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EVS makes available a number of terminologies through the browser and API that are produced by sources outside the NCI.



The UMLS is not published in entirety. Instead a number of subset ontologies are extracted and published.

Name

Original Source

Secured?

Size of subset

Processing Notes

LOINC

Logical Observation Identifiers Names and Codes

 

500M

 

MedDRA

Maintenance and Support Services Organization

[ Requires MSSO Subscription

http://www.meddramsso.com/mssoweb/subscriptions/index.htm]

193M

 

Snomed

International Health Terminology Standards Development Organization

Requires member country license

7.4G

 

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