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G9421

Lung cx bx rpt no doc class

Primary non-small cell lung cancer lung biopsy and cytology specimen report does not document classification into specific histologic type or histologic type does not follow iaslc guidance or is classified as nsclc-nos but without an explanation

Code system
HCPCS Level II
Status
Active
Billable
Yes
In effect from
2015-01-01
Request
curl https://api.healthcare.dev/v1/codes/hcpcs/G9421 \
  -H "Authorization: Bearer $HDEV_API_KEY"
200 OK · application/json
{
  "data": {
    "code": "G9421",
    "parent": null,
    "status": "active",
    "system": "hcpcs",
    "display": "Lung cx bx rpt no doc class",
    "billable": true,
    "attributes": {
      "betos": "Z2",
      "coverage": "C",
      "action_code": "N",
      "type_of_service": "1",
      "pricing_indicator": "00",
      "action_effective_date": "2022-01-01"
    },
    "description": "Primary non-small cell lung cancer lung biopsy and cytology specimen report does not document classification into specific histologic type or histologic type does not follow iaslc guidance or is classified as nsclc-nos but without an explanation",
    "replaced_by": [],
    "effective_end": null,
    "effective_start": "2015-01-01",
    "care_categories": [],
    "care_category_details": []
  },
  "meta": {
    "source": "cms-hcpcs",
    "data_version": "2026-10"
  }
}

CMS attributes

G9421 in the HCPCS file

betos
Z2
coverage
C
action code
N
type of service
1
pricing indicator
00
action effective date
2022-01-01

Change history

Lifecycle

G9421 has been in effect since 2015-01-01. 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 G9421 from code or an agent

curl
curl https://api.healthcare.dev/v1/codes/hcpcs/G9421 \
  -H "Authorization: Bearer $HDEV_API_KEY"
MCP prompt
Using the healthcare.dev MCP server, look up HCPCS Level II code G9421. 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.