<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="Observation" />
  <url value="https://fhir.centraxx.de/StructureDefinition/Histology" />
  <version value="2025.4.0" />
  <name value="Histology" />
  <status value="active" />
  <publisher value="Kairos an IQVIA business" />
  <description value="Represents a CentraXX Histology." />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation.meta">
      <path value="Observation.meta" />
      <min value="0" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.meta.profile">
      <path value="Observation.meta.profile" />
      <min value="1" />
      <max value="1" />
      <fixedCanonical value="https://fhir.centraxx.de/StructureDefinition/histology" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.meta.tag">
      <path value="Observation.meta.tag" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.meta.tag.system">
      <path value="Observation.meta.tag.system" />
      <min value="1" />
      <max value="1" />
      <fixedString value="https://fhir.centraxx.de/system/cxxEntity" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.meta.tag.code">
      <path value="Observation.meta.tag.code" />
      <min value="1" />
      <max value="1" />
      <fixedString value="Histology" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.extension">
      <path value="Observation.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="closed" />
      </slicing>
      <min value="0" />
      <max value="2" />
      <type>
        <code value="Extension" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.extension:updateWithOverwrite">
      <path value="Observation.extension" />
      <sliceName value="updateWithOverwrite" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="https://fhir.centraxx.de/extension/updateWithOverwrite" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.extension:sourceDict">
      <path value="Observation.extension" />
      <sliceName value="sourceDict" />
      <type>
        <code value="Extension" />
        <profile value="https://fhir.centraxx.de/extension/histology/sourceDict" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.identifier">
      <path value="Observation.identifier" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="system" />
        </discriminator>
        <rules value="closed" />
      </slicing>
      <min value="0" />
      <max value="3" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.identifier:histologyId">
      <path value="Observation.identifier" />
      <sliceName value="histologyId" />
      <min value="0" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.identifier:histologyId.system">
      <path value="Observation.identifier.system" />
      <min value="1" />
      <max value="1" />
      <fixedString value="https://fhir.centraxx.de/system/histology/histologyId" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.identifier:histologyId.value">
      <path value="Observation.identifier.value" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.identifier:cxxHistologyId">
      <path value="Observation.identifier" />
      <sliceName value="cxxHistologyId" />
      <min value="0" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.identifier:cxxHistologyId.system">
      <path value="Observation.identifier.system" />
      <min value="1" />
      <max value="1" />
      <fixedString value="https://fhir.centraxx.de/system/histology/cxxHistologyId" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.identifier:cxxHistologyId.value">
      <path value="Observation.identifier.value" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.identifier:xmlId">
      <path value="Observation.identifier" />
      <sliceName value="xmlId" />
      <min value="0" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.identifier:xmlId.system">
      <path value="Observation.identifier.system" />
      <min value="1" />
      <max value="1" />
      <fixedString value="https://fhir.centraxx.de/system/histology/xmlId" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.identifier:xmlId.value">
      <path value="Observation.identifier.value" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.status">
      <path value="Observation.status" />
      <fixedCode value="final" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.code">
      <path value="Observation.code" />
      <patternCodeableConcept>
        <coding>
          <system value="http://loinc.org" />
          <code value="22036-8" />
        </coding>
      </patternCodeableConcept>
      <mustSupport value="true" />
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.centraxx.de/StructureDefinition/Patient" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.focus">
      <path value="Observation.focus" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.centraxx.de/StructureDefinition/Tumor" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.encounter">
      <path value="Observation.encounter" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.centraxx.de/StructureDefinition/Encounter" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.effective[x]">
      <path value="Observation.effective[x]" />
      <comment value="Represents Histology date" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="dateTime" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.issued">
      <path value="Observation.issued" />
      <comment value="CXX creation date" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x]">
      <path value="Observation.value[x]" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x].coding">
      <path value="Observation.value[x].coding" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x].coding.system">
      <path value="Observation.value[x].coding.system" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x].coding.version">
      <path value="Observation.value[x].coding.version" />
      <min value="0" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x].coding.code">
      <path value="Observation.value[x].coding.code" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x].coding.display">
      <path value="Observation.value[x].coding.display" />
      <min value="0" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.note">
      <path value="Observation.note" />
      <min value="0" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.note.text">
      <path value="Observation.note.text" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.hasMember">
      <path value="Observation.hasMember" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.centraxx.de/StructureDefinition/Progress" />
      </type>
      <mustSupport value="true" />
    </element>
  </differential>
</StructureDefinition>