G0104 – Colorectal cancer screening; flexible sigmoidoscopy
HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)
HCPCS codeG0104
- Long description
- Colorectal cancer screening; flexible sigmoidoscopy
- Short description
- Ca screen;flexi sigmoidscope
- Pricing indicator
11Priced using national RVUs (Physician Fee Schedule)- Medicare coverage
DSpecial coverage instructions apply- BETOS category
P8CEndoscopy - sigmoidoscopy- ASC
- Approved for ambulatory surgical centers
- Added
- January 1, 1998
- Last change
- January 1, 1998 – No change
Frequently asked questions
What is HCPCS code G0104?
G0104 is a HCPCS Level II code for colorectal cancer screening; flexible sigmoidoscopy.
Does Medicare cover G0104?
The HCPCS file lists coverage code D: Special coverage instructions apply. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby G codes
- G0086 – Limited (30 minutes) care management home care plan oversight. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility)
- G0087 – Comprehensive (60 minutes) care management home care plan oversight. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility)
- G0088 – Professional services, initial visit, for the administration of anti-infective, pain management, chelation, pulmonary hypertension, inotropic, or other intravenous infusion drug or biological (excluding chemotherapy or other highly complex drug or biological) for each infusion drug administration calendar day in the individual's home, each 15 minutes
- G0089 – Professional services, initial visit, for the administration of subcutaneous immunotherapy or other subcutaneous infusion drug or biological for each infusion drug administration calendar day in the individual's home, each 15 minutes
- G0090 – Professional services, initial visit, for the administration of intravenous chemotherapy or other highly complex infusion drug or biological for each infusion drug administration calendar day in the individual's home, each 15 minutes
- G0101 – Cervical or vaginal cancer screening; pelvic and clinical breast examination
- G0102 – Prostate cancer screening; digital rectal examination
- G0103 – Prostate cancer screening; prostate specific antigen test (psa)
- G0105 – Colorectal cancer screening; colonoscopy on individual at high risk
- G0106 – Colorectal cancer screening; alternative to g0104, screening sigmoidoscopy, barium enema
- G0108 – Diabetes outpatient self-management training services, individual, per 30 minutes
- G0109 – Diabetes outpatient self-management training services, group session (2 or more), per 30 minutes
- G0117 – Glaucoma screening for high risk patients furnished by an optometrist or ophthalmologist
- G0118 – Glaucoma screening for high risk patient furnished under the direct supervision of an optometrist or ophthalmologist
- G0120 – Colorectal cancer screening; alternative to g0105, screening colonoscopy, barium enema.
- G0121 – Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.