© 2021 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 International Edition Complete OWL file DEMONSTRATION release of SNOMED CT® 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[or a Member of SNOMED International] is not controlled by SNOMED International, and may have been modified and may be out of date.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
Introduction
The 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®) maintains the SNOMED CT technical design, the content architecture, the SNOMED CT content (including the concepts table, the descriptions table, the relationships table, a history table and ICD mappings), and related technical documentation.
This DEMONSTRATION 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.
Audience for this document
This document should be read by all those who will be reviewing or submitting questions or comments related to the Demonstration Release, including participation in any follow up meetings.
Scope and Purpose
The OWL Axiom reference set has been developed to replace the stated relationship file following the first release of a partial OWL Axiom reference set in the July 2018 International Edition. In this demonstration release, the Stated Relationship records have been calculated in relation to the January 2019 International Edition, as if the OWL Axiom migration had never happened. They therefore represent the actual authoring changes to the Stated Relationships that happened during the July 2019 editing cycle, as these were otherwise opaque (in particular the inactivations due to modelling) due to the mass inactivation of all Stated Relationship records in the July 2019 International Edition, as part of the OWL Axiom migration.
The purpose is to provide a view to the community which isolates modelling changes that could impact their products and systems. For example, assisting in the identification of extension content that was modelled in alignment with now improved/deprecated modelling patterns and editorial policies.
Release content
Content detail
The only content in this release will be the alternative view of the Stated Relationships. This is to focus on the useful content for this specific use case, without causing any confusion which might otherwise ensue from including files that are either identical to the Production International Edition files, or which branch off from the Production content.
To be clear, this Release package offers up an alternative view to either that of the July 2019 International Edition release, or from that of the February 2019 Complete OWL file Demonstration release package. It is NOT a continuation of either the Production International release, or the previous Complete OWL file demonstration releases.
Effective date
The Demonstration release will be made available with an effectiveTime of 20190731.
Technical Notes
RF2 package format
The only content in this release will be the alternative view of the Stated Relationships. All other RF2 files will be empty, in order to denote that this is a demonstration release only, and should not under any circumstances be used in Production clinical systems.
Release of OWL reference sets
As an essential part of SNOMED CT Logic Profile Enhancements, the OWL refsets have been developed to represent logic definitions following the international standard of OWL 2 Web Ontology Language. In the International Edition releases for July 2018 and January 2019, the scope for the content in the OWL axiom refset is limited to property chains, transitive properties, reflexive properties, the general concept inclusion (GCI) axioms and additional axioms that are implemented to support the Drug/Anatomy content projects.
In this Demonstration release, the complete OWL Expression refset has been left blank. This is because the purpose of this package is to provide an alternative view to the Production International Edition releases, which have now migrated to OWL. This package therefore supposes that the OWL migration hadn't been implemented, and provides a view of what the Stated Relationship files would have looked like if this was the case.
Stated relationship file
A set of documentation has been developed to support the Logic Profile Enhancements. Please see the detail in the following links:
Approvals
Final Version | Date | Approver | Comments |
|---|---|---|---|
| 1.0 |
| Rory Davidson | Approved |
Download .pdf here:
Draft Amendment History
Version | Date | Editor | Comments |
|---|---|---|---|
0.1 | 20190927 | Andrew Atkinson | Initial draft |
| 0.3 | 20191028 | Andrew Atkinson | Minor refinements + finalisation |