Stream: terminology
Topic: How to create a concept property for grouping properties
Lin Zhang (Oct 09 2021 at 09:10):
How to create a concept property for grouping other concept properties?
Lin Zhang (Oct 09 2021 at 09:14):
In other words, how to create a property group for a concept?
Michael Lawley (Oct 09 2021 at 09:16):
There is no way to express this in a CodeSystem
Lin Zhang (Oct 09 2021 at 09:16):
OR could a concept property have nested properties?
Michael Lawley (Oct 09 2021 at 09:17):
It is supported by lookup because snomed does it, but that comes from their native format
Lin Zhang (Oct 09 2021 at 09:17):
@Michael Lawley Thanks
Lin Zhang (Oct 09 2021 at 09:17):
Yes, you're right.
Lin Zhang (Oct 09 2021 at 09:18):
I know SCT has this feature
Lin Zhang (Oct 09 2021 at 09:21):
But I'm wondering how it is represented in the FHIR CS structure.
Michael Lawley (Oct 09 2021 at 09:27):
It isn't :)
Michael Lawley (Oct 09 2021 at 09:28):
It is not the goal of the FHIR CS structure to be able to represent all things that code systems do. This is one that got left out.
Michael Lawley (Oct 09 2021 at 09:28):
However we are about to look at designing an extension to allow this (for another code system)
Lin Zhang (Oct 09 2021 at 09:29):
Alright, but it's a pity. Love to see that :big_smile:
Michael Lawley (Oct 10 2021 at 03:03):
What is your use case? Ours is ingredient strength for medication codes
Lin Zhang (Oct 12 2021 at 08:05):
The International Standard Industrial Classification of All Economic Activities (ISIC) is provided by Statistics Division, United Nations' Department of Economic and Social Affairs
https://unstats.un.org/unsd/classifications/Econ/isic
There are inclusions and/or exclusions for a ISIC's code.
And our national Industrial Classification Standard is based on ISIC.
I want to represent such inclusions and/or exclusions in the FHIR CodeSystem resource.
Lin Zhang (Oct 12 2021 at 08:14):
But there may be subgroup(s) in these inclusions, like sublists.
Lin Zhang (Oct 12 2021 at 08:55):
Example code:
https://unstats.un.org/unsd/classifications/Econ/Structure/Detail/EN/27/0113
Lin Zhang (Oct 12 2021 at 09:01):
Another example code:
https://unstats.un.org/unsd/classifications/Econ/Structure/Detail/EN/27/2220
Michael Lawley (Oct 12 2021 at 09:20):
Thanks @Lin Zhang . Looking at those pages, the lists of inclusions and exclusions look more like CodeSystem.concept.definition than properties per-se. Personally, I think properties are mostly (only) really useful if their contents are machine-usable (eg for ValueSet definition or by clients using $lookup).
Lin Zhang (Oct 12 2021 at 09:44):
I agree.
Last updated: Apr 12 2022 at 19:14 UTC
