C2919311

UMLS CUI C2919311 is "Dialysis fluid specimen obtained before dialysis".

Dialysis fluid specimen obtained before dialysis (CUI C2919311) groups: 1 SNOMED CT concept.

Dialysis fluid specimen obtained before dialysis corresponds to SNOMED CT concept 444946008.

The Unified Medical Language System is the NLM's meta-terminology that unifies SNOMED CT, ICD-10, ICD-11, RxNorm, LOINC, MeSH, and around 200 other source vocabularies under a single concept identifier (CUI). One UMLS CUI can group dozens of synonymous codes from different terminologies.

A CUI is a stable identifier (like C0011860) that points at a single clinical idea regardless of how that idea is encoded in any specific vocabulary. CUIs are the most reliable way to bridge between terminologies when you need to compare or merge data from multiple sources.

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