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Date

20:00 UTC on Tuesday 24 March 2020 - 90 minutes.   

Objectives

  • FHIR Terminology Services and Resources

Meeting Details

Onlinehttps://snomed.zoom.us/my/snomedhl7

Phone: See https://zoom.us/zoomconference for available phone numbers (meeting id 242-348-6949)

Chatpublic-snomedintl.slack.com # snomed-hl7-fhir (ask for invite!)

Zulip Chat: https://chat.fhir.org/#narrow/stream/179202-terminology

Attendees

 Rob HausamPeter G. WilliamsPeter JordanMichael Lawley

Apologies

Daniel Karlsson

Meeting Recording

Discussion items

ItemDescription

Mins

OwnerNotes & Actions
1Welcome and introductions2

Recording, notes & attendance.


2Summary of previous week and previous fortnight5
3Other Meetings10

Upcoming events:

SNOMED International April Business Meeting may or may not happen. In the event of the slot being available, this meeting can go ahead.

San Antonio HL7 Meetings + Connectathon May 16 -17 Cancelled. Virtual connectathon being discussed.

FHIR DevDays - June 16-18, 2020 Cleveland, OH (Update 10 March: RD: Go/No Go decision 10 May. DK: US expected to peak late April)

SI Business + Expo October

4Subsumption across code systems10

$subsumes : Snowstorm currently validates (ensures) that codingA and codingB have the same (or no) codesystem. Is subsumption across different code systems a thing? Is there a use case? Answer: Only if there was a map, and even then the proposed restrictions to "broader/narrower" would not allow you to do that.

How about between two different editions of SNOMED? Tricky. Other implementations require the module and the version to be the same.

$closure however could allow managment of codes from different CodeSystems.

5Behaviour on Lookup10

What properties are returned?

Discussion: Both Ontoserver and Snowstorm are returning EffectiveTime which is not listed here (unlike other SNOMED specifics): https://build.fhir.org/snomedct.html

Point of interest: Grahame's server returns a copyright property.

6Language Reference Sets in FHIR45All

Mechanisms for working with Languages

Designation extension

7SNOMED Family of Languages10

Impact of proposed changes (eg text searching in ECL) on FHIR. Questions around which language reference sets to use when there are multiple, especially partial/overriding context (referred to MAG for discussion)

8SNOMED FHIR Implementation Guide60

Implementation Guide for using SNOMED CT with FHIR.

Update 10 Dec: DK - main problem is URI/Ls which publisher has fixed ideas about. Publisher does not examine all folders - looks in profiles but not subfolders and doesn't seem to look in ValueSet folder.

Update 21 Jan: DK and RH have merged commits and these can be seen in the HL7 server build: http://build.fhir.org/ig/IHTSDO/snomed-ig/branches/new-template/ and build errors here: http://build.fhir.org/ig/IHTSDO/snomed-ig/branches/new-template/qa.html

Update 11 Feb: Grahame said that he'd show us how to set the URI so that it doesn't have to follow the base URI. Next person to try that can we fire a Zulip off to ask about it?

IG Documentation: http://build.fhir.org/ig/FHIR/ig-guidance/index.html

Also look at the sample IG https://github.com/fhir/sample-ig see build http://build.fhir.org/ig/FHIR/sample-ig/

9

Any other business





Potential Items for Discussion

Description
OwnerNotes & Actions
API for FHIR Resource ↔ Post coordinated expression mapping

API for FHIR Resource to SNOMED Expression

  • Daniel Karlsson Thought there might be some documentation from CIMI on this. Also notes from DMarkwell about constructor bindings.
  • Peter G. Williams Pull these notes into confluence - can we mention it in the IG?
Looking up an SCTID in an unknown module

Problems when dependencies do not align. Multiple code system resources represent multiple editions / versions.

ML: See code parameter to code system search. Should return code systems (ie versions) where that code is defined. International concepts would appear in every edition known to the server.

eg /CodeSystem?system=htp://snomed.info/sct&code=12345678&_elements=version

GPS

See Discussion on Global Patient Set (GPS)
FHIR Shorthand
Michael Lawley

https://github.com/HL7/fhir-shorthand/wiki

https://build.fhir.org/ig/HL7/fhir-shorthand/FSHQuickReference.pdf

Tooling: https://github.com/FHIR/sushi

$lookup operation - properties returned
Peter Jordan

Using http://ontoserver.csiro.au/vstool/  I noticed that both Ontoserver and SnowStorm return a SNOMED CT $lookup property for effectiveTime, which I don't see listed, as one of the SNOMED CT properties in the FHIR R4 specification at http://hl7.org/fhir/snomedct.html. Should we create a Jira TIcket to add this?

Completed - https://jira.hl7.org/browse/FHIR-26555





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