Diphenhydramine hcl 50mg
Diphenhydramine hydrochloride, 50 mg, oral, fda approved prescription anti-emetic, for use as a complete therapeutic substitute for an iv anti-emetic at time of chemotherapy treatment not to exceed a 48 hour dosage regimen
curl https://api.healthcare.dev/v1/codes/hcpcs/Q0163 \ -H "Authorization: Bearer $HDEV_API_KEY"
{
"data": {
"code": "Q0163",
"parent": null,
"status": "active",
"system": "hcpcs",
"display": "Diphenhydramine hcl 50mg",
"billable": true,
"attributes": {
"betos": "O1D",
"coverage": "D",
"action_code": "N",
"type_of_service": "1",
"pricing_indicator": "51",
"action_effective_date": "1998-04-01"
},
"description": "Diphenhydramine hydrochloride, 50 mg, oral, fda approved prescription anti-emetic, for use as a complete therapeutic substitute for an iv anti-emetic at time of chemotherapy treatment not to exceed a 48 hour dosage regimen",
"replaced_by": [],
"effective_end": null,
"effective_start": "1998-04-01",
"care_categories": [
"digestive-medicines"
],
"care_category_details": [
{
"slug": "digestive-medicines",
"name": "Stomach and digestion medicines",
"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 Q0161-Q0181"
}
],
"as_of": "2026-10-01T00:00:00.000Z"
}
]
},
"meta": {
"source": "cms-hcpcs",
"data_version": "2026-10"
}
}CMS attributes
Change history
Q0163 has been in effect since 1998-04-01. 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/Q0163 \ -H "Authorization: Bearer $HDEV_API_KEY"
Using the healthcare.dev MCP server, look up HCPCS Level II code Q0163. 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.