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DateSeptember 30, 2019
InfoRMS

Scope

AccessTerminology Gateway
Code SystemSNOMED CT
Code System VersionJuly 31, 2019
Release TypeMaintenance

The Canadian Edition package includes one (1) set of files for referencing the Canadian English (EN CA), the Canadian French (FR CA), the Canadian reference sets content and the July 2019 version of SNOMED CT International. This publication format is provided to Canadian stakeholders to facilitate implementation if there is no need to use the Canadian Extension* files separately. The content of this package has been pre-computed and harmonized based on the module dependency when several extensions are merged. 

The package is a zip file that includes text files in the RF2 format as per the SNOMED International specifications. The files provide the three (3) types of releases: full, delta and snapshot. Each type of release file includes refset files and terminology core files.

 

*  The Extension package will be available only upon request. It consists of different modules and files that can be implemented individually: there is a module for the EN CA content and the references sets, and one for the FR CA content. 

Release Scope

  1. Request for change received from Canadian implementers from March 15, 2019 to September 6, 2019 - InfoRMS SNOMED CT RFC Project
    1. Requests to add, change or inactivate content in both English and French 
    2. Corrections to content (typographical errors, metadata, others)  
    3. EN CA concepts promoted to international version of SNOMED CT
    4. NOTE: There is a number of requests that are "Issues in progress". This means that new concepts were created and were added to the September 2019 Canadian Edition. The same concepts have also been submitted to SNOMED International for core inclusion consideration. If they are accepted, they will then be included in the International version of January 2020 release, requiring harmonization for the next March 2020 Canadian Edition.

  2. Subsets - InfoRMS Subset RFC Project
    1. Subsets updated: Immunization subsets ,Communicable Disease subsets ,Primary Health Care subsets  and others
    2. No subsets inactivated
    3. The CA Edition Refset module contains the filter definition for 14 of the extensional published reference sets. They can be found in the Simple query specification reference set (foundation metadata concept). 
    4. Note that all reference sets are also published as a simple reference set (enumerated).



  3. New in this release
    1. OWL DL Enhancement
      1. To enable improvements to the quality and analytics capabilities of SNOMED CT, SNOMED International has enhanced the underlining logic profile of the terminology. The changes are now using the Web Ontology Language (OWL) for expressing the concept definitions  These expressions are published as an RF2 compliant reference set, replacing the stated relationships file. The stated relationships file have been deprecated in this release of the CA Edition, as they were deprecated in the July 2019 International release. 
      2. All previous stated relationships have been inactivated since that way of distributing the authoring assertions have been replaced by the OWL refset axioms. This means that all previously active concepts now have their concept definitions expressed in the new format. 
      3. If this is impacting your local extension because it is depending on the stated form of the Canadian release, and you need support to migrate to the new formalism, please contact us at [email protected]. 
      4. For further information, please refer to SNOMED International Edition Complete OWL file DEMONSTRATION Release Notes for July 2019.


    2. French translation
      1. Thank you to the Canadian Institute for Health Information (CIHI) for donation of French terms. The terms donated were related to the CIHI Reference Data Model Toolkit (CRDM Toolkit). They covered “Specimen Type”, “ Organ Type” and “Device Type”. The related InfoRMS batches are: BSCT-8801, BSCT-8734, BSCT-8792.
      2. The French Editorial Guidelines have been updated.

Refer to section 5. Questions and Comments, if you want  to know more about SNOMED CT or if you have comments for us.

Refer to section 6. Requests for Change (RFC), if you need more information on how to request on terminology content or subsets. 

Refer to section 7. Updates and Publications, if you want to be aware of when changes are published.

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