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Unified Medical Language System (UMLS)

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NCI_CareLex (Content Archive Resource Exchange Lexicon) - Synopsis

Search NCI_CareLex in the UMLS Metathesaurus
(requires a free UMLS license)

Web site:

The Content Archive Resource Exchange Lexicon (CareLex) is an open source content classification model for the BioPharmaceutical industry. The model supports content classification for the industry and facilitates interoperability through a standards-based approach.

Metathesaurus Update Frequency
CareLex is updated annually as part of the NCI Thesaurus in the Metathesaurus.

Sites Consulted

  1. CareLex Home [Internet]. [place unknown]:; c2013. CareLex Content Model; [cited 2014 Dec 02]. Available from: