Stream: implementers
Topic: ValueSet - Resource Content
Peter Bernhardt (Apr 05 2016 at 16:51):
Reviewing the STU 3 update to ValueSet. I don't see where CodeSystem is used in the structure documentation: http://hl7.org/fhir/2016May/valueset.html
Pascal Pfiffner (Apr 06 2016 at 11:45):
Looks like the text still refers to ValueSet.codeSystem and does not link to the new CodeSystem resource. Is that what you mean?
http://hl7.org/fhir/2016May/codesystem.html
Peter Bernhardt (Apr 06 2016 at 21:34):
Yes
Grahame Grieve (Apr 07 2016 at 21:40):
I didn't have time to complete the documentation updates for changing code system. hell, I only just get the terminology base valid before publishing the freeze. I'm hoping to work on the documentation updates in the nexts few weeks, but a task to remind me wouldn't be a bad idea
Andrew Ross (Apr 13 2016 at 15:01):
interesting in sticking a finger in the wind -- do folks here think it's ok to rely on the order of codes in a ValueSet for display purposes?
Andrew Ross (Apr 13 2016 at 15:03):
e.g. if we were doing a value set of ECOG performance status, which could range from 0-5, and we want the values to be ordered 0, 1, 2, 3, 4, 5 in a user interface, is it ok for us to accomplish that just by reading from our value set (which we know is ordered in that way) -- or is a ValueSet inherently unorderable, and we shouldn't rely on that fact?
Andrew Ross (Apr 13 2016 at 15:13):
https://www.hl7.org/fhir/valueset.html#expansion seems to imply there is a deterministic order even when ValueSets are composed of multiple others
Andrew Ross (Apr 13 2016 at 15:14):
even if the order isn't necessarily meaningful
Lloyd McKenzie (Apr 13 2016 at 15:21):
There's an extension that allows you to assert order. Other than that, order of rendering is up to you. Certainly listing codes in order of appearance is reasonable, but when you start applying filters and unioning in imported value sets, you can't really rely on a specific order being consistent across different systems that render the data
Andrew Ross (Apr 13 2016 at 15:33):
cool, that makes sense and is about what we figured.
Last updated: Apr 12 2022 at 19:14 UTC
