HCPCS Code G9911

Clinically node negative (t1n0m0 or t2n0m0) invasive breast cancer before or after neoadjuvant systemic therapy
Code effective Jan 01, 2018

HCPCS Section
Procedures/Professional Services (Temporary Codes)

G9911 is a valid 2026 HCPCS code meaning Clinically node negative (t1n0m0 or t2n0m0) invasive breast cancer before or after neoadjuvant systemic therapy or (Node neg pre/post syst ther) for short. HCPCS G9911 has been effective since 01/01/2018 and applies to Medical care.

HCPCS Code Details - G9911

HCPCS Level II Code
Section G - Procedures/Professional Services (Temporary Codes)
HCPCS Code G9911
Description

Long description:
Clinically node negative (t1n0m0 or t2n0m0) invasive breast cancer before or after neoadjuvant systemic therapy

Short description:
Node neg pre/post syst ther

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, 2018
Date added Added Jan 01, 2018

See also

  • HCPCS G9910 · Patients age 66 or older in institutional special needs plans (snp) or residing in long-term care with pos code 32, 33, 34, 54 or 56 for more than 90 consecutive days during the measurement period

  • HCPCS G8879 · Clinically node negative (t1n0m0 or t2n0m0) invasive breast cancer

  • HCPCS G9912 · Hepatitis b virus (hbv) status assessed and results interpreted prior to initiating anti-tnf (tumor necrosis factor) therapy

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 6/23/2026

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