Figure 1. Nationwide Mean Commercial Colonoscopy Facility Fees in Ambulatory Surgery Centers (ASCs) vs Hospitals.

For colonoscopy, the Current Procedural Terminology (CPT) code was 45378; for colonoscopy with biopsy, 45380; and for colonoscopy with removal of polyps, 45385. As a validity check, using the 2021 Merative Marketscan research database, we found that the national mean facility fees (unadjusted for inflation) for ASCs and hospitals were $910 vs $1602 for CPT code 45378, $897 vs $1709 for CPT code 45380, and $900 vs $1674 for CPT code 45385. Whiskers indicate 95% CIs.