© 2024 International Health Terminology Standards Development Organisation. All rights reserved. SNOMED CT® was originally created by the College of American Pathologists.
This document forms part of the SNOMED CT® Denmark Extension release distributed by International Health Terminology Standards Development Organisation, trading as SNOMED International, and is subject to the SNOMED CT® Affiliate License, details of which may be found at https://www.snomed.org/snomed-ct/get-snomed
No part of this document may be reproduced or transmitted in any form or by any means, or stored in any kind of retrieval system, except by an Affiliate of SNOMED International in accordance with the SNOMED CT® Affiliate License. Any modification of this document (including without limitation the removal or modification of this notice) is prohibited without the express written permission of SNOMED International.
Any copy of this document that is not obtained directly from SNOMED International [or a Member of SNOMED International] is not controlled by SNOMED International, and may have been modified and may be out of date. Any recipient of this document who has received it by other means is encouraged to obtain a copy directly from SNOMED International [or a Member of SNOMED International. Details of the Members of SNOMED International may be found at http://www.snomed.org/members/].
Page At A Glance
1 Introduction
SNOMED CT terminology provides a common language that enables a consistent way of indexing, storing, retrieving, and aggregating clinical data across specialties and sites of care.
The International Health Terminology Standards Development organisation (IHTSDO®), trading as SNOMED International maintains the SNOMED CT technical design, the content architecture, the SNOMED CT content (includes the concepts table, the descriptions table, the relationships table, a history table, and ICD mappings), and related technical documentation.
2 Background
This document provides a summarized description of the content changes included in the March 2024 release of the SNOMED Clinical Terms® Managed Service Denmark Extension package.
It will also includes technical notes detailing the known issues which have been identified (should any of these exist). These are content or technical issues where the root cause is understood, and the fix has been discussed and agreed, but has yet to be implemented.
This Denmark Extension package is dependent upon, and should therefore be consumed in conjunction with the SNOMED CT® February 2024 International Edition release.
2.1 Scope
This document is written for the purpose described above and is not intended to provide details of the technical specifications for SNOMED CT or encompass every change made during the release.
3 Content Development Activity
3.1 Summary
This release contains translation corrections and improvements to existing content as well as minor technical corrections made as a result of upgrading the extension to use the SNOMED CT® February 2024 International Edition release.
4 Technical notes
4.1 Known Issues
Known Issues are content or technical issues where the root cause is understood, and the resolution has been discussed and agreed, but has yet to be implemented. This can be due to a number of reasons, from lack of capacity within the current editing cycle, to the risk of impact to the stability of SNOMED CT if the fix were to be deployed at that stage in the Product lifecycle.
4.2 Resolved Issues
4.3 Notice of changes to the International Edition Release Schedule
As you may already know SNOMED International have transitioned to a monthly delivery schedule for the International Edition of SNOMED CT. The move towards more frequent releases of SNOMED CT realizes several benefits, including:
- The potential to be able to get content changes into the terminology in a shorter time frame.
- The fostering of better interoperability, as a result of entities being able to consume release content that is more aligned with other organizations.
- The prevention of circular dependencies that occur in longer projects, due to the move towards smaller, more manageable authoring projects.
- More automated validation services, as a result of the inherent removal of the Alpha/Beta stages in the Release cycle.
Whilst most users will continue unaffected (as they can simply continue to download the releases every 6 months as always), this transition necessarily involves a few changes to process/packages:
- Delta files have been removed from both International and Managed Service release packages, including the Denmark Extension. A Delta Generation service will be provided for those who need it. The Delta Generation Tool allows users to create their own Delta between two fixed International release dates - you can find it here:
- The ICD-0/ICD-10 Maps will continue to be published in each Monthly International Edition release package (in line with that month's content) for the foreseeable future, unless we experience issues with the new process in Production, and they need to be removed at a later date.
The first monthly Release of the SNOMED CT International Edition was published on the 28th February 2022 with the Delta files having been removed, and therefore they were removed from the Denmark Extension from the March 2022 Release onwards.
Please note - While the SNOMED CT International Edition is moving to monthly releases, the Denmark Extension of SNOMED CT will remain on the current bi-annual release schedule of March and September.
For any further questions, please ask the Denmark NRC for details.
4.4 Changes to the Identifier file format
In line with the proposals documented here: https://confluence.ihtsdotools.org/mag/snomed-international-proposal-to-change-the-rf2-identifier-file-specification - the Denmark Extension Release will from now on include the following changes to the format of the Identifier files:
- < identifierSchemeId alternateIdentifier effectiveTime active moduleId referencedComponentId ...to
- > alternateIdentifier effectiveTime active moduleId identifierSchemeId referencedComponentId
These improvements are introduced in the September 2023 Denmark Extension release, and will be used in all future Denmark Extension releases until further notice.
4.5 Notice of changes to the DK Extension Identifier files
As from the March 2024 DK Extension release onwards, the Danish NRC will no longer release the DK Extension Identifier content as part of the Danish extension release packages.
This is in line with the previous communications sent by the Danish NRC in September 2023, providing advanced notification of the removal of this unwanted historical content from the DK Extension.
The following files will, therefore, no longer contain any content (other than the file headers) until further notice:
- sct2_Identifier_Full_DK1000005_20240331.txt
- sct2_Identifier_Snapshot_DK1000005_20240331.txt
Please contact the Denmark NRC if you have any questions regarding these changes.
4.6 Notice of changes to the DK Extension Release package
In line with the new implementation of Annotations, two new refsets have been added to the International Edition Release package, from December 2023 onwards:
- der2_scsRefset_ComponentAnnotationStringValueSnapshot_INT_20231201.txt
- der2_sscsRefset_MemberAnnotationStringValueSnapshot_INT_20231201.txt
The latest version of the DK Extension release is based upon the February 2024 International Edition, and therefore these Annotations file types will also be included in the DK Extension release package from the March 2024 DK release onwards, until further notice:
- der2_scsRefset_ComponentAnnotationStringValueFull_DK1000005_20240331.txt
- der2_scsRefset_ComponentAnnotationStringValueSnapshot_DK1000005_20240331.txt
- der2_sscsRefset_MemberAnnotationStringValueFull_DK1000005_20240331.txt
- der2_sscsRefset_MemberAnnotationStringValueSnapshot_DK1000005_20240331.txt
- der2_scsRefset_ComponentAnnotationStringValueFull_DK1000005_20240331.txt
These refset files are empty for the March 2024 DK Extension release, whilst content is being authored for future editing cycles.
Approvals
Final Version | Date | Approver | Comments |
|---|---|---|---|
| 1.0 |
| Camilla Wiberg Danielsen | Approved |
Download .pdf here:
Draft Amendment History
Version | Date | Editor | Comments |
|---|---|---|---|
0.1 |
| Andrew Atkinson | Initial draft created |
0.2 |
| Andrew Atkinson | Updates to technical notes |
| 1.0 |
| Camilla Wiberg Danielsen | Final version |