Page tree

Date

20191130

Document Version

1.0

Release Status

PRODUCTION



© 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® Sweden 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[or a Member of SNOMED International] is not controlled by SNOMED International, and may have been modified and may be out of date.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

Table Of Contents





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 November 2019 release of the SNOMED Clinical Terms® Managed Service Sweden 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 Sweden Extension package is dependent upon, and should therefore be consumed in conjunction with the SNOMED CT® July 2019 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

Content from the SNOMED CT® July 2019 International Edition release has been translated and additional concepts and synonyms for use in Sweden have been added. The main areas for which new concepts and synonyms have been added are:

  • Reasons for encounter
  • National medication list
  • Medical alerts
  • National knowledge base for reasons for prescription
  • The national information structure
  • Surgical procedures
  • Assessment scales

3.2 New and Updated Content

Concept statistics

New concepts: 217

Table 1 New concepts by hierarchy

Total number of concepts217
Procedure (procedure)84
Body structure (body structure)1
Situation with explicit context (situation)2
Staging and scales (staging scale)25
Physical object (physical object)2
Qualifier value (qualifier value)23
Observable entity (observable entity)38
Clinical finding (finding)27
SNOMED CT Model Component (metadata)15

Inactivated concepts from the Swedish extension: 2

Changes to existing concepts in the Swedish extension: 4

Descriptions statistics

New synonyms added: 241
Inactivated descriptions: 194
New translations: 4 634

Some concepts have not been translated into Swedish. The reasons for non-translation can vary and include concepts not relevant in a Swedish context and concepts were the name in Swedish and English is equivalent (e.g. the Latin names of organisms).

Table 2 Non-translated concepts by hierarchy

SNOMED CT Concept (SNOMED RT+CTV3)23 212
Social context (social concept)7
Procedure (procedure)33
Substance (substance)259
Body structure (body structure)12
Physical object (physical object)9 708
Environment or geographical location (environment / location)6
Qualifier value (qualifier value)2
Observable entity (observable entity)1
Special concept (special concept)4
Pharmaceutical / biologic product (product)1
Clinical finding (finding)83
Organism (organism)12 736
SNOMED CT Model Component (metadata)361

Reference sets

Thirty-three reference sets were added in this release, including reference sets supporting medical alerts, reference sets for the National Medication List (Nationella läkemedelslistan), reference sets supporting the Inera laboratory medicine information specification, as well as reference sets for National Information Models.

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.  

For the SNOMED CT Managed Service - Sweden Extension May 2019, the following Known Issues were identified, and agreed to be resolved in the next editing cycle:

Key Summary Description P
Loading...
Refresh

4.2 Technical notes

Migration to full OWLExpression file

In line with the July 2019 International Edition release, this release sees the full migration to OWL, replacing the Stated Relationship content with the OWLAxiom and OWLOntology refsets in the OWLExpression file.

All Stated Relationship records have therefore been inactivated, in lieu of the new content in the combined OWLExpression files.





Approvals


Final Version

Date

Approver

Comments

1.0

  

Terance Shird


1.0

   

Rory Davidson
1.0

 

Daniel Karlsson

Approved





Download .pdf here:







Draft Amendment History


Version

Date

Editor

Comments

0.1

 

Andrew AtkinsonInitial draft created
1.0

 

Daniel KarlssenFinal changes made


  • No labels