Anticoag clinic per session
Anticoagulation clinic, inclusive of all services except laboratory tests, per session
curl https://api.healthcare.dev/v1/codes/hcpcs/S9401 \ -H "Authorization: Bearer $HDEV_API_KEY"
{
"data": {
"code": "S9401",
"parent": null,
"status": "active",
"system": "hcpcs",
"display": "Anticoag clinic per session",
"billable": true,
"attributes": {
"betos": "Z2",
"coverage": "I",
"action_code": "N",
"type_of_service": "9",
"pricing_indicator": "00",
"action_effective_date": "2002-04-01"
},
"description": "Anticoagulation clinic, inclusive of all services except laboratory tests, per session",
"replaced_by": [],
"effective_end": null,
"effective_start": "2002-04-01",
"care_categories": [
"blood-thinners"
],
"care_category_details": [
{
"slug": "blood-thinners",
"name": "Blood thinners",
"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 code S9401"
}
],
"as_of": "2026-10-01T00:00:00.000Z"
}
]
},
"meta": {
"source": "cms-hcpcs",
"data_version": "2026-10"
}
}CMS attributes
Change history
S9401 has been in effect since 2002-04-01. 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/S9401 \ -H "Authorization: Bearer $HDEV_API_KEY"
Using the healthcare.dev MCP server, look up HCPCS Level II code S9401. 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.