Q0112

Potassium hydroxide preps

All potassium hydroxide (koh) preparations

Code system: HCPCS Level II
Status: Active
Billable: Yes
In effect from: 1994-01-01

Request

curl https://api.healthcare.dev/v1/codes/hcpcs/Q0112 \
  -H "Authorization: Bearer $HDEV_API_KEY"

200 OK · application/json

{
  "data": {
    "code": "Q0112",
    "parent": null,
    "status": "active",
    "system": "hcpcs",
    "display": "Potassium hydroxide preps",
    "billable": true,
    "attributes": {
      "betos": "T1H",
      "coverage": "C",
      "action_code": "N",
      "type_of_service": "5",
      "pricing_indicator": "21",
      "action_effective_date": "1994-01-01"
    },
    "description": "All potassium hydroxide (koh) preparations",
    "replaced_by": [],
    "effective_end": null,
    "effective_start": "1994-01-01",
    "care_categories": [
      "lab-tests"
    ],
    "care_category_details": [
      {
        "slug": "lab-tests",
        "name": "Lab tests",
        "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 Q0111-Q0115"
          }
        ],
        "as_of": "2026-10-01T00:00:00.000Z"
      }
    ]
  },
  "meta": {
    "source": "cms-hcpcs",
    "data_version": "2026-10"
  }
}

CMS attributes

Q0112 in the HCPCS file

betos: T1H
coverage: C
action code: N
type of service: 5
pricing indicator: 21
action effective date: 1994-01-01

Change history

Lifecycle

Q0112 has been in effect since 1994-01-01. 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

Look up Q0112 from code or an agent

curl

curl https://api.healthcare.dev/v1/codes/hcpcs/Q0112 \
  -H "Authorization: Bearer $HDEV_API_KEY"

MCP prompt

Using the healthcare.dev MCP server, look up HCPCS Level II code Q0112. Tell me what it covers, whether it is active and since when, and any CMS attributes it has.

Get a free key HCPCS docs Connect the MCP server

Source: CMS, release 2026-10. Public domain (D-series CDT codes excluded). Reference data, not medical or billing advice.