G9933 – Adenoma(s) or colorectal cancer detected during screening colonoscopy

HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)

Discontinued December 31, 2020 Carrier judgment

HCPCS codeG9933
Long description
Adenoma(s) or colorectal cancer detected during screening colonoscopy
Short description
Canc detectd during col scrn
Pricing indicator
00 Not separately priced by Part B (bundled, not covered or Part A only)
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
Z2 Undefined codes
Added
January 1, 2018
Last change
January 1, 2021 – No change
Termination date
December 31, 2020

Frequently asked questions

What is HCPCS code G9933?

G9933 is a HCPCS Level II code for adenoma(s) or colorectal cancer detected during screening colonoscopy. It was discontinued on December 31, 2020.

Does Medicare cover G9933?

The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby G codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.