ICD-10-CM exact code lookup API

Resolves an exact ICD-10-CM code to its canonical description, billable status, chapter, and immediate child codes. Answers 'What does E11.9 mean?', 'Is this ICD-10 code billable?'.

Price$0.01per request

MethodPOST

Route/v1/health/clinical-icd10-lookup

StatusLive

MIME typeapplication/json

Rate limit60/minute

Cache604800s public

healthclinicalicd10icd-10-cmdiagnosismedical-codinglookupbillable

API URLhttps://x402.hexl.dev/v1/health/clinical-icd10-lookup

Integration docs

Example request

{
  "code": "E11.9"
}

Example response

{
  "code": "E11.9",
  "name": "Type 2 diabetes mellitus without complications",
  "billable": true,
  "chapter": "E",
  "childCodes": [],
  "codingSystem": "ICD-10-CM",
  "disclaimer": "Informational reference/terminology data only — NOT medical advice. Verify against authoritative sources and a qualified professional before any clinical, billing, or treatment decision."
}

Input schema

{
  "type": "object",
  "required": [
    "code"
  ],
  "properties": {
    "code": {
      "type": "string",
      "description": "Exact ICD-10-CM code, e.g. E11.9"
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}