Stream: terminology
Topic: only one CodeSystem resource?
Yunwei Wang (Jan 08 2018 at 01:02):
The spec says "but there should only be one CodeSystem resource." Is that one per code system for the whole FHIR world or every terminology server?
Grahame Grieve (Jan 08 2018 at 01:03):
where does it say that?
Stefan Lang (Jan 08 2018 at 13:30):
@Grahame Grieve That's on https://www.hl7.org/fhir/namingsystem.html#4.10.2
The full context is: "there may be multiple authoritative NamingSystem resources for a code system, but there should only be one CodeSystem resource. "
Rob Hausam (Jan 08 2018 at 15:34):
I believe it was intended to say "but there should only be one authoritative CodeSystem resource" - i.e. the "source of truth" for the code system.
Yunwei Wang (Jan 08 2018 at 15:38):
It is also in here: http://hl7.org/fhir/2018Jan/codesystem.html#relationships
Yunwei Wang (Jan 08 2018 at 15:49):
@Rob Hausam I don't think that is necessary since the relationship context already states that "CodeSystem resources are managed by the owner of the code system resource, who can properly define the features and content of the code system." My understanding is that CodeSystem resource is always authoritative.
Michael Lawley (Jan 09 2018 at 03:34):
Ontoserver allows multiple CodeSystem resources in the case that they represent different (business) versions of the CodeSystem
Rob Hausam (Jan 09 2018 at 07:25):
Yes. CodeSystem resources are not always authoritative - they should be at least representative, but there may not an authoritative one directly under the control of the code system publisher.
Last updated: Apr 12 2022 at 19:14 UTC
