For some information flows, there is a requirement to identify which UK Core profile(s) an instance being exchanged between healthcare IT systems conforms to. This could be for the purpose of validation of the instance against the profile definition and/or for conformance testing. This profile conformance is declared using the profile.meta element. The element carries the profile URL appended with the version information.
The format is: 'URL' "|" 'version' For example:
https://fhir.nhs.uk/R4/StructureDefinition/UKCore-RelatedPerson|1.1.0
This is illustrated below:
<RelatedPerson xmlns="http://hl7.org/fhir"> <id value="RP123" /> <meta> <profile value="https://fhir.hl7.org.uk/StructureDefinition/UKCore-RelatedPerson|1.1.0" /> </meta>
see HL7 - Record Versions vs Business Versions vs FHIR Versions