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Y84.2

Radiolog proc/radiothrpy cause abn react/compl, w/o misadvnt

Radiological procedure and radiotherapy as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure

Code system
ICD-10-CM
Status
Active
Billable
Yes
In effect from
2026-10-01
Request
curl https://api.healthcare.dev/v1/codes/icd10cm/Y84.2 \
  -H "Authorization: Bearer $HDEV_API_KEY"
200 OK · application/json
{
  "data": {
    "code": "Y84.2",
    "parent": "Y84",
    "status": "active",
    "system": "icd10cm",
    "display": "Radiolog proc/radiothrpy cause abn react/compl, w/o misadvnt",
    "billable": true,
    "description": "Radiological procedure and radiotherapy as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure",
    "replaced_by": [],
    "effective_end": null,
    "effective_start": "2026-10-01",
    "care_categories": [
      "complications-of-care"
    ],
    "care_category_details": [
      {
        "slug": "complications-of-care",
        "name": "Complications of medical care",
        "confidence": 0.95,
        "derivation": "source_stated",
        "evidence": [
          {
            "url": "https://www.cms.gov/medicare/coding-billing/icd-10-codes",
            "anchor": "ICD-10-CM block Y62-Y84"
          }
        ],
        "as_of": "2026-10-01T00:00:00.000Z"
      }
    ]
  },
  "meta": {
    "source": "cms-icd10",
    "data_version": "fy2027"
  }
}

Hierarchy

Where Y84.2 sits

Parent codes

  1. Y84Oth medical procedures cause abn react/compl, w/o misadvnt

Child codes

None: Y84.2 is a billable code at the most specific level.

Change history

Lifecycle

Y84.2 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 Y84.2 from code or an agent

curl
curl https://api.healthcare.dev/v1/codes/icd10cm/Y84.2 \
  -H "Authorization: Bearer $HDEV_API_KEY"
MCP prompt
Using the healthcare.dev MCP server, look up ICD-10-CM code Y84.2. 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.