Supp non-insulin inf cath/wk
Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately)
curl https://api.healthcare.dev/v1/codes/hcpcs/A4221 \ -H "Authorization: Bearer $HDEV_API_KEY"
{
"data": {
"code": "A4221",
"parent": null,
"status": "active",
"system": "hcpcs",
"display": "Supp non-insulin inf cath/wk",
"billable": true,
"attributes": {
"betos": "D1E",
"coverage": "C",
"action_code": "N",
"type_of_service": "P",
"pricing_indicator": "34",
"action_effective_date": "2017-01-01"
},
"description": "Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately)",
"replaced_by": [],
"effective_end": null,
"effective_start": "1997-01-01",
"care_categories": [
"infusion-pumps"
],
"care_category_details": [
{
"slug": "infusion-pumps",
"name": "Infusion pumps and supplies",
"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 A4221-A4222"
}
],
"as_of": "2026-10-01T00:00:00.000Z"
}
]
},
"meta": {
"source": "cms-hcpcs",
"data_version": "2026-10"
}
}CMS attributes
Change history
A4221 has been in effect since 1997-01-01. 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/A4221 \ -H "Authorization: Bearer $HDEV_API_KEY"
Using the healthcare.dev MCP server, look up HCPCS Level II code A4221. 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.