Colonoscopy, diagnostic in Seattle-Tacoma-Bellevue, WA — inpatient
In Seattle-Tacoma-Bellevue, WA, 6 hospitals list a cash price for Colonoscopy, diagnostic as an inpatient: from $1,423.00 to $5,952.50, with a median of $1,919.94. The lowest listed price is at Overlake Medical Center & Clinics.
Cash prices at 6 facilities across 4 cities for code 45378, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Seattle-Tacoma-Bellevue, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Overlake Medical Center & Clinics lowest Bellevue, WA Hc 45378 Colon Diag/Brushing | $1,423.00 | $2,846.00 | 50% | Apr 1, 2026 source file |
| Public Hospital Dist No 1 Skagit dba Cascade Valley Hospital Arlington, WA HC COLONOSCOPY BEDSIDE | $1,502.40 | $1,878.00 | 20% | — source file |
| Public Hospital Dist No 1 Skagit dba Cascade Valley Hospital Arlington, WA HC COLONOSCOPY | $1,632.80 | $2,041.00 | 20% | — source file |
| Virginia Mason Medical Center Seattle, WA FMT, DEL VIA COLONOSCOPY, W/WO MODERATE SEDATION, SELF PAY | $1,898.73 | $3,723.00 | 49% | — source file |
| Virginia Mason Medical Center Seattle, WA FMT, DELIVERED VIA COLONOSCOPY, W GENERAL ANES, SELF PAY | $1,907.40 | $3,740.00 | 49% | — source file |
| Swedish Health Services Seattle, WA HC ED COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD CDM | $1,932.48 | $4,026.00 | 52% | Apr 1, 2026 source file |
| Swedish Health Services Seattle, WA HC ED COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD CDM | $1,932.48 | $4,026.00 | 52% | Apr 1, 2026 source file |
| Swedish Health Services Issaquah, WA HC ED COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD CDM | $1,932.48 | $4,026.00 | 52% | Apr 1, 2026 source file |
| Virginia Mason Medical Center Seattle, WA COLONOSCOPY, W/WO COLL OF SPEC, W/WO DECOMPRESS, SEP PROC | $1,998.69 | $3,919.00 | 49% | — source file |
| Seattle Children's Hospital Seattle, WA Colonscopy Flex W/+W/O Brush/Wash | $5,952.50 | $5,952.50 | — | — source file |
Inpatient: lowest $1,423.00, median $1,919.94, highest $5,952.50 — a 4.2× difference within the same market.
As an outpatient, the same code is billed by 6 facilities here, median $1,919.94 — that is the price to compare if you are not being admitted.
What it is
A colonoscopy uses a long, flexible camera to look at the inside of the entire colon (large intestine). The diagnostic version, with no tissue taken, is used to look into symptoms like bleeding or changes in bowel habits and is also used for screening.
What the price covers
The facility price covers the procedure room and recovery. The gastroenterologist's fee, anesthesia and the bowel-prep medicine are usually billed or bought separately.