<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 locally-produced identifier which uniquely identifies the referral record. All PROMs questionnaires associated with the same referral must have the same Referral Identifier." /> <copyright value="© 2023 NHS Wales." /> <fhirVersion value="4.0.1" /> <mapping> <identity value="PROMs-Metadata-2024004" /> <name value="NHS Wales DSCN Metadata Mapping" /> </mapping> <kind value="complex-type" /> <abstract value="false" /> <type value="Identifier" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Identifier" /> <derivation value="constraint" /> <differential> <element id="Identifier.system"> <path value="Identifier.system" /> <short value="Referral Identifier Origination" /> <definition value="The issuing system's OID for the Referral Identifier." /> <constraint> <key value="PSOM-ReferralIdentifier-01" /> <severity value="error" /> <human value="The issuing system should be an ApplicationInstanceOID that starts with the '2.16.840.1.113883.2.1.8.1.5.' sequence." /> <expression value="startsWith('urn:oid:2.16.840.1.113883.2.1.8.1.5.')" /> </constraint> <mapping> <identity value="PROMs-Metadata-2024004" /> <map value="MPRPX004A" /> <comment value="Referral Identifier Origination" /> </mapping> </element> <element id="Identifier.value"> <path value="Identifier.value" /> <short value="Referral Identifier" /> <definition value="A locally-produced identifier which uniquely identifies the referral record. All PROMs questionnaires associated with the same referral must have the same Referral Identifier." /> <min value="1" /> <mapping> <identity value="PROMs-Metadata-2024004" /> <map value="MPRPX004X" /> <comment value="Referral Identifier" /> </mapping> </element> </differential> </StructureDefinition>