<StructureDefinition xmlns="http://hl7.org/fhir">
  <meta />
  <url value="https://4.example.com/StructureDefinition/CarePlan-ref" />
  <name value="CarePlan-ref" />
  <status value="draft" />
  <date value="2018-03-15T10:49:49.792+01:00" />
  <fhirVersion value="3.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <contextType value="resource" />
  <context value="MedicationAdministration" />
  <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://4.example.com/StructureDefinition/CarePlan-ref" />
    </element>
    <element id="Extension.valueReference:valueReference">
      <path value="Extension.valueReference" />
      <sliceName value="valueReference" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://hl7.org/fhir/StructureDefinition/CarePlan" />
      </type>
    </element>
    <element id="Extension.valueReference:valueReference.reference">
      <path value="Extension.valueReference.reference" />
      <min value="1" />
    </element>
  </differential>
</StructureDefinition>