C0345073

UMLS CUI C0345073 is "Aberrant retroesophageal brachiocephalic artery".

Aberrant retroesophageal brachiocephalic artery (CUI C0345073) groups: 1 SNOMED CT concept.

Aberrant retroesophageal brachiocephalic artery corresponds to SNOMED CT concept 253667008.

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.

Every UMLS concept page lists the codes it groups together. That gives you a free crosswalk: a SNOMED concept and an ICD-10 code that share a CUI describe the same clinical idea. Our cross_references API returns these groupings inline.

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