FHIR Chat · Binding using valueSetUri

Stream: implementers

Topic: Binding using valueSetUri

Richard Kavanagh (Jul 13 2018 at 13:49):

In STU3 you can bind elements using valueSetUri (as opposed to valueSetReference ). In R4 this is removed so that you can only use valueSetReference .

So for the use case where previously we "bound" to a URI such as http://acme.com/myCodesAreHere.html what do we do now. We seem to have two choices:

1) Not use a binding at all (after all http://acme.com/myCodesAreHere.html offers no computable benefit)
2) Craft a ValueSet to somehow use the URI

Option 1 is not desirable as we'd still like to know the URI, but not sure how to progress option 2

Have I missed something?

Vadim Peretokin (Jul 13 2018 at 13:58):

I don't think that ability was removed - it was just changed to a canonical datatype. You can still use a URI as before

Vadim Peretokin (Jul 13 2018 at 14:00):

It's valueSetReference that was, in a way, removed

Richard Kavanagh (Jul 13 2018 at 14:09):

hmm - reading http://build.fhir.org/references.html#canonical that does not appear to be the case

Lloyd McKenzie (Jul 13 2018 at 18:37):

In R4, we decided that the value sets always have to be FHIR value sets. It's the code system URI that might not resolve to a FHIR code system. The ability to point to a URL for a binding stems from before ValueSet and CodeSystem were split.