HCPCS Code G9421

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 effective Jan 01, 2022

HCPCS Section
Procedures/Professional Services (Temporary Codes)

G9421 is a valid 2026 HCPCS code meaning 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 or (Lung cx bx rpt no doc class) for short. HCPCS G9421 has been effective since 01/01/2022 and applies to Medical care.

HCPCS Code Details - G9421

HCPCS Level II Code
Section G - Procedures/Professional Services (Temporary Codes)
HCPCS Code G9421
Description

Long 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

Short description:
Lung cx bx rpt no doc class

HCPCS Pricing indicator 00 - Physician Fee Schedule And Non-Physician Practitioners - Service not separately priced by part B (e.g., services not covered, bundled, used by Part A only, etc.)
Multiple pricing indicator 9 - Not applicable as HCPCS not priced separately by part B or value is not established
Coverage code C - Carrier judgment
BETOS2 code Z2 - Undefined codes
HCPCS Action code N - No maintenance for this code
Type of service 1 - Medical care
Effective date Effective Jan 01, 2022
Date added Added Jan 01, 2015

See also

  • HCPCS G9420 · Specimen site other than anatomic location of lung or is not classified as primary non-small cell lung cancer

  • HCPCS G9418 · Primary non-small cell lung cancer lung biopsy and cytology specimen report documents classification into specific histologic type following iaslc guidance or classified as nsclc-nos with an explanation

  • HCPCS G9422 · Primary lung carcinoma resection report documents pt category, pn category and for non-small cell lung cancer, histologic type (e.g., squamous cell carcinoma, adenocarcinoma and not nsclc-nos)

1 Two-digit numeric codes are Level I code modifiers copyrighted© by the American Medical Association's Current Procedural Terminology (CPT).

2 BETOS stands for “Berenson-Eggers Type Of Service”

HCPCS Level II codes and descriptors are approved and maintained jointly by the alpha-numeric editorial panel (consisting of CMS, the Health Insurance Association of America, and the Blue Cross and Blue Shield Association). — Updated 7/13/2026

CPT® is a registered trademark of the American Medical Association (AMA). All rights reserved.