<status value="active" /> <fhirVersion value="4.0.1" /> <kind value="resource" /> <abstract value="false" /> <type value="MessageHeader" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/MessageHeader" /> <derivation value="constraint" /> <differential> <element id="MessageHeader"> <path value="MessageHeader" /> </element> <element id="MessageHeader.meta.profile.value"> <path value="MessageHeader.meta.profile.value" /> <fixedUri value="https://fhir.eqcare.com/StructureDefinition/eq-event-message-header" /> <binding> <strength value="required" /> </binding> </element> <element id="MessageHeader.event[x]"> <path value="MessageHeader.event[x]" /> <type> <code value="Coding" /> </type> </element> <element id="MessageHeader.source.endpoint"> <path value="MessageHeader.source.endpoint" /> <constraint> <key value="ele-1" /> <severity value="warning" /> <human value="MessageHeader.source.endpoint must be https://api.eqcare.com/" /> <expression value="https://api.eqcare.com/ in MessageHeader.source.endpoint" /> </constraint> </element> <element id="MessageHeader.focus"> <path value="MessageHeader.focus" /> <max value="2" /> </element> <element id="MessageHeader.focus.reference"> <path value="MessageHeader.focus.reference" /> <min value="1" /> </element> <element id="MessageHeader.event[x].system"> <path value="MessageHeader.event[x].system" /> <min value="1" /> <fixedUri value="https://fhir.eqcare.com/CodeSystem/eq-event-code" /> <binding> <strength value="required" /> </binding> </element> <element id="MessageHeader.event[x].code"> <path value="MessageHeader.event[x].code" /> <min value="1" /> </element> </differential> </StructureDefinition>