How much does outpatient surgery cost in WI? Compare Wisconsin ambulatory surgery facility charges (prices) for 2021 for each hospital and freestanding ambulatory surgery center. Find average 2021 charges for 20 common ambulatory surgery procedures, such as Colonoscopy (5 codes), Endoscopy, Angiography, Spinal Injection, Cataract & Lens ($7,916 average), Dental Surgery procedure (average $8,012), Total knee replacement (arthroplasty) average price $41,321 (up 4.5%); outpatient Knee surgery/arthroscopy $13,130 (up 5.9%), Carpal Tunnel $7,738 (up 6.8%) and more. For colonoscopy, a less-frequent Colorectal Cancer Screening, or colonoscopy for a patient that is NOT high risk (code G0121) had an average charge of $3,876 (up 4%) in 2021. However, the two most common colonoscopy procedures had an average charge of about $6,300. Number of procedures for each hospital and surgical center are shown for top 20 only. Go to the Overview report for a longer list of 40 procedures including gall bladder removal [laparoscopic cholecystectomy at $21,370 (up 8.8%) average statewide cost], ear tubes, and hernia repair. Prices do NOT include surgeon and physician fees, which may cost thousands of dollars and could double prices shown. Consumers should add medical inflation to estimate 2022 facility prices. Health Care Data Report 2021 by WHA Information Center, published 2022.