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S01.90XA

Unsp open wound of unspecified part of head, init encntr

Unspecified open wound of unspecified part of head, initial encounter

Code system
ICD-10-CM
Status
Active
Billable
Yes
In effect from
2026-10-01
Request
curl https://api.healthcare.dev/v1/codes/icd10cm/S01.90XA \
  -H "Authorization: Bearer $HDEV_API_KEY"
200 OK · application/json
{
  "data": {
    "code": "S01.90XA",
    "parent": "S01.90",
    "status": "active",
    "system": "icd10cm",
    "display": "Unsp open wound of unspecified part of head, init encntr",
    "billable": true,
    "description": "Unspecified open wound of unspecified part of head, initial encounter",
    "replaced_by": [],
    "effective_end": null,
    "effective_start": "2026-10-01",
    "care_categories": [
      "cuts-and-open-wounds"
    ],
    "care_category_details": [
      {
        "slug": "cuts-and-open-wounds",
        "name": "Cuts, bites and open wounds",
        "confidence": 0.95,
        "derivation": "source_stated",
        "evidence": [
          {
            "url": "https://www.cms.gov/medicare/coding-billing/icd-10-codes",
            "anchor": "ICD-10-CM category S01"
          }
        ],
        "as_of": "2026-10-01T00:00:00.000Z"
      }
    ]
  },
  "meta": {
    "source": "cms-icd10",
    "data_version": "fy2027"
  }
}

Hierarchy

Where S01.90XA sits

Parent codes

  1. S01Open wound of head
  2. S01.9Open wound of unspecified part of head
  3. S01.90Unspecified open wound of unspecified part of head

Child codes

None: S01.90XA is a billable code at the most specific level.

Change history

Lifecycle

S01.90XA 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 S01.90XA from code or an agent

curl
curl https://api.healthcare.dev/v1/codes/icd10cm/S01.90XA \
  -H "Authorization: Bearer $HDEV_API_KEY"
MCP prompt
Using the healthcare.dev MCP server, look up ICD-10-CM code S01.90XA. 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.