HIMSS Word of the Day #104: Unified Medical Language System (UMLS)
The Unified Medical Language System (UMLS), produced by the National Library of Medicine, links many biomedical vocabularies and provides tools that help software recognize when different terms mean the same concept. This post explains the Metathesaurus, Semantic Network, and SPECIALIST Lexicon, how the UMLS supports mapping and NLP, and how it differs from the terminologies it contains.