The February 2019 Complete OWL file DEMONSTRATION release of the SNOMED CT® International Edition is now available to SNOMED International Members.

This DEMONSTRATION release provides Members with the opportunity to have an early view of the proposed OWL file changes, in order to help our community to evaluate their tooling, systems and release processes. The new OWL Axiom reference set (contained in the OWLExpression files) represents all stated relationships and all new description logic features, such as general concept inclusion (GCI) axioms and additional axioms. Please note that the content modeling is still a work-in-progress and these examples are being provided for demonstration purposes only and are not necessarily reflective of content that will be in the July 2019 International Edition Release. The complete OWL Axiom refset will be mandatory from the July 2019 release onwards.

The 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 at this time.

The SNOMED CT DEMONSTRATION release contains SNOMED CT files in Release Format 2 (RF2) only, distributed in a zipped file archive.

The SNOMED CT DEMONSTRATION Release Notes can also be accessed online:
https://confluence.ihtsdotools.org/display/RMT/SNOMED+CT+COMPLETE+OWL+FILE+DEMONSTRATION+package+Release+Notes+-+February+2019

Please see the Early Visibility confluence page, to remind yourselves of all of schedule of the upcoming changes in this release:
https://confluence.ihtsdotools.org/display/RMT/Early+Visibility+Release+Notices+-+Planned+changes+to+upcoming+SNOMED+International+Release+packages

If you are interested in getting these files, please contact This email address is being protected from spambots. You need JavaScript enabled to view it.

If you have any questions about the February 2019 DEMONSTRATION release, or have difficulties downloading this file, please contact SNOMED International at This email address is being protected from spambots. You need JavaScript enabled to view it. with “February 2019 Complete OWL file DEMONSTRATION release question” in the subject line.

Any feedback on the DEMONSTRATION release files must be submitted as early as possible, but certainly before 5th March 2019.