Skip Navigation Bar

Unified Medical Language System® (UMLS®)

UMLS Downloads

Release Name Description
UMLS® 2015AB Release of the UMLS Knowledge Sources; archives dating from 2002
RxNorm
including Current Prescribable Content
Weekly and monthly RxNorm releases; monthly RxNorm Current Prescribable Content releases; archives dating from 2005
SNOMED CT® International Release (RF1 and RF2 version, RF1 compatibility tools) including ICD-9-CM Cross Map; ICD-10 Cross Maps; Spanish Edition; archives dating from 2007
US Edition of SNOMED CT Combines the SNOMED CT International Release and US Extension to SNOMED CT (terminology content accepted by the NLM as a formal extension to the International Release)
Nursing Problem List Subset of SNOMED CT SNOMED CT encoded Nursing Problem List Subset
CORE Subset of SNOMED CT Clinical Observations Recording and Encoding Subset of SNOMED CT
ROA Subset of SNOMED CT Route of Administration Subset of SNOMED CT
Convergent Medical Terminology (CMT) Kaiser Permanente is donating their CMT terminology content and related tooling to the IHTSDO in phases. Available items include: Mental Health Subset, Cardiology Problem List Subset, Top 2500 Problem List Subset.
SNOMED CT to ICD-10-CM Map Mapping of US Edition of SNOMED CT to ICD-10-CM; archives dating from 2012. Published by NLM.
ICD-9-CM Diagnostic Codes to SNOMED CT Map One-to-one and one-to-many mapping of ICD-9-CM Diagnostic Codes to US Edition of SNOMED CT; archives dating from 2012. Published by NLM.
ICD-9-CM Procedure Codes to SNOMED CT Map One-to-one and one-to-many mapping of ICD-9-CM Procedure Codes to US Edition of SNOMED CT; archives dating from 2013. Published by NLM.
Data Element Catalog Data element names required for capture in Electronic Health Record (EHR) technology certified under the 2014 Edition of the Office of the National Coordinator for Health Information Technology (ONC) Standards and Certification Criteria.