<status value="active" /> <publisher value="NHS Wales" /> <contact> <name value="Data Standards" /> <telecom> <system value="email" /> <value value="data.standards@wales.nhs.uk" /> <use value="work" /> </telecom> </contact> <description value="A profile that defines a MessageHeader structure used for PSOM messaging." /> <copyright value="© 2023 NHS Wales." /> <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" /> <constraint> <key value="PSOM-MessageHeader-01" /> <severity value="error" /> <human value="All exception response messages must include a fully specified response (including an OperationOutcome that contains the issue details)." /> <expression value="event.code = 'exception-response' implies (response.details.exists())" /> </constraint> </element> <element id="MessageHeader.event[x]"> <path value="MessageHeader.event[x]" /> <type> <code value="Coding" /> </type> <condition value="PSOM-MessageHeader-01" /> <binding> <strength value="required" /> <description value="PSOM message events" /> <valueSet value="https://fhir.nhs.wales/ValueSet/DataStandardsWales-PSOM-MessageEvent" /> </binding> </element> <element id="MessageHeader.response"> <path value="MessageHeader.response" /> <condition value="PSOM-MessageHeader-01" /> </element> <element id="MessageHeader.response.identifier"> <path value="MessageHeader.response.identifier" /> <comment value="This value should be the `MessageHeader.id` of the original message, i.e. a business identifier. See http://hl7.org/fhir/R4/messageheader-definitions.html#MessageHeader.response.identifier for more information." /> </element> <element id="MessageHeader.response.details"> <path value="MessageHeader.response.details" /> <condition value="PSOM-MessageHeader-01" /> </element> <element id="MessageHeader.focus"> <path value="MessageHeader.focus" /> <type> <code value="Reference" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-PSOM-CarePlan" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-PSOM-Task" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Patient" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-PSOM-QuestionnaireResponse" /> </type> </element> <element id="MessageHeader.definition"> <path value="MessageHeader.definition" /> <type> <code value="canonical" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-PSOM-MessageDefinition" /> </type> </element> </differential> </StructureDefinition>