Gastric bypass, open cost without insurance
The median hospital cash price for open Roux-en-Y gastric bypass through an abdominal incision is $4,773.96 across 70 US hospitals; most list between $1,446.24 and $30,279.00. The lowest outpatient cash price in any of 45 markets is $936.62. Prices come from each hospital's own price file; pick your area below to compare hospitals side by side.
Collected Sep 29, 2026 Each price links to its source file All Weight loss surgery costs
What is CPT 43846?
An open gastric bypass makes a small stomach pouch and connects it to the small intestine through one larger cut in the abdomen instead of small laparoscopic cuts. Surgeons use it mainly when laparoscopy is not possible, such as after earlier abdominal operations.
What the price covers
The facility price usually covers the operating room and recovery and may not include the hospital stay. The surgeon, anesthesia, pre-surgery tests and follow-up visits are usually billed separately. An open operation usually means a longer hospital stay.
Why prices differ
Prices differ between hospitals and surgery programs and with length of stay; some programs sell bundled self-pay packages priced differently from the hospital's listed code price.
What to ask
Ask whether the self-pay price for CPT 43846 includes the hospital stay, the surgeon and anesthesia, and why laparoscopic surgery (43644) is not an option.
Prices by state
Median outpatient cash price, one line per hospital. Pick a state to see every hospital, cheapest first.
- California$3,022.18
- Colorado$8,225.00
- Idaho$8,797.54
- Illinois$5,115.75
- Indiana$39,459.45
- Iowa$3,301.48
- Kentucky$2,613.00
- Louisiana$5,581.80
- Maine$2,307.60
- Maryland$4,330.00
- Michigan$2,001.46
- Minnesota$1,578.96
- Missouri$1,094.40
- Montana$3,914.59
- Nebraska$3,088.35
- New Jersey$1,361.68
- New Mexico$2,040.60
- New York$19,315.29
- Ohio$8,283.85
- Pennsylvania$5,696.85
- South Dakota$16,906.73
- Tennessee$5,920.80
- Texas$3,364.00
- West Virginia$1,800.77
- Wisconsin$13,689.82
Prices by market
Outpatient cash prices. “×” is how many times the highest price in that market exceeds the lowest.
| Market | Hospitals | Lowest | Median | Highest | × |
|---|---|---|---|---|---|
| Albany-Schenectady-Troy, NY | 1 | $945.00 | $945.00 | $945.00 | 1.0× |
| Andrews, TX | 1 | $3,317.00 | $3,317.00 | $3,317.00 | 1.0× |
| Appleton, WI | 2 | $13,689.82 | $13,689.82 | $13,689.82 | 1.0× |
| Berlin, WI single city | 1 | $13,689.82 | $13,689.82 | $13,689.82 | 1.0× |
| Boise City, ID | 1 | $8,797.54 | $8,797.54 | $8,797.54 | 1.0× |
| Brainerd, MN | 1 | $1,578.96 | $1,578.96 | $1,578.96 | 1.0× |
| Buffalo-Cheektowaga, NY | 1 | $4,841.91 | $4,841.91 | $4,841.91 | 1.0× |
| Clinton, MO single city | 1 | $1,094.40 | $1,094.40 | $1,094.40 | 1.0× |
| Carlsbad-Artesia, NM | 1 | $2,040.60 | $2,040.60 | $2,040.60 | 1.0× |
| Columbus, IN | 1 | $32,832.35 | $32,832.35 | $32,832.35 | 1.0× |
| Delhi, NY single city | 1 | $945.00 | $945.00 | $945.00 | 1.0× |
| Dallas-Fort Worth-Arlington, TX | 2 | $2,724.60 | $3,067.80 | $3,411.00 | 1.3× |
| Dayton-Kettering-Beavercreek, OH | 1 | $14,000.00 | $14,000.00 | $14,000.00 | 1.0× |
| Detroit-Warren-Dearborn, MI | 4 | $2,341.82 | $2,341.82 | $2,341.82 | 1.0× |
| Elkhart-Goshen, IN | 1 | $46,086.55 | $46,086.55 | $46,086.55 | 1.0× |
| Fond du Lac, WI | 1 | $13,689.82 | $13,689.82 | $13,689.82 | 1.0× |
| Freeport, IL | 1 | $5,529.60 | $5,529.60 | $5,529.60 | 1.0× |
| Glasgow, KY | 1 | $2,613.00 | $2,613.00 | $2,613.00 | 1.0× |
| Grand Rapids-Wyoming-Kentwood, MI | 1 | $1,659.50 | $1,659.50 | $1,659.50 | 1.0× |
| Harrisburg-Carlisle, PA | 3 | $4,502.07 | $5,930.52 | $6,243.35 | 1.4× |
| Lancaster, PA | 1 | $5,463.17 | $5,463.17 | $5,463.17 | 1.0× |
| Lansing-East Lansing, MI | 2 | $1,659.50 | $1,659.50 | $1,659.50 | 1.0× |
| Laredo, TX | 1 | $22,921.75 | $22,921.75 | $22,921.75 | 1.0× |
| Lima, OH | 1 | $2,567.70 | $2,567.70 | $2,567.70 | 1.0× |
| Los Angeles-Long Beach-Anaheim, CA | 2 | $936.62 | $1,243.63 | $1,550.64 | 1.7× |
| Morgan City, LA | 1 | $5,581.80 | $5,581.80 | $5,581.80 | 1.0× |
| Morgantown, WV | 1 | $1,800.77 | $1,800.77 | $1,800.77 | 1.0× |
| New London, WI single city | 1 | $13,689.82 | $13,689.82 | $13,689.82 | 1.0× |
| Nashville-Davidson--Murfreesboro--Franklin, TN | 1 | $5,920.80 | $5,920.80 | $5,920.80 | 1.0× |
| New York-Newark-Jersey City, NY-NJ | 10 | $1,361.68 | $30,279.00 | $55,993.00 | 41.1× |
| Ocean Pines, MD | 1 | $4,330.00 | $4,330.00 | $4,330.00 | 1.0× |
| Oshkosh-Neenah, WI | 2 | $13,689.82 | $13,689.82 | $13,689.82 | 1.0× |
| Peoria, IL | 1 | $4,701.90 | $4,701.90 | $4,701.90 | 1.0× |
| Rapid City, SD | 2 | $15,230.65 | $16,906.73 | $18,582.81 | 1.2× |
| Reading, PA | 1 | $4,901.58 | $4,901.58 | $4,901.58 | 1.0× |
| Rifle, CO | 1 | $8,225.00 | $8,225.00 | $8,225.00 | 1.0× |
| Sidney, MT single city | 1 | $3,914.59 | $3,914.59 | $3,914.59 | 1.0× |
| Saginaw, MI | 1 | $1,661.10 | $1,661.10 | $1,661.10 | 1.0× |
| Shawano, WI | 1 | $13,689.82 | $13,689.82 | $13,689.82 | 1.0× |
| Utica-Rome, NY | 1 | $945.00 | $945.00 | $945.00 | 1.0× |
| Waupaca, WI single city | 1 | $13,689.82 | $13,689.82 | $13,689.82 | 1.0× |
| Wild Rose, WI single city | 1 | $13,689.82 | $13,689.82 | $13,689.82 | 1.0× |
| Waterloo-Cedar Falls, IA | 1 | $3,301.48 | $3,301.48 | $3,301.48 | 1.0× |
| Watertown-Fort Atkinson, WI | 1 | $5,115.52 | $5,115.52 | $5,115.52 | 1.0× |
| York-Hanover, PA | 1 | $67,352.07 | $67,352.07 | $67,352.07 | 1.0× |
Common questions
What is CPT code 43846?
CPT 43846 is the billing code for open Roux-en-Y gastric bypass through an abdominal incision. An open gastric bypass makes a small stomach pouch and connects it to the small intestine through one larger cut in the abdomen instead of small laparoscopic cuts. Surgeons use it mainly when laparoscopy is not possible, such as after earlier abdominal operations.
How is open bypass different from laparoscopic bypass?
The stomach and intestine are rearranged the same way, but through one large incision, so recovery and the hospital stay are longer.
How long is the hospital stay?
Usually several days, longer than after laparoscopic bypass. The surgical team will decide.
Other weight loss surgery prices
Median hospital cash price, one per hospital.