In111 ibritumomab, dx
Indium in-111 ibritumomab tiuxetan, diagnostic, per study dose, up to 5 millicuries
curl https://api.healthcare.dev/v1/codes/hcpcs/A9542 \ -H "Authorization: Bearer $HDEV_API_KEY"
{
"data": {
"code": "A9542",
"parent": null,
"status": "active",
"system": "hcpcs",
"display": "In111 ibritumomab, dx",
"billable": true,
"attributes": {
"betos": "I1E",
"coverage": "C",
"action_code": "N",
"type_of_service": "4",
"pricing_indicator": "51",
"action_effective_date": "2025-01-01"
},
"description": "Indium in-111 ibritumomab tiuxetan, diagnostic, per study dose, up to 5 millicuries",
"replaced_by": [],
"effective_end": null,
"effective_start": "2006-01-01",
"care_categories": [
"imaging-agents"
],
"care_category_details": [
{
"slug": "imaging-agents",
"name": "Imaging and contrast agents",
"confidence": 0.95,
"derivation": "source_stated",
"evidence": [
{
"url": "https://www.cms.gov/medicare/coding-billing/healthcare-common-procedure-system/quarterly-update",
"anchor": "HCPCS Level II range A9500-A9700"
}
],
"as_of": "2026-10-01T00:00:00.000Z"
}
]
},
"meta": {
"source": "cms-hcpcs",
"data_version": "2026-10"
}
}CMS attributes
Change history
A9542 has been in effect since 2006-01-01. This page shows HCPCS Level II release 2026-10.
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
curl https://api.healthcare.dev/v1/codes/hcpcs/A9542 \ -H "Authorization: Bearer $HDEV_API_KEY"
Using the healthcare.dev MCP server, look up HCPCS Level II code A9542. Tell me what it covers, whether it is active and since when, and any CMS attributes it has.
Source: CMS, release 2026-10. Public domain (D-series CDT codes excluded). Reference data, not medical or billing advice.