Part of the National Institutes of Health, NLM provides information services to support the advancement of science, the progress of health care, and the public health. The Library’s electronic information services (including MEDLINE on, consumer health information on, molecular biology and genomic resources, and many others) are available free of charge worldwide from
NLM serves as the central coordinating body for clinical terminology standards within the US. The Library supports the development, enhancement, and distribution of clinically specific vocabularies (e.g., SNOMED CT®, LOINC®, RxNorm®) to facilitate the exchange of clinical data and improve retrieval of health information. NLM’s activities in support of health data standardization are described at
NLM makes SNOMED CT available in multiple formats, both in its native file structure and as part of the Unified Medical Language System® (UMLS®) Metathesaurus®, where it is linked to more than 100 other biomedical terminologies in many languages and to lexical processing tools. The NLM distributes SNOMED CT free of charge to US and international users, under the terms of the standard affiliate license which is incorporated into the UMLS license agreement.

Information about obtaining SNOMED CT from the NLM is available at

For more information users should contact NLM Customer service at

Appointed Representatives

General Assembly: Dianne Babski

Member Forum: Patrick McLaughlin and Nick McGraw

Contact Details

National Library of Medicine

National Institutes of Health
Department of Health and Human Services
8600 Rockville Pike
Bethesda, Maryland 20894 USA

Telephone: (301) 594-5983

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