The FHIR specification has an incomplete canonical CodeSystem resource at https://www.hl7.org/fhir/codesystem-snomedct.html
This is something SNOMED International should really take ownership of, complete it, host it and keep it up to date...but obviously this group can help with all of that (except the hosting!).
I've included a table below which indicates the elements and their values in the current resource. The other thing to consider is the HTML rendering and what it should say, the current one you can see at https://www.hl7.org/fhir/codesystem-snomedct.html is in the current resource as generated text from the resource.
Ideally this should be hosted at http://snomed.info/sct and behave as a proper FHIR endpoint (e.g. respond appropriately to JSON and XML accept headers).
Please comment on the appropriateness of the current values and suggested changes.
Element | Value | |||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
id | snomedct | |||||||||||||||||||||||||||||||||||||||||
url | http://snomed.info/sct | |||||||||||||||||||||||||||||||||||||||||
identifier |
| |||||||||||||||||||||||||||||||||||||||||
name | SNOMED CT | |||||||||||||||||||||||||||||||||||||||||
title | SNOMED CT (all versions) | |||||||||||||||||||||||||||||||||||||||||
status | active | |||||||||||||||||||||||||||||||||||||||||
experimental | false | |||||||||||||||||||||||||||||||||||||||||
publisher | IHTSDO | |||||||||||||||||||||||||||||||||||||||||
contact |
| |||||||||||||||||||||||||||||||||||||||||
description | SNOMED CT is the most comprehensive and precise clinical health terminology product in the world, owned and distributed around the world by The International Health Terminology Standards Development Organisation (IHTSDO). | |||||||||||||||||||||||||||||||||||||||||
copyright | © 2002-2016 International Health Terminology Standards Development Organisation (IHTSDO). All rights reserved. SNOMED CT®, was originally created by The College of American Pathologists. "SNOMED" and "SNOMED CT" are registered trademarks of the IHTSDO http://www.ihtsdo.org/snomed-ct/get-snomed-ct | |||||||||||||||||||||||||||||||||||||||||
caseSensitive | false | |||||||||||||||||||||||||||||||||||||||||
hierarchyMeaning | is-a | |||||||||||||||||||||||||||||||||||||||||
compositional | true | |||||||||||||||||||||||||||||||||||||||||
versionNeeded | false | |||||||||||||||||||||||||||||||||||||||||
content | not-present | |||||||||||||||||||||||||||||||||||||||||
filter |
| |||||||||||||||||||||||||||||||||||||||||
property |
There is also listed the attributes used in SNOMED CT, a couple of examples to express the pattern are
|
Additional elements worth considering populating are
- date - date of last change to the resource
- purpose - why is this code system defined
- valueSet - Canonical URL for the value set with the entire code system
Another thing to consider is whether the valueSet, if it can exist, if theoretically expanded would return all of SNOMED CT International Edition or the SNOMED CT "Universal" Edition