# clinical LOINC in UMLS

**URL:** <https://forum.loinc.org/t/clinical-loinc-in-umls/640>\
**Category:** other-clinical\
**Created:** [November 17, 2008, 7:19pm UTC](https://forum.loinc.org/t/clinical-loinc-in-umls/640 "2008-11-17T19:19:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sneiderman](https://forum.loinc.org/letter_avatar_proxy/v4/letter/s/4da419/32.png) [@sneiderman](https://forum.loinc.org/u/sneiderman)\
**Post date:** [November 17, 2008, 7:19pm UTC](https://forum.loinc.org/t/clinical-loinc-in-umls/640/1 "2008-11-17T19:19:49Z")

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Does anyone know how many clinical LOINC codes map to UMLS concepts (and how many do not)? Charles Sneiderman NLM

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**Author:** ![system](https://forum.loinc.org/uploads/default/original/1X/dbab97ce9b2987d788a376e254fcaae249f3b672.png) [@system](https://forum.loinc.org/u/system)\
**Post date:** [June 23, 2023, 3:36pm UTC](https://forum.loinc.org/t/clinical-loinc-in-umls/640/2 "2023-06-23T15:36:20Z")

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