Stream: terminology
Topic: ValueSets filtering qualifiers
Grahame Grieve (Sep 29 2018 at 21:06):
@Carol Macumber, quoting from GF#18712:
The Value Set Definition standard slated to go normative contains as set of elements that allow filtering of qualifiers. There does not appear to be a way in FHIR to restrict qualifiers. Is that correct?
What does 'restricting qualifiers' mean?
Lloyd McKenzie (Sep 29 2018 at 21:17):
In v3, a valueset could say "Snomed procedure codes; must specify body site which must be lungs or specialize; can specify laterality which must be left or right; cannot include reason; must express in post coordinated form". We didn't bring any of that capability/complexity into FHIR because it's well outside the 80%. If anyone ever wants to do it "for real", we can define standard extensions. I've never seen anyone do it in v3.
Grahame Grieve (Sep 29 2018 at 21:31):
actually, we define that for SCT, not as a general thing. You can say all that using ECL
Grahame Grieve (Oct 01 2018 at 16:02):
ping @Carol Macumber
Carol Macumber (Oct 01 2018 at 17:56):
Apologies, discussing this one hopefully in Q3 today.
Grahame Grieve (Oct 01 2018 at 17:56):
great
Carol Macumber (Oct 01 2018 at 18:59):
AllowedQualifiers in VSD comes from the MIF. Which we understand to subset the allowed qualifiers in the CLD. VSD and MIF are both cross system query focused, where FHIR is structured where qualifiers are code system specific. Vocab is having a hard time coming up with an example where AllowedQualifiers has been applied. @Lloyd McKenzie do you have one? Sans a concrete example, we'll agree the question requires no further action
Grahame Grieve (Oct 01 2018 at 19:38):
we have a use for it in SCT in Australia in CDA documents. But we are using ECL in FHIR
Lloyd McKenzie (Oct 01 2018 at 19:57):
To my knowledge, HL7 hasn't ever defined a value set in v3 that constrained qualifiers. ECL meets the need if anyone needs to do this
Last updated: Apr 12 2022 at 19:14 UTC
