Screening colonoscopy: how much does Medicare pay?

Nationally, the Q3 2026 Physician Fee Schedule pays $378.43 in an office (non-facility) setting and $165.00 in a facility setting for G0121. Your local amount differs — the national figure applies geographic index values of 1.000, and Medicare then pays 80% of the allowed amount after the deductible is met.

Procedure · Updated Aug 1, 2026

Screening colonoscopy: CPT code and Medicare rate

A colonoscopy done for screening rather than to investigate symptoms. G0121 covers a patient at average risk; G0105 is used when personal or family history puts the patient at high risk.

Also called: colon cancer screening, routine colonoscopy, preventive colonoscopy.

Usually billed as

G0121 Screening Colonoscopy, Average Risk

Office (non-facility): $378.43
Facility: $165.00

National amounts for the Q3 2026 release (July 1 – September 30, 2026), using geographic index values of 1.000. Your local rate differs — open the code page for the locality breakdown.

If a polyp is found and removed during a screening colonoscopy, the procedure is generally reported with the therapeutic code (such as 45385) instead.

Related codes

Codes worth checking before you settle on G0121.

Code	What it covers	Office	Facility
G0105	Colonoscopy Screening, High-Risk Patient	$378.10	$164.67
45378	Diagnostic Colonoscopy	$378.10	$164.67
45385	Colonoscopy with Lesion Removal (Snare)	$500.01	$223.45

A dash means the code has no national amount in this release — it may be carrier-priced, bundled, or not separately payable. That is never the same as $0.

Common questions

Screening colonoscopy: which code is it?: G0121 — Screening Colonoscopy, Average Risk. A colonoscopy done for screening rather than to investigate symptoms. G0121 covers a patient at average risk; G0105 is used when personal or family history puts the patient at high risk.
Screening colonoscopy: how much does Medicare pay?: Nationally, the Q3 2026 Physician Fee Schedule pays $378.43 in an office (non-facility) setting and $165.00 in a facility setting for G0121. Your local amount differs — the national figure applies geographic index values of 1.000, and Medicare then pays 80% of the allowed amount after the deductible is met.
Screening colonoscopy: what else affects the billing?: If a polyp is found and removed during a screening colonoscopy, the procedure is generally reported with the therapeutic code (such as 45385) instead.

Need the rate where you practice?

Every code page carries the full locality breakdown, the RVU and GPCI inputs, and the release that answered.

Open the code page

Keep exploring

All procedures How Medicare pays Office vs. facility rates Check a medical bill

This page maps everyday language to the code a claim normally carries. It is general information about how Medicare prices a service, not coding advice for a specific claim — the correct code always depends on what was actually documented and performed.

Did this answer your question about Screening colonoscopy?

We're building this out in the open. Tell us what you were actually trying to work out and we'll either answer you directly or build the page that does.