Colonoscopy cost in St. Louis, MO without insurance
In the St. Louis, MO-IL area, the median cash price for Colonoscopy is $1,351.35 across 6 hospitals. The lowest, $820.30, is at Mercy Hospital St Louis (Saint Louis). The US median is $1,443.50.
A colonoscopy examines the whole colon with a flexible camera, and one procedure usually produces several bills: the facility, the gastroenterologist, anesthesia, and pathology if tissue is removed. The key price detail is that a planned exam can become a biopsy (45380) or polyp removal (45385) during the procedure, which changes the code and adds a pathology charge.
Collected Sep 25, 2026 One price per hospital: its lowest outpatient cash price for the code
Colonoscopy prices in St. Louis, MO by type
45378 is a diagnostic colonoscopy with nothing removed and is used in the state table; 45380 adds biopsies and 45385 adds polyp removal with a snare. G0121 and G0105 are Medicare screening codes for average-risk and high-risk patients, 45330 is a flexible sigmoidoscopy of the lower colon only, and 82274 is the at-home stool test (FIT).
| Procedure | Hospitals | Lowest | Median | US median |
|---|---|---|---|---|
| Colonoscopy Colonoscopy, diagnostic · code 45378 | 6 | $820.30 | $1,351.35 | $1,443.50 |
| Colonoscopy with biopsy Colonoscopy with tissue sample · code 45380 | 6 | $1,245.20 | $4,545.56 | $1,464.23 |
| Colonoscopy with polyp removal Colonoscopy with polyp removal · code 45385 | 5 | $2,939.20 | $4,412.40 | $1,591.00 |
| High-risk screening colonoscopy Screening colonoscopy, high risk of colorectal cancer (Medicare code) · code G0105 | 1 | $3,175.92 | $3,175.92 | $1,249.00 |
| Sigmoidoscopy Flexible sigmoidoscopy, diagnostic (lower colon only) · code 45330 | 7 | $162.75 | $1,035.45 | $1,094.55 |
| FIT stool test Stool test for hidden blood by immunoassay (FIT) · code 82274 | 6 | $29.90 | $50.05 | $53.95 |
| Stool blood test (FOBT) Stool test for hidden blood (guaiac FOBT) · code 82270 | 11 | $10.40 | $30.00 | $22.95 |
Outpatient cash prices in St. Louis, MO. Each hospital counts once, at its lowest cash price for the code; prices for both sides of the body and inpatient prices are not mixed in. Pick a procedure to compare every hospital in the area.
Lowest Colonoscopy prices in St. Louis, MO
- Mercy Hospital St Louis, Saint Louis$820.30
- Ranken Jordan Home for Convalescent Crippled Children Hospital, Maryland Heights$897.60
- Mercy Hospital South, Saint Louis$1,115.40
- Mercy Hospital Jefferson, Festus$1,587.30
- Mercy Hospital Washington, Washington$2,801.36
Colonoscopy cost in other areas nearby
Paying cash: what to do
- Ask for a self-pay quote that covers the facility, the gastroenterologist and anesthesia, and ask which of them bill separately.
- Ask for prices for 45380 and 45385 as well, since no one knows in advance whether a biopsy or polyp removal will be needed.
- Ambulatory surgery centers often charge less than hospital outpatient departments for the same colonoscopy, so ask the gastroenterologist where they perform it.