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T23.399

Burn of 3rd deg mu sites of unsp wrist and hand

Burn of third degree of multiple sites of unspecified wrist and hand

Code system
ICD-10-CM
Status
Active
Billable
No (header code)
In effect from
2026-10-01
Request
curl https://api.healthcare.dev/v1/codes/icd10cm/T23.399 \
  -H "Authorization: Bearer $HDEV_API_KEY"
200 OK · application/json
{
  "data": {
    "code": "T23.399",
    "parent": "T23.39",
    "status": "active",
    "system": "icd10cm",
    "display": "Burn of 3rd deg mu sites of unsp wrist and hand",
    "billable": false,
    "description": "Burn of third degree of multiple sites of unspecified wrist and hand",
    "replaced_by": [],
    "effective_end": null,
    "effective_start": "2026-10-01",
    "care_categories": [
      "burns"
    ],
    "care_category_details": [
      {
        "slug": "burns",
        "name": "Burns",
        "confidence": 0.95,
        "derivation": "source_stated",
        "evidence": [
          {
            "url": "https://www.cms.gov/medicare/coding-billing/icd-10-codes",
            "anchor": "ICD-10-CM block T20-T32"
          }
        ],
        "as_of": "2026-10-01T00:00:00.000Z"
      }
    ]
  },
  "meta": {
    "source": "cms-icd10",
    "data_version": "fy2027"
  }
}

Hierarchy

Where T23.399 sits

Change history

Lifecycle

T23.399 has been in effect since 2026-10-01. This page shows ICD-10-CM release fy2027.

Add as_of=YYYY-MM-DD to the request to get this code exactly as it was on a past date. The change feed (GET /v1/changes) lists what each release added, changed or retired across the whole dataset; a per-code change list isn't published yet.

Use it

Look up T23.399 from code or an agent

curl
curl https://api.healthcare.dev/v1/codes/icd10cm/T23.399 \
  -H "Authorization: Bearer $HDEV_API_KEY"
MCP prompt
Using the healthcare.dev MCP server, look up ICD-10-CM code T23.399. Tell me what it means, whether it is billable, whether it is active, and list its parent and child codes.

Source: CMS and CDC NCHS, release fy2027. Public domain. Reference data, not medical or billing advice.