<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://medikit.nl/fhir/StructureDefinition/aidbox-legacy-fce/Address._line/unitID" />
  <name value="unitID" />
  <status value="active" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Address._line" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <extension url="http://fhir.aidbox.app/fhir/StructureDefinition/legacy-fce">
        <valueString value="unitID" />
      </extension>
      <path value="Extension" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <min value="1" />
      <max value="1" />
      <fixedUrl value="http://hl7.org/fhir/StructureDefinition/iso21090-ADXP-unitID" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="string" />
      </type>
    </element>
  </differential>
</StructureDefinition>