UMLS

Auth Required (NLM) 4 tools

Map between terminologies. Crosswalk codes, search concepts, explore relations.

Overview

UMLS (Unified Medical Language System) links similar concepts across 200+ medical vocabularies including SNOMED CT, ICD-10, RxNorm, and LOINC. Essential for terminology mapping and interoperability.

Prerequisites

UMLS license required. Register at uts.nlm.nih.gov and generate an API key.

Available Tools

Tool	Description
`umls_lookup`	Look up a concept by CUI
`umls_search`	Search concepts by term
`umls_crosswalk`	Map codes between terminologies
`umls_relations`	Get related concepts

Configuration

{
  "mcpServers": {
    "umls": {
      "command": "/path/to/umls-mcp",
      "env": {
        "UMLS_API_KEY": "your-api-key"
      }
    }
  }
}

Common Source Vocabularies

Abbreviation	Full Name
`SNOMEDCT_US`	SNOMED CT (US Edition)
`ICD10CM`	ICD-10-CM
`RXNORM`	RxNorm
`LNC`	LOINC
`CPT`	Current Procedural Terminology

See example queries