Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at opm.gov.
Enter a keyword or phrase to search for the UMLS information.
Search Keyword or phrase:
The CUI is the Concept Unique Identifier. Beginning with C followed by 7 digits. Example: C0001779 (age).
Search CUI:
Concept:
Semantic Type:
Definition:
A CSV (comma-separated values) file is a text file with data stored in tabular format. Each row represents one record. Each record consists of more than one field, separated by commas.
Download sample files:
Please upload a CDE .csv file with the data element terms, and an exclusion list (stopwords) .csv file if necessary.
Data Element CSV File:
Stopwords CSV File:
Enter one or more keywords or phrases, separated by | for example: unknown | not applicable.
Search Permissble Value:
The UMLS Semantic Network provides a consistent categorization of all concepts represented in the UMLS Metathesaurus.
