This page has been set up to support awareness of the work planned for these concepts.
Summary
After a review there has been a decision that O/E and C/O content is to remain in the International Edition (given it is used by two countries) with the content to potentially be managed by use of a module. Module work is still be undertaken so timing on time work is yet to be planned.
There is the a plan to check for the base concept to ensure it exists. Work on this is yet to be planned.
- Cathy Richardson Feedback on timing of Module work
Note: CMAG meeting 18 October 2017 next steps up for discussion. Outcome to be noted here after meeting.
Final Outcome:
O/E and C/O concepts in the International Edition will be inactivated. Prior to this occurring a check for the 'base' concept will be undertaken. The timing of this is yet to be determined. Input from CMAG representatives is required in relation to the timing e.g. the UK require this to be undertaken after April 2018 given user requirements.
- CTR-3Getting issue details... STATUS
Actions
Date | Requested action | Requester(s) | Response required by: | Comments |
---|---|---|---|---|
18 October 2017 |
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| Given country input to date, this is requested only from New Zealand and new CMAG members, not involved in previous discussions. The UK response has been provided (April 2018) and other countries not listed here have not expressed any requirements in the previous discussions or CMAG meeting 18th October 2017. |
Meetings topic discussed in:
2017-10-18 - CMAG Meeting Face to face in Bratislava Slovakia
JIRA links:
- IHTSDO-852Getting issue details... STATUS
- IHTSDO-433Getting issue details... STATUS
- PCP-48Getting issue details... STATUS
- PCP-115Getting issue details... STATUS
Relevant documents
Country response
Country | Date | Response |
---|---|---|
Member countries without a CMAG rep |
26 Comments
Cathy Richardson
CMAG advised 9 August 2016- no further updates to information provided here. Paged transferred to resolved topics at this point in time.
Johannes Gnaegi
Hi Cathy,
What could potential user requirements be to postpone inactivation? After the new release is published, they have half an year to update to the new version, it will come anyway as far as I understood?
Elaine Wooler
Hi Johannes
It is probably easier for me to explain this. The UK is migrating all of Primary care GP's in England from Read codes to SNOMED CT by April 2018. This involves a mapping process from Read codes to SNOMED CT so we have created a GP subset of SNOMED from the Read code data to start this process of migration. This mapping process ensures all historical records make sense as Read codes have been used in GP electronic records for some time. As the majority of this content originated from the UK Read codes this could cause significant churn in the mapping tables at a time when we want them to be stable and familiar. This content will be in historical records so migration is a key factor for us as if inactivated the mapping tables would need to change. The mapping tables are also clinically assured and again this process takes time. Also the relationship with suppliers to support this migration is eased if churn is at a minimal for this content.
Hope this explains
Elaine
Cathy Richardson
Thanks Elaine .
Johannes let me know if you've further questions.
Cheers,
Cathy.
John Fountain
We are looking into this one actively now in NZ and obtaining feedback.
Elaine - may have to swap notes with you regarding the status of the UK Read to SNOMED mapping and your thinking on the way forward...
Cheers
John
Johannes Gnaegi
Thank you Elaine for the clarification.
For Switzerland we do not have such timing requirements then.
Cheers
Johannes
Jostein Ven
No timing requirement at this point in time from Norway.
Regards, Jostein
John Fountain
Hi All, After a wide polling within NZ there appear to be no immediate concerns regarding the proposed changes. Users will review how they are using SNOMED for issues related to O/E and C/O, including the biggest user of the UK Read to SNOMED map (our Accident Compensation Corporation). Therefore no additional timing requirements beyond what the UK has proposed.
Cheers
John
Matt Cordell
Hi Cathy, Is there any indication of what exactly is planned for this content? Will it be retired? How?
E.g. 164530001 On examination - joint movement (finding)
Might be replaced with
298179002|Finding of joint movement (finding)| OR 364563006|Joint movement (observable entity)|
(Depending on what it's supposed to mean?)
As far as I can tell these are all findings, precoordinated with either "as reported by the patient" or "as seen by clinician".
If we know the destiny of these concepts extensions might be able to do something about them (so that they don't start getting used).
Cathy Richardson
Matt Cordell -sorry for the delay here. The plan is to inactivate the concepts after checking the base finding concept exists. If the base concept does not exist it will be created. The inactivated O/E or C/O concept would have a historical association to the base finding concept. The one you've noted here 164530001 On examination - joint movement (finding) is a grouper. Where a base concept for those grouping concepts does not exist, the value of creating a "base" concept for those as well as editorial guidance would need to be considered The timing of this work is currently being discussed.
Lesley MacNeil
Cathy Richardson - can you please add CTR-3 to the agenda and update that ticket - Thanks
Elaine Wooler
Just to confirm the UK have requested if this could be delayed until the July 19 release as it has significant impact on the Primary Care migration so we would be very grateful if this can be accommodated.
Matt Cordell
Is there any update on this Cathy Richardson?
I'm keen to get rid of this content from our release but also take into consideration SI's eventual action?
It doesn't look like there's anything in the July19 release (daily build). Do you know what the reason for inactivation value will be? (outdated? ambiguous?)
Cathy Richardson
Matt Cordell I'll be raising this at a meeting next week and will provide a response following this. Kind regards, Cathy
Cathy Richardson
Matt Cordell Just advising that I am still following up on this. Given a UK public holiday the meeting did not proceed. I will come back to you shortly. Kind regards, Cathy
Olivier Bodenreider
I looked for O/E and C/O in the value sets used in Clinical Quality Measures in the US. (Cursory inspection rather than detailed analysis),
A small number of O/E codes (50 or less) are used in value sets, primarily related to gait and respiratory issues. These codes are often used "in parallel" with similar finding codes not showing "O/E". For example
163685000 | On examination - gait spastic (finding) |
vs.
9447003 | Spastic gait (finding) |
Arguably, the O/E codes are unnecessary in this context (and might not be listed if they were not children of the corresponding "regular" code).
Similar issue with C/O, but much fewer codes used in value sets (a small handful), also listed together with the corresponding "regular" codes.
In summary, the use of O/E and C/O codes in value sets seems redundant (and potentially accidental). Not essential in this context.
Matt Cordell
To answer Sheree's query about what our alternative is, such detail is generally captured in the information model.
So a "Presenting problem" field populated by the value 271807003|Rash| - would indicate the patient is complaining of (presenting with/complaining of/Reason for presenting) a rash.
Whereas a "Diagnosis" or "Observations" field populated by the value 271807003|Rash| - would indicate the clinician has observed a rash.
This for any use cases where making a distinction between patient or clinician reported findings - one would query the appropriate field.
Similarly to Olivier's observations - some of our reports on SNOMED usage in the wild include both O/E and "regular" concepts. But this is generally because both have been available, and clinicians will just pick whatever.
Matt Cordell
I know this discussion is from a couple of years ago, but we've just started updating our extension with the January 2021 release, and I'm seeing a few of these simply retired as "moved to extension". There's at least 60
I was expecting the change to be "to inactivate the concepts ...(and)... have a historical association to the base finding concept."
There's 2112, so it seems very intentional...
Cathy Richardson
Hi Matt Cordell,
All these concepts (O/E and C/O) were returned to the UK extension. At this point in time we can not add a second relationship when moving them to an extension but where necessary a new base concept had been previously added.
By the way the inactivation working group material is going to be discussed at the EAG which runs later today (or tomorrow early for us):2021-02-24 Editorial Advisory Group Conference call
Cathy
Paul Amos
Hi Matt Cordell,
The briefing paper on our proposals for updating the concept inactivation process will be available later today and I will include you in the circulation for feedback.
We have proposed that all MOVED_TO concepts should include an optional historical association to an "ALTERNATIVE" concept.
"The identified “ALTERNATIVE” substitute(s) are offered as semantically "sufficiently similar" to the original inactive concept, for certain unspecified use cases.
They may or may not be semantically equivalent to that moved, inactivated concept.
Best wishes, Paul
Matt Cordell
Thanks Paul Amos and Cathy Richardson,
The "Alternative" association sounds great. It's just unfortunate all these concepts were inactivated without using it.
Any users and records having the inactivated codes have find a replacement from scratch, possibly manually one at a time.
I'll just try identify the last parent for the concepts, which I'm hoping will give me a decent alternative for the majority.
Cathy Richardson
Hi Matt Cordell would you please leave this issue with me for now? I'll come back to you shortly. Regards, Cathy
Matt Cordell
I'd forgotten this discussion happened... but just had another customer asking us how to handle the inactivated codes in their data..
The "Moved to" association isn't at all helpful to them.
Is there any update? I can find anything on confluence about this topic beyond this page and associated discussion.
Cathy Richardson
Hi Matt Cordell
Are you referring to situations where the "moved to" association was used in general or the O/E and C/O content used this association?
Cathy
Matt Cordell
Yes. Above it's mentioned twice that there'd be a historical association from the retired O/E and C/O concepts to useful "Alternative"
Since January 2021, there's been over 5000 concepts retired as "Component moved elsewhere". None of these have an accompanying "Alternative" association.
(Looks like about 2000 of these were O/E and C/O concepts, the others were mostly part of the 'breeds' project )
The historical associations are extremely useful for users (who usually aren't SNOMED experts) to find candidate replacements in their reference sets, value sets and historical data.
Cathy Richardson
Hi Matt Cordell ,
We are looking at progressing this. Will provide further information via the early visibility page when timing is known.
Cheers,
Cathy