorProcessIdentifier",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Identifier",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/rx-originator-process-identifier"]
      }],
      "patternIdentifier" : {
        "system" : "https://gematik.de/fhir/epa-medication/sid/rx-originator-process-identifier"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:RxOriginatorProcessIdentifier.type",
      "path" : "Medication.identifier.type",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:RxOriginatorProcessIdentifier.type.coding",
      "path" : "Medication.identifier.type.coding",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:RxOriginatorProcessIdentifier.type.coding.system",
      "path" : "Medication.identifier.type.coding.system",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:RxOriginatorProcessIdentifier.type.coding.version",
      "path" : "Medication.identifier.type.coding.version",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:RxOriginatorProcessIdentifier.type.coding.code",
      "path" : "Medication.identifier.type.coding.code",
      "mustSupport" : true
    },
    {
      "id" : "Medication.identifier:RxOriginatorProcessIdentifier.type.coding.display",
      "path" : "Medication.identifier.type.coding.display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.code",
      "path" : "Medication.code",
      "short" : "Medication in coded form or as free text if necessary",
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding",
      "path" : "Medication.code.coding",
      "slicing" : {
        "discriminator" : [{
          "type" : "value",
          "path" : "$this"
        }],
        "rules" : "open"
      },
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:pzn",
      "path" : "Medication.code.coding",
      "sliceName" : "pzn",
      "min" : 1,
      "max" : "1",
      "patternCoding" : {
        "system" : "http://fhir.de/CodeSystem/ifa/pzn"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:pzn.system",
      "path" : "Medication.code.coding.system",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:pzn.version",
      "path" : "Medication.code.coding.version",
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:pzn.code",
      "path" : "Medication.code.coding.code",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:pzn.display",
      "path" : "Medication.code.coding.display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:atc-de",
      "path" : "Medication.code.coding",
      "sliceName" : "atc-de",
      "min" : 0,
      "max" : "*",
      "patternCoding" : {
        "system" : "http://fhir.de/CodeSystem/bfarm/atc"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:atc-de.system",
      "path" : "Medication.code.coding.system",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:atc-de.version",
      "path" : "Medication.code.coding.version",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:atc-de.code",
      "path" : "Medication.code.coding.code",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:atc-de.display",
      "path" : "Medication.code.coding.display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:ask",
      "path" : "Medication.code.coding",
      "sliceName" : "ask",
      "min" : 0,
      "max" : "*",
      "patternCoding" : {
        "system" : "http://fhir.de/CodeSystem/ask"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:ask.system",
      "path" : "Medication.code.coding.system",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:ask.version",
      "path" : "Medication.code.coding.version",
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:ask.code",
      "path" : "Medication.code.coding.code",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.coding:ask.display",
      "path" : "Medication.code.coding.display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.code.text",
      "path" : "Medication.code.text",
      "mustSupport" : true
    },
    {
      "id" : "Medication.status",
      "path" : "Medication.status",
      "short" : "Status of Medication Information",
      "mustSupport" : true
    },
    {
      "id" : "Medication.manufacturer",
      "path" : "Medication.manufacturer",
      "short" : "Manufacturer of the Medication",
      "comment" : "Here, the actual manufacturer of the medication can be named, primarily in the case of active ingredient mixtures (compounding prescriptions), such as the hospital pharmacy. It is important to note that the licensing organization, as mentioned in the PZN (Pharmaceutical Central Number) data, is not considered the manufacturer.",
      "mustSupport" : true
    },
    {
      "id" : "Medication.manufacturer.display",
      "path" : "Medication.manufacturer.display",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.form",
      "path" : "Medication.form",
      "short" : "Form of Dispensing",
      "mustSupport" : true
    },
    {
      "id" : "Medication.form.coding",
      "path" : "Medication.form.coding",
      "slicing" : {
        "discriminator" : [{
          "type" : "value",
          "path" : "$this"
        }],
        "rules" : "open"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.form.coding:kbvDarreichungsform",
      "path" : "Medication.form.coding",
      "sliceName" : "kbvDarreichungsform",
      "comment" : "KBV updates its \"Schüsseltabellen\" package more often than ePA versions get released. However, the eRezept clients and eRezept service take over new KBV package versions quickly after release and thus hands them over to the ePA Medication Service. Since the Medication Service is potentially fixed onto an older version of the KBV package, it would reject the forwarded eRezept data. In the future, the Medication Service will be enabled to update to the latest KBV package versions without the need for a new ePA release.\n    Since the eRezept *does* check the codes against the latest KBV package version, the Medication Service will not receive any \"invalid\" codes and clients can rely on the Medication Service data conforming to the latest KBV package.",
      "min" : 0,
      "max" : "*",
      "patternCoding" : {
        "system" : "https://fhir.kbv.de/CodeSystem/KBV_CS_SFHIR_KBV_DARREICHUNGSFORM"
      },
      "mustSupport" : true,
      "binding" : {
        "strength" : "required",
        "valueSet" : "https://fhir.kbv.de/ValueSet/KBV_VS_SFHIR_KBV_DARREICHUNGSFORM"
      }
    },
    {
      "id" : "Medication.form.coding:kbvDarreichungsform.system",
      "path" : "Medication.form.coding.system",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.form.coding:kbvDarreichungsform.version",
      "path" : "Medication.form.coding.version",
      "mustSupport" : true
    },
    {
      "id" : "Medication.form.coding:kbvDarreichungsform.code",
      "path" : "Medication.form.coding.code",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.form.coding:kbvDarreichungsform.display",
      "path" : "Medication.form.coding.display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount",
      "path" : "Medication.amount",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator",
      "path" : "Medication.amount.numerator",
      "mustSupport" : true,
      "binding" : {
        "strength" : "preferred",
        "valueSet" : "http://hl7.org/fhir/ValueSet/ucum-units"
      }
    },
    {
      "id" : "Medication.amount.numerator.extension",
      "path" : "Medication.amount.numerator.extension",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator.extension:packagingSize",
      "path" : "Medication.amount.numerator.extension",
      "sliceName" : "packagingSize",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/medication-packaging-size-extension"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator.extension:packagingSize.url",
      "path" : "Medication.amount.numerator.extension.url",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator.extension:packagingSize.value[x]",
      "path" : "Medication.amount.numerator.extension.value[x]",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator.extension:totalQuantity",
      "path" : "Medication.amount.numerator.extension",
      "sliceName" : "totalQuantity",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/medication-total-quantity-formulation-extension"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator.extension:totalQuantity.url",
      "path" : "Medication.amount.numerator.extension.url",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator.extension:totalQuantity.value[x]",
      "path" : "Medication.amount.numerator.extension.value[x]",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator.value",
      "path" : "Medication.amount.numerator.value",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator.unit",
      "path" : "Medication.amount.numerator.unit",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator.system",
      "path" : "Medication.amount.numerator.system",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.numerator.code",
      "path" : "Medication.amount.numerator.code",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.denominator",
      "path" : "Medication.amount.denominator",
      "mustSupport" : true,
      "binding" : {
        "strength" : "preferred",
        "valueSet" : "http://hl7.org/fhir/ValueSet/ucum-units"
      }
    },
    {
      "id" : "Medication.amount.denominator.value",
      "path" : "Medication.amount.denominator.value",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.denominator.unit",
      "path" : "Medication.amount.denominator.unit",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.denominator.system",
      "path" : "Medication.amount.denominator.system",
      "mustSupport" : true
    },
    {
      "id" : "Medication.amount.denominator.code",
      "path" : "Medication.amount.denominator.code",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient",
      "path" : "Medication.ingredient",
      "short" : "Active or inactive ingredients of the medication, including pharmaceutical substances as well as individual medicinal products in combination packs.",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.extension",
      "path" : "Medication.ingredient.extension",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.extension:darreichungsform",
      "path" : "Medication.ingredient.extension",
      "sliceName" : "darreichungsform",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/medication-ingredient-darreichungsform-extension"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.extension:darreichungsform.url",
      "path" : "Medication.ingredient.extension.url",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.extension:darreichungsform.value[x]",
      "path" : "Medication.ingredient.extension.value[x]",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]",
      "path" : "Medication.ingredient.item[x]",
      "slicing" : {
        "discriminator" : [{
          "type" : "type",
          "path" : "$this"
        }],
        "ordered" : false,
        "rules" : "open"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept",
      "path" : "Medication.ingredient.item[x]",
      "sliceName" : "itemCodeableConcept",
      "short" : "Encoded description of the substance or component.",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "CodeableConcept"
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding",
      "path" : "Medication.ingredient.item[x].coding",
      "slicing" : {
        "discriminator" : [{
          "type" : "value",
          "path" : "$this"
        }],
        "rules" : "open"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:ask",
      "path" : "Medication.ingredient.item[x].coding",
      "sliceName" : "ask",
      "min" : 0,
      "max" : "*",
      "patternCoding" : {
        "system" : "http://fhir.de/CodeSystem/ask"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:ask.system",
      "path" : "Medication.ingredient.item[x].coding.system",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:ask.version",
      "path" : "Medication.ingredient.item[x].coding.version",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:ask.code",
      "path" : "Medication.ingredient.item[x].coding.code",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:ask.display",
      "path" : "Medication.ingredient.item[x].coding.display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:atc-de",
      "path" : "Medication.ingredient.item[x].coding",
      "sliceName" : "atc-de",
      "min" : 0,
      "max" : "*",
      "patternCoding" : {
        "system" : "http://fhir.de/CodeSystem/bfarm/atc"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:atc-de.system",
      "path" : "Medication.ingredient.item[x].coding.system",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:atc-de.version",
      "path" : "Medication.ingredient.item[x].coding.version",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:atc-de.code",
      "path" : "Medication.ingredient.item[x].coding.code",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:atc-de.display",
      "path" : "Medication.ingredient.item[x].coding.display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:pzn",
      "path" : "Medication.ingredient.item[x].coding",
      "sliceName" : "pzn",
      "min" : 0,
      "max" : "*",
      "patternCoding" : {
        "system" : "http://fhir.de/CodeSystem/ifa/pzn"
      },
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:pzn.system",
      "path" : "Medication.ingredient.item[x].coding.system",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:pzn.version",
      "path" : "Medication.ingredient.item[x].coding.version",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:pzn.code",
      "path" : "Medication.ingredient.item[x].coding.code",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.coding:pzn.display",
      "path" : "Medication.ingredient.item[x].coding.display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemCodeableConcept.text",
      "path" : "Medication.ingredient.item[x].text",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference",
      "path" : "Medication.ingredient.item[x]",
      "sliceName" : "itemReference",
      "short" : "Medication Ingredients can't have child Medications",
      "min" : 0,
      "max" : "0",
      "type" : [{
        "code" : "Reference",
        "targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Medication"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.reference",
      "path" : "Medication.ingredient.item[x].reference",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.identifier",
      "path" : "Medication.ingredient.item[x].identifier",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.identifier.type",
      "path" : "Medication.ingredient.item[x].identifier.type",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.identifier.type.coding",
      "path" : "Medication.ingredient.item[x].identifier.type.coding",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.identifier.type.coding.system",
      "path" : "Medication.ingredient.item[x].identifier.type.coding.system",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.identifier.type.coding.version",
      "path" : "Medication.ingredient.item[x].identifier.type.coding.version",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.identifier.type.coding.code",
      "path" : "Medication.ingredient.item[x].identifier.type.coding.code",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.identifier.type.coding.display",
      "path" : "Medication.ingredient.item[x].identifier.type.coding.display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.identifier.system",
      "path" : "Medication.ingredient.item[x].identifier.system",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.identifier.value",
      "path" : "Medication.ingredient.item[x].identifier.value",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.item[x]:itemReference.display",
      "path" : "Medication.ingredient.item[x].display",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.isActive",
      "path" : "Medication.ingredient.isActive",
      "short" : "Is it an active ingredient?",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength",
      "path" : "Medication.ingredient.strength",
      "short" : "Strength",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength.extension:amountText",
      "path" : "Medication.ingredient.strength.extension",
      "sliceName" : "amountText",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "Extension",
        "profile" : ["https://gematik.de/fhir/epa-medication/StructureDefinition/medication-ingredient-amount-extension"]
      }]
    },
    {
      "id" : "Medication.ingredient.strength.extension:amountText.url",
      "path" : "Medication.ingredient.strength.extension.url",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength.extension:amountText.value[x]",
      "path" : "Medication.ingredient.strength.extension.value[x]",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength.numerator",
      "path" : "Medication.ingredient.strength.numerator",
      "mustSupport" : true,
      "binding" : {
        "strength" : "preferred",
        "valueSet" : "http://hl7.org/fhir/ValueSet/ucum-units"
      }
    },
    {
      "id" : "Medication.ingredient.strength.numerator.value",
      "path" : "Medication.ingredient.strength.numerator.value",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength.numerator.unit",
      "path" : "Medication.ingredient.strength.numerator.unit",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength.numerator.system",
      "path" : "Medication.ingredient.strength.numerator.system",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength.numerator.code",
      "path" : "Medication.ingredient.strength.numerator.code",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength.denominator",
      "path" : "Medication.ingredient.strength.denominator",
      "mustSupport" : true,
      "binding" : {
        "strength" : "preferred",
        "valueSet" : "http://hl7.org/fhir/ValueSet/ucum-units"
      }
    },
    {
      "id" : "Medication.ingredient.strength.denominator.value",
      "path" : "Medication.ingredient.strength.denominator.value",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength.denominator.unit",
      "path" : "Medication.ingredient.strength.denominator.unit",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength.denominator.system",
      "path" : "Medication.ingredient.strength.denominator.system",
      "mustSupport" : true
    },
    {
      "id" : "Medication.ingredient.strength.denominator.code",
      "path" : "Medication.ingredient.strength.denominator.code",
      "mustSupport" : true
    },
    {
      "id" : "Medication.batch",
      "path" : "Medication.batch",
      "short" : "Batch Information",
      "mustSupport" : true
    },
    {
      "id" : "Medication.batch.lotNumber",
      "path" : "Medication.batch.lotNumber",
      "short" : "Batch Number",
      "mustSupport" : true
    }]
  }
}

```
