UMLS^®

The UMLS integrates and distributes key terminology, classification and coding standards, and associated resources to promote creation of more effective and interoperable biomedical information systems and services, including electronic health records. More information...

Metathesaurus License
UMLSKS
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UMLS® Reference Manual
Requires active UMLS Metathesaurus License and UMLSKS login account.

New Users

Licensing Information
Basics Tutorial
Glossary
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UMLS Knowledge Sources

Documentation for:

Metathesaurus
Semantic Network
SPECIALIST Lexicon and Lexical Tools
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User Education

Webcasts
Quick Tours
Presentations
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Implementation Resources

For advanced users:

MetamorphoSys
Database Query Diagrams
Load Scripts
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UMLS News

SNOMED CT^®: International Release and Developer Preview, July 2010, available for download….

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Related Resources

MeSH^®
RxNorm
SNOMED CT^®

Last reviewed: 02 August 2010
Last updated: 02 August 2010
First published: 29 July 2009
Metadata| Permanence level: Permanence Not Guaranteed

UMLS®