-
About the UMLS
-
FAQ
-
Homepage
-
License
-
Support
-
UMLS Quick Start Guide
-
UMLS Reference Manual
-
Implementation Resources
- MetamorphoSys
- MetaMap and MetaMap Transfer (MMTx)
- UMLS Applications
- UMLS Community
- UMLS Database Query Diagrams
- How to find all information associated with a particular UMLS concept (CUI value)
- How to find all information associated with a particular atom (AUI value)
- How to find all information associated with a particular source concept (SCUI value)
- How to find all information associated with the metadata of a particular atom (AUI value)
- How to find all information associated with the metadata of a particular relationship (RUI value) or attribute (ATUI value)
- How to perform searches for normalized strings, normalized words, or regular words
- How to perform searches in the UMLS history files (MRAUI.RRF and MRCUI.RRF)
- How to perform searches in the source history file (MRHIST.RRF)
- How to perform searches in the mapping files
- How to perform searches for root and versioned source metadata concepts
- How to perform searches for content view metadata concepts
- How to perform searches for subset metadata concepts
- UMLS Load Scripts
-
Knowledge Sources
- Semantic Network
- SPECIALIST Lexicon and Lexical Tools
- Metathesaurus
- Forthcoming Releases
- UMLS Metathesaurus Source Evaluation Questions
- Vocabularies in the UMLS Metathesaurus
- Metathesaurus - Release Information
- Abbreviations Used in Data Elements
- Attribute Names
- Columns and Data Elements
- Content Views
- License Agreement
- New and Updated Sources
- New and Updated Sources - Expanded Representation Information
- Notes and Bugs
- Source and Term Types: Default Order of Precedence and Suppressibility
- Source Vocabularies
- Statistics
- UMLS Source Release Documentation
Unified Medical Language System® (UMLS®)
UMLS Site Map
-
Licensed Content Downloads
- RxNorm Files
- SNOMED CT Files
- UMLS Knowledge Sources: File Downloads
-
Mapping Projects
-
New Users
- Glossary
- Basics Tutorial
- Licensing Information
- Listserv
- Step-by-Step Instructions: Validate the UMLS Release files
- Step-by-Step Instructions: Install the Semantic Network
- Step-by-Step Instructions: Install the SPECIALIST Lexicon and Lexical Tools
- Step-by-Step Instructions: Create an English only SNOMED CT Metathesaurus subset
-
News
-
RxNorm
-
SNOMED CT
-
User Education
