After some feedback. I’m working on two FHIR Messaging interfaces, they are influenced by HL7v2 messages (and HL7v3 for prescriptions).
Links to the definitions
Unsolicited Observations - Pathology
Is this the way to go? It’s keeping messaging alive and not using the more modern restful but it’s practical especially for sending data outside of an organisation (all the resources are bundled together)
Have also started to look at mapping HL7v2 PV1 to FHIR Encounter. Digital Medicines Implementation Guide This is very basic and intent is to align with HL7.FHIR.UV.V2-TOFHIR\Message Maps - FHIR v4.0.1
(Note: links are subject to change, shown for illustration and do not indicate a definite path)