UMLS Terminology Services

The UMLS Terminology Services (UTS) allows you to:

Request a UMLS Metathesaurus License and create a UTS account

Search and display content from UTS Applications including:

- Metathesaurus Browser

- Semantic Network Browser

- SNOMED CT Browser

Download data files including:

- UMLS Knowledge Sources

- RxNorm weekly and monthly updates

- SNOMED CT

- CORE Problem List and Route of Administration Subsets of SNOMED CT

Query data remotely via Web Services (see API Documentation)

Complete UMLS Annual Report and SNOMED CT® Affiliate Reports .

You can request a Licence

UMLS Terminology Services (UTS) provide both web interfaces as well as Web Services to search and retrieve UMLS data. We welcome you to contact us with your comments and suggestions to improve the UTS.

So from now on, you are welcome to UTS: https://uts.nlm.nih.gov//uts.html