<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://example.org/fhir/StructureDefinition/TNM-Klassifizierung" />
  <name value="TNM-Klassifizierung" />
  <status value="draft" />
  <fhirVersion value="3.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation.extension">
      <path value="Observation.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Observation.extension:Datum">
      <path value="Observation.extension" />
      <sliceName value="Datum" />
      <definition value="Zeit und Datum, wann die TNM-Klassifizierung vorgenommen wurde." />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://example.org/fhir/StructureDefinition/DatumZeit" />
      </type>
    </element>
    <element id="Observation.extension:Datum.value[x]:valueDate">
      <path value="Observation.extension.valueDate" />
      <sliceName value="valueDate" />
      <type>
        <code value="date" />
      </type>
    </element>
    <element id="Observation.extension:Zeit">
      <path value="Observation.extension" />
      <sliceName value="Zeit" />
      <type>
        <code value="Extension" />
        <profile value="http://example.org/fhir/StructureDefinition/Zeit_Observation" />
      </type>
    </element>
    <element id="Observation.extension:Zeit.value[x]:valueDateTime">
      <path value="Observation.extension.valueDateTime" />
      <sliceName value="valueDateTime" />
      <type>
        <code value="dateTime" />
      </type>
    </element>
    <element id="Observation.identifier">
      <path value="Observation.identifier" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Observation.category.coding.code">
      <path value="Observation.category.coding.code" />
      <code>
        <system value="http://snomed.info/sct" />
        <version value="SNOMED CT International Edition" />
        <code value="722492002" />
        <display value="Postoperative procedure (procedure)" />
      </code>
      <code>
        <system value="http://snomed.info/sct" />
        <version value="SNOMED CT International Edition" />
        <code value="29458008" />
        <display value="Pathologic (qualifier value)" />
      </code>
    </element>
    <element id="Observation.code">
      <path value="Observation.code" />
      <code>
        <system value="http://snomed.info/sct" />
        <version value="SNOMED CT International Edition" />
        <code value="399566009" />
        <display value="Tumor-node-metastasis (TNM) category (observable entity)" />
      </code>
    </element>
  </differential>
</StructureDefinition>