<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://example.org/fhir/StructureDefinition/MyExtension_Dokumentationstid" />
  <name value="MyExtension_Dokumentationstid" />
  <status value="draft" />
  <fhirVersion value="3.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <contextType value="resource" />
  <context value="Observation.issued" />
  <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="http://example.org/fhir/StructureDefinition/MyExtension_Dokumentationstid" />
    </element>
    <element id="Extension.value[x]:valueDateTime">
      <path value="Extension.valueDateTime" />
      <sliceName value="valueDateTime" />
      <label value="Dokumentationstidpunkt" />
      <short value="Tidpunkt för observation" />
      <min value="1" />
      <type>
        <code value="dateTime" />
      </type>
    </element>
  </differential>
</StructureDefinition>