Clever Geek Handbook

OID HL7 and URI FHIR

I am new to Level 7 standards and messaging paradigm and am reading on OIDS / URIs. While I know that OIDs are unique identifiers assigned according to the designating authority, I would like to know the following:

  • If there is any difference in their usage for V2 and V3 messages.
  • Whatis really sent over the wire using the OID?
  • Why is there a switch from OID to URI in the context of the new FHIR HL7 standard?

Any help is appreciated.

thank

+3


source to share


2 answers


I have put together a detailed document that discusses the rationale for the changes, as well as some strategies to address mapping issues between OIDs and meaningful URIs. A small part of it is specific to Canada, but most of it has general applicability. See here



+4


source


FHIR tries to move away from OID because of human readability:

The developers strongly prefer a user-readable URI. http://acme.com/patients/mrn is much easier to work with than urn: oid: 1.2.3.4.5.6.7



This text from the spec also answers your second question about representation. You are using a construct urn:oid:

in these places, so the OID is represented as a URI.

Please see https://www.hl7.org/fhir/terminologies.html for more information and https://www.hl7.org/fhir/terminologies-systems.html and https://www.hl7.org /fhir/identifier-registry.html for a list of systems and their representation.

+3


source






More articles:


All Articles