"Is this going to cost me anything?" is one of the most common questions I hear about colonoscopy. The honest answer: usually not, if it's a true screening exam. But a few situations can turn a $0 test into a bill, and where you have it done matters too.
When a screening colonoscopy is $0
- You're 45 or older, at average risk, with no symptoms. Medicare and most private plans cover screening with no copay or deductible.
- Your stool test (FIT or Cologuard) or blood test came back abnormal. The follow-up colonoscopy now counts as part of screening, so it's covered the same way.
- A polyp is removed during your screening. On most private plans, removing the polyp, the lab work and the anesthesia stay covered as part of screening.
When you might get a bill
| Situation | Medicare | Most private plans |
|---|---|---|
| Average-risk screening, nothing found | $0 | $0 |
| Follow-up colonoscopy after an abnormal stool or blood test | $0 | $0 |
| Screening where a polyp is removed or a biopsy is taken | 15% coinsurance in 2026, 10% in 2027–2029, $0 from 2030 | Usually $0 |
| Repeat colonoscopy because you've had precancerous polyps (surveillance) | $0 if you have no symptoms | May count toward your deductible |
| Colonoscopy for symptoms (bleeding, anemia, diarrhea, pain) | Deductible and coinsurance | Deductible and coinsurance |
The big one is the last row. If the reason for the colonoscopy is a symptom, it's a diagnostic test, not screening, and normal cost-sharing applies. That's not a billing trick; it's how the coverage rules are written.
Surgery center or hospital: the same procedure, different prices
Where you have the colonoscopy can change what you pay when cost-sharing does apply. Medicare's own price lookup shows these national averages for 2026:
| Procedure | Surgery center: total / you pay | Hospital outpatient: total / you pay |
|---|---|---|
| Colonoscopy with polyp removal | $879 / $175 | $1,445 / $288 |
| Diagnostic colonoscopy | $674 / $134 | $1,114 / $222 |
| Upper endoscopy with biopsy | $620 / $123 | $1,049 / $209 |
Across GI procedures, the patient share at a surgery center runs about 40% lower. These are Medicare averages before any supplemental plan; private plan prices vary more.
Questions to ask before your colonoscopy
- Ask the office how it will be billed: screening or diagnostic?
- If you have a family history or past polyps, ask your plan whether that's covered as screening.
- Ask your plan what you'd owe if a polyp is removed.
- Ask whether the procedure is at a surgery center or a hospital, and what each would cost on your plan.
- If you have a high-deductible plan, ask for the price in writing ahead of time.
Don't let cost worries keep you from screening. For most people at average risk, the screening exam itself is free, and catching a polyp early costs far less, in every sense, than treating cancer later.
— Brian Frank, MD
Questions? Call (813) 400-0543 or send a message.
Board-certified gastroenterologist (ABIM). Published November 3, 2026.
Coverage rules and prices change and vary by plan; check with your insurer. Prices: Medicare Procedure Price Lookup, 2026 national averages. This page is general information, not medical or billing advice. For a medical emergency, call 911.