<status value="draft" /> <date value="2021-10-14T09:21:14.2897726+00:00" /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <context> <type value="element" /> <expression value="Patient" /> </context> <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://gurke.com/fhir/StructureDefinition/MyExtension" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <type> <code value="CodeableConcept" /> </type> <binding> <strength value="required" /> <valueSet value="http://fhir.ufp/ValueSet/species" /> </binding> </element> </differential> </StructureDefinition>