`umls_crosswalk`

Pack: umls · Endpoint: https://gateway.pipeworx.io/umls/mcp

Crosswalk a code from one vocabulary to others. Given a code in a source vocabulary (e.g. an ICD-10-CM code), returns the concepts that share the same UMLS CUI in other vocabularies (SNOMED CT, RxNorm, LOINC, etc.). Example: umls_crosswalk({ source: “ICD10CM”, code: “I21.9”, _apiKey: “your-key” })

Parameters

Name	Type	Required	Description
`source`	string	yes	Source vocabulary abbreviation (SAB) the code belongs to, e.g. “ICD10CM”, “SNOMEDCT_US”, “RXNORM”, “LNC”, “MSH”.
`code`	string	yes	The code within that source vocabulary, e.g. “I21.9”
`_apiKey`	string	yes	Free UMLS UTS API key

Example call

Arguments

{
  "source": "ICD10CM",
  "code": "I21.9",
  "_apiKey": "your-umls-api-key"
}

curl

curl -X POST https://gateway.pipeworx.io/umls/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"umls_crosswalk","arguments":{"source":"ICD10CM","code":"I21.9","_apiKey":"your-umls-api-key"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('umls_crosswalk', {
  "source": "ICD10CM",
  "code": "I21.9",
  "_apiKey": "your-umls-api-key"
});

More examples

{
  "source": "SNOMEDCT_US",
  "code": "22298006",
  "_apiKey": "your-umls-api-key"
}

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "umls": {
      "url": "https://gateway.pipeworx.io/umls/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

umls_crosswalk