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The schedule for the April 2024 Business Meetings has now been finalised and in-person registration is open.

The SNOMED Computable Languages Project Group meeting will be held on the Wednesday afternoon in the Bishopsgate & Chancery room.

I very much look forward to seeing you there if you can make it!

Kind regards
Kai Kewley


This week we will continue to discuss the new ECL requirement of selecting substances and all their transitive modifications to support the meds requirement raised by Michael Lawley.


The meeting is on Thursday at 10:00 UTC. Other topics are listed on the agenda here: 2024-01-25 - SLPG Meeting

Zoom meeting link

See you there!Kai Kewley

The Computable Languages Group will be meeting again this week on Thursday at 10:00 UTC. 

Our current topics include assessing ECL result consistency between terminology servers, and also assessing the maintenance requirements for postcoordinated expressions.

Zoom meeting link

See you there!Kai Kewley

The Computable Languages Group will be meeting during the SNOMED CT Expo next week in Atlanta GA.

Please note that the Thursday session has now been rescheduled to Monday morning 10:30-12:00 Atlanta time, that's 14:30-16:00 UTC.
Unfortunately this overlaps with one of the Managed Service User Group sessions. Both sessions will be recorded.

Onsite meeting room: Hub 3

Join by Zoom: https://snomed.zoom.us/j/89405241098?pwd=WFRWcGlQNWVyL2dFMkcyRDJZRmdOdz09

See you thereKai Kewley

The Computable Languages Group will be meeting again this week on Thursday at 10:00 UTC. 

I will focus on a new discussion item from Jeremy Rogers regarding ECL result consistency between terminology servers.

Zoom meeting link

See you there!Kai Kewley

The Computable Languages Group will be meeting again this week on Thursday at 10:00 UTC. 

We will continue the topic of broadening the use of ECL.

As always any other topics from the group are welcome.

Please note that there is a new Zoom meeting for this group!

See you there!Kai Kewley

The Computable Languages Group will be meeting again this week on Thursday at 10:00 UTC. 

This week I would like us to consider how we could broaden the use of ECL, perhaps by making it easier for new tools to implement.

As always any other topics from the group are welcome.

See you there!Kai Kewley

The Computable Languages Group will be meeting again this week on Thursday at 10:00 UTC. 

We will be reviewing draft changes to the ECL Guide and any other topics from the group.

See you there!Kai Kewley

Please be advised that the schedule for the October 2023 Business Meetings has now been finalised, and registration for in-person attendance is open (see links below). 

I hope that you are able to attend the event, we look forward to meeting in person where possible. For those joining us in Atlanta I advise you to book accommodation at the venue asap (details can be found on our website).


October 2023 Business Meetings Schedule

October 2023 Business Meetings & SNOMED CT Expo 2023 Registration

SNOMED CT Expo 2023 Program


Looking forward to seeing you in Atlanta!

Hi all,

There will be no meeting this week.

I welcome your feedback on the ECL 2.2 syntax changes.

The syntax can be tested in the ANTRL Lab by:

  • clearing the content of the "Lexer" tab
  • putting the latest in-development syntax into the "Parser" tab
  • putting "expressionconstraint" into "Start rule"
  • putting the ECL into the textbox on the right and clicking "Run" .. this will check that the syntax parses well and generate the parser tree

Note this is the syntax only, there are no ECL 2.2 implementations yet.

Kai Kewley

The Computable Languages Group will be meeting again this week on Thursday at 10:00 UTC. 

We will be reviewing the ABNF changes to the ECL syntax for alternate identifiers (LOINC) and the new top/bottom operators (GPS).

See you there!Kai Kewley

Hi all!

There will be no meeting this week.

I will make the required changes to the ECL syntax definition (ABNF) for the LOINC alternate identifiers feature as agreed in London and share that by email.

The next meeting will be in two weeks.

Kind regards,
Kai Kewley

Hi all!

We are having a short break in our regular meetings while there is some staff absence.

The SNOMED CT Languages Project Group (SLPG) will be meeting in a month's time on Thursday 18th May at 10:00 UTC using this Zoom meeting link (password: 973902). 

To view the meeting agenda, please visit 2023-05-18 - SLPG Meeting.


Kind regards,
Kai Kewley


Hi all!

The SNOMED CT Languages Project Group (SLPG) will be meeting again this week on Thursday 23th March at 10:00 UTC using this Zoom meeting link (password: 973902). 

To view the meeting agenda, please visit 2023-03-23 - SLPG Meeting.


Kind regards,
Kai Kewley

Hi all!

The SNOMED CT Languages Project Group (SLPG) will be meeting again this week on Thursday 23th Feb at 10:00 UTC using this Zoom meeting link (password: 973902). 

To view the meeting agenda, please visit 2023-02-23 - SLPG Meeting.


If you have time before the meeting please review this replacement page: 2.5 Benefits and Challenges

This version is higher level and more context free, it aims to incorporate your feedback to the previous version.


Kind regards,
Kai Kewley