Veterinary Extension of SNOMED CT© - April 2017 Release Available

April 2017
The veterinary extension has been updated to include requested concepts and descriptions and to align it with the January 2017 release of SNOMED CT. To obtain a copy of this release, login to VTSL (with a VTSL account or your UMLS username and password) and access it via the Download page in the Extension Project.

AAHA & AAEP Problem & Diagnosis Terms Updated - April 2017 Release Available

April 2017
The Problem & Diagnosis Terms (AAHA & AAEP) have been updated to include requested concepts and descriptions and to align it with the January 2017 release of SNOMED CT© and the April 2017 release of VetSCT©. To obtain a copy of these release files, login to VTSL (with a VTSL account or your UMLS username and password) and access them via the Download page in the AAHA or AAEP projects, respectively.

IHTSDO SNOMED CT© - July 2016 International Release

August 1, 2016
The VTSL Browser has been updated to include the July 2016 release of SNOMED CT© International. Veterinary Extension and subsets will be reviewed and updates will be released by October 1, 2016.

Unified Medical
Language Systems®

April 2014
The Veterinary Extension of SNOMED CT is now integrated into the Unifed Medical Language Systems® Metathesaurus. This allows users of UMLS Metathesaurus access to veterinary only content, as well as provide veterinary stakeholders with the Lexical tools available with the use of UMLS. To take advantage of UMLS resources visit UMLS Terminology Services.

July 2014
VTSL has incorporated UMLS authentication services into the VTSL website. You can now use your UMLS username and password to log in to our website. Logging in gives you access to the download files for the Veterinary Extension of SNOMED CT. Once logged in, you can also request access to additional resources such as the AAHA Diagnostic Terms and AAEP Diagnostic Terms. If you do not yet have a UMLS account or have forgotten your UMLS username and password, visit UMLS Terminology Services to retrieve your UMLS credentials. Then return here to log in to VTSL.

IHTSDO IHTSDO transfers "non-human" content to the SNOMED CT Veterinary extension
April 2014

With the January 2014 release of SNOMED-CT, IHTSDO has "retired" all concepts that were part of their "non-human subset." The non-human subset identified content that applied ONLY to non-human animals. As part of that retirement, we agreed to accept the transfer and incorporate it into the Veterinary Extension we maintain. IHTSDO directed that the transfer include retirment of the original concept IDs and creation of new concept (and description) identifiers in our extension. The position of these concepts in the SNOMED-CT hierarchy remains unchanged and our extension release files include relationships needed to convert the old SCTIDs to new Extension SCTIDs in your system. For further information on the Veterinary Extension to SNOMED CT navigate the extension project or follow this link:

Veterinary Extension


Client Services

The Veterinary Terminology Services Laboratory (VTSL) is dedicated to practical application of standardized medical terminologies which facilitates the recording and analysis of clinical information, supports translational research activities and thereby improve animal and public health. Governmental and private organizations contract with VTSL to support practical application of standardized terminologies in veterinary medicine and public health. VTSL client services include terminology management, facilitated collaboration and education.

Terminology Management & Resources

We provide a variety of services to veterinary organizations that wish to deploy standardized terminologies. We also maintain and distribute the Veterinary Extension to SNOMED CT as well as subsets for the National Animal Health Laboratory Network, AAHA Diagnostic Terms and AAEP Diagnostic Terms.

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Facilitated Collaboration

We help veterinary organizations determine their own best approach to standardized terminologies.

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Medical terminology is a specialization of the medical informatics discipline. It is rare that organizations have personnel familiar with application of specialized medical termionlogies. With this in mind, VTSL provides educational services and opportunities for veterinarians.

Online resources: VTSL maintains a repository of presentations given by laboratory personnel that relate to veterinary implementation of terminology standards, including but not limited to SNOMED-CT. VTSL also maintains a public browser that has been developed and maintained to allow exploration of SNOMED-CT by interested parties.

Post-DVM Education: VTSL is a division of the Veterinary Medical Informatics program at the Virginia-Maryland Regional College of Veterinary Medicine. We offer formal training leading to either a masters of science or PhD in Veterinary Medical Sciences with an emphasis in veterinary medical informatics. Interested parties should contact the Biomedical and Veterinary Sciences program at the VMRCVM or visit their webpage.

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Terminology Development

We believe that in order for SNOMED-CT® to contribute to Veterinary Medicine, its veterinary content must be enriched. VTSL acts, on behalf of various veterinary stakeholders, to facilitate the incorporation of high quality veterinary terminology content within the SNOMED-CT® universe.

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