<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="epa-medication-prescription-link-task" />
  <url value="https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication-prescription-link-task" />
  <version value="1.1.1" />
  <name value="EPAMedicationPrescriptionLinkTask" />
  <title value="EPA MedicationPrescription Link Task" />
  <status value="active" />
  <experimental value="false" />
  <date value="2024-08-14" />
  <publisher value="gematik GmbH" />
  <description value="This profile defines a specialized structure for FHIR Task resources aimed at establishing a link between medication information and associated medication prescriptions. It facilitates the efficient organization and tracking of medication processes within Medication Service of the ePA system." />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Task" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Task" />
  <derivation value="constraint" />
  <differential>
    <element id="Task.status">
      <path value="Task.status" />
      <short value="Status of Medication Prescription Link Task" />
      <mustSupport value="true" />
    </element>
    <element id="Task.intent">
      <path value="Task.intent" />
      <short value="order" />
      <definition value="The 'order' code should be used here." />
      <patternCode value="order" />
      <mustSupport value="true" />
    </element>
    <element id="Task.authoredOn">
      <path value="Task.authoredOn" />
      <mustSupport value="true" />
    </element>
    <element id="Task.requester">
      <path value="Task.requester" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Practitioner" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/PractitionerRole" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Task.input">
      <path value="Task.input" />
      <slicing>
        <discriminator>
          <type value="pattern" />
          <path value="type" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <short value="..." />
      <min value="2" />
      <max value="2" />
      <mustSupport value="true" />
    </element>
    <element id="Task.input:prescription">
      <path value="Task.input" />
      <sliceName value="prescription" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Task.input:prescription.type">
      <path value="Task.input.type" />
      <patternCodeableConcept>
        <coding>
          <system value="https://gematik.de/fhir/terminology/CodeSystem/epa-medication-task-label-cs" />
          <code value="PRESCIPTION" />
        </coding>
      </patternCodeableConcept>
      <mustSupport value="true" />
    </element>
    <element id="Task.input:prescription.value[x]">
      <path value="Task.input.value[x]" />
      <type>
        <code value="Identifier" />
        <profile value="https://gematik.de/fhir/epa-medication/StructureDefinition/rx-prescription-process-identifier" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Task.input:statement">
      <path value="Task.input" />
      <sliceName value="statement" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Task.input:statement.type">
      <path value="Task.input.type" />
      <patternCodeableConcept>
        <coding>
          <system value="https://gematik.de/fhir/terminology/CodeSystem/epa-medication-task-label-cs" />
          <code value="MEDICATIONSTATEMENT" />
        </coding>
      </patternCodeableConcept>
      <mustSupport value="true" />
    </element>
    <element id="Task.input:statement.value[x]">
      <path value="Task.input.value[x]" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/MedicationStatement" />
      </type>
      <mustSupport value="true" />
    </element>
  </differential>
</StructureDefinition>