<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://example.org/fhir/StructureDefinition/ReferenceWithComment" />
  <name value="ReferenceWithComment" />
  <status value="draft" />
  <date value="2024-03-21T12:49:46.7657646+00:00" />
  <fhirVersion value="3.0.2" />
  <kind value="complex-type" />
  <abstract value="false" />
  <contextType value="resource" />
  <context value="*" />
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="https://example.org/fhir/StructureDefinition/ReferenceWithComment" />
    </element>
    <element id="Extension.url.extension:comment">
      <path value="Extension.url.extension" />
      <sliceName value="comment" />
      <type>
        <code value="Extension" />
        <profile value="http://nictiz.nl/fhir/StructureDefinition/Comment" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Extension.value[x]:valueReference">
      <path value="Extension.valueReference" />
      <sliceName value="valueReference" />
      <type>
        <code value="Reference" />
      </type>
    </element>
  </differential>
</StructureDefinition>