Blog

Blog from April, 2020

Dear SNOMED CT and Orphanet users,

Thank you for your interest in participating in the Alpha test/review of the maps between SNOMED CT and Orphanet. We realise that times are difficult during the COVID-19 pandemic and hope you and your loved ones are keeping well.

The April 2020 Alpha release of the SNOMED CT Orphanet Simple Map package is now available from the MLDS distribution site.

The ALPHA release package is distributed for evaluation purposes only. It must not be used in production clinical systems or in clinical settings, or distributed to Affiliate Licensees or any third parties at this time.  

This Alpha release provides organizations an opportunity to perform a thorough evaluation of the SNOMED CT Orphanet Simple Map package, and to provide feedback to SNOMED International.  

This release is dependent upon, and should therefore be evaluated in the context of the January 2020 SNOMED CT International Edition.

All files distributed for the April 2020 Alpha release are available from the “April 2020 ALPHA Release v0.1” version in the “Offline & Alpha versions” section of the “SNOMED CT Orphanet Simple Map package” project, which can be found on the “SNOMED Releases” page in MLDS, accessed here (please ensure that you login to MLDS first): 

The SNOMED CT Alpha release is distributed in a zipped archive file in the official RF2 format as follows (the Release Notes are located separately in the same repository as normal):

  • xSnomedCT_SNOMEDOrphanetMapPackage_ALPHA_20200430T120000Z.zip

The SNOMED CT Alpha Release Notes can also be accessed online:

If you do not have access to MLDS, please request the Alpha release package by contacting the Release Management Team by email (info@snomed.org), with the subject "Release Management Team - SNOMED CT Orphanet Simple Map package April 2020 ALPHA release access request".

SNOMED International is actively seeking feedback during the Alpha review period on the quality of the map, both from a content and technical aspect, as well as feedback on specific use cases.  

Feedback should be sent to info@snomed.org as soon as possible, but no later than 30th November 2020.

When providing feedback, please include as much detail as possible, incorporating references to, or samples of, specific instances of the issue being reported.  The absence of sufficient information to allow SNOMED International to confirm the reported issue may result in no action being taken prior to the Production release.  Feedback on content related issues will be assessed and prioritized by SNOMED International, and a decision will be made as to whether to address any reported content issues for the Production release or as part of a future release.  

If you have any questions about the April 2020 Alpha release, or have difficulties downloading this file, please contact SNOMED International at support@snomed.org with “April 2020 SNOMED CT Orphanet Simple Map package Alpha release question” in the subject line. 


Kind regards,

Andrew Atkinson  |  Release Manager

Dear all,  

The Production release of the April 2020 SNOMED CT® Spanish Edition is now available to everyone from the MLDS distribution site.  This release contains the Spanish language version of the March 2020 SNOMED CT® International Edition. 

All files distributed for the April 2020 SNOMED CT® Spanish Edition are available from the “April 2020 v1.0” version in the “SNOMED CT Spanish package - Edición en Español” project, which can be found on the “SNOMED Releases” page in MLDS, accessed here: 

          https://mlds.ihtsdotools.org/#/ihtsdoReleases

The SNOMED CT® Spanish Edition Production release is distributed as a single zipped file archive:  

  • SnomedCT_SpanishRelease-es_PRODUCTION_20200430T120000Z.zip

The Release Notes and Starter Guide have been separated from the Spanish Edition package, and can be viewed online on SNOMED International’s Release Management Confluence website:

The Release Notes have also been published as a .pdf file alongside the release package, in the same MLDS repository. 

The Release Packaging format has been updated to bring it in line with the SNOMED CT International Edition standards, so there may be changes to both file naming conventions and the package contents themselves.  Please see the Readme file for details of any new naming conventions and file structures, and the Release Notes for further details.

If you have any questions about the April 2020 SNOMED CT® Spanish Edition Production release, or have difficulties downloading the files, please contact SNOMED International at support@snomed.org with “April 2020 Spanish Edition Production release” in the subject line.

Kind regards,

Andrew Atkinson  |  Release Manager

Dear all,

Following on from the March 2020 Interim International Edition release, we are proposing the following plan for the July 2020 International release, in order to support all users, whether or not they consumed the March 2020 Interim release.

July 2020 International Edition Release format

The current plan is to publish the formal July 2020 International Edition with the March 2020 Interim release as the official "previous published release". 

This means that all COVID-19 content published in the March 2020 release will be present in both July 2020 Snapshot and Full files, with an effectiveTime of 20200309.  The Delta files will be relative to March 2020, containing only new content from the July 2020 editing cycle, and will not duplicate the Delta file content from the March 2020 release.

  1. For those users who consumed the March 2020 Interim Release:
    1. It causes no issues for these users who want to use either the Full, Snapshot or Delta to update to July 2020.

  2. For those users who did NOT consume the March 2020 Interim Release:
    1. It may require some workarounds only for those users who want to use the Delta files, as they will not see the new Coronavirus content from March 2020. 
    2. They should therefore use one of the following methods to update:
      1. The best approach is to first apply the March 2020 Interim Release Delta files, and after that apply the July 2020 Release Delta files.
      2. Use the Snapshot files to update to July 2020 - this approach will also be supported going forward, for all future releases (even once we move to continuous delivery)
      3. Use a new Rollup Delta package that we will publish alongside the July 2020 Release:
        1. This July 2020 Rollup Delta package would be a separate resource with clear documentation.  It would include all changes since January 2020, with the actual, official effectiveTime. Therefore all of the new Corona content would have an effectiveTime of 20200309. The rest of the content will have an effectiveTime of 20200731.

        2. This rollup package would include instructions on how to cope with multiple effectiveTimes (per componentID), as this will be a necessary feature of rollup Delta files) - for example if a concept has been added in March 2020, and then inactivated in July 2020, both records will exist in the same Delta file for this rollup period.

        3. We may also use this Rollup package as an opportunity to trial the new proposal for the Delta file naming conventions - containing the effectiveTime of BOTH the current Delta, and also the release that the Delta is taken from - for example, if a Delta is from Jan 2020 to March 2020:

            1.  sct2_Concept_Delta_INT_20200131_20200309.txt 


  3. This proposal ensures that both deltas are consistent, and this therefore a) preserves RF2 protocols, and b) pushes forward the preparations for continuous delivery.

Please see the early visibility page here for full details of these and other changes for upcoming releases:  July 2020 Early Visibility Release Notice - Planned changes to upcoming SNOMED International Release packages


PLEASE PROVIDE ANY FEEDBACK ON THIS PROPOSAL AS SOON AS POSSIBLE, IN ORDER TO FACILITATE COMPREHENSIVE PLANNING FOR THE JULY 2020 RELEASE - thanks!


Kind regards

Andrew Atkinson


Dear SNOMED CT and MedDRA users,

Thank you for your interest in participating in the Alpha test/review of the maps between SNOMED CT and MedDRA. We realise that times are difficult during the COVID-19 pandemic and hope you and your loved ones are keeping well.

The April 2020 Alpha release of the SNOMED CT MedDRA Simple Map package is now available from the MLDS distribution site.

The ALPHA release package is distributed for evaluation purposes only. It must not be used in production clinical systems or in clinical settings, or distributed to Affiliate Licensees or any third parties at this time.  

This Alpha release provides organizations an opportunity to perform a thorough evaluation of the SNOMED CT MedDRA Simple Map package, and to provide feedback to SNOMED International.  

This release is dependent upon, and should therefore be evaluated in the context of the January 2019 SNOMED CT International Edition.

All files distributed for the April 2020 Alpha release are available from the “April 2020 ALPHA Release v0.1” version in the “Offline & Alpha/Beta versions” section of the “SNOMED CT MedDRA Simple Map package” project, which can be found on the “SNOMED Releases” page in MLDS, accessed here (please ensure that you login to MLDS first): 

The SNOMED CT Alpha release is distributed in a zipped archive file in the official RF2 format as follows (the Release Notes are located separately in the same repository as normal):

  • xSnomedCT_SNOMEDMedDRAMapPackage_ALPHA_20200401T120000Z.zip

The SNOMED CT Alpha Release Notes can also be accessed online:

If you do not have access to MLDS, please request the Alpha release package by contacting the Release Management Team by email (info@snomed.org), with the subject "Release Management Team - SNOMED CT MedDRA Simple Map package April 2020 ALPHA release access request".

SNOMED International and ICH/MedDRA MSSO, together with regulatory and industry partners, developed the SNOMED CT to MedDRA and MedDRA to SNOMED CT maps as part of the WEB-RADR 2 project, funded by the EU’s Innovative Medicines Initiative (IMI). The maps represent new products for both organisations’ user communities and wider stakeholder groups and, therefore, SNOMED International is actively seeking feedback during the Alpha review period on the quality of the maps, both from a content and technical aspect, as well as feedback on specific use cases.

Feedback should be sent jointly to info@snomed.org and mssohelp@meddra.org. The Test/Review protocol document (https://confluence.ihtsdotools.org/pages/viewpage.action?pageId=106701647) provides guidance on the type of feedback the two parties would like to receive. In addition, the Mapping Conventions document (https://confluence.ihtsdotools.org/display/RMT/SNOMED+CT+MedDRA+Simple+Map+package+ALPHA+Mapping+Conventions+-+April+2020) should form part of the feedback.

Feedback should be sent as soon as possible, but no later than the 30th September 2020.

Please download and use the following form to provide feedback to both parties:

When providing feedback, please include as much detail as possible, incorporating references to, or samples of, specific instances of the issue being reported.  The absence of sufficient information to allow SNOMED International to confirm the reported issue may result in no action being taken prior to the Production release.  Feedback on content related issues will be assessed and prioritized by SNOMED International, and a decision will be made as to whether to address any reported content issues for the Production release or as part of a future release.  

If you have any questions about the April 2020 Alpha release, or have difficulties downloading this file, please contact SNOMED International at support@snomed.org with “April 2020 SNOMED CT MedDRA Simple Map package Alpha release question” in the subject line. 


Kind regards, 

Andrew Atkinson  |  Release Manager