Hospitals: CPT Codes for Section 3A of the Hospital Survey - Total Knee Replacement, Total Hip Replacement, and Bariatric Surgery for Weight Loss ONLY CPT Codes for Section 9C of the Hospital Survey - Nine Outpatient Specialties ASCs: CPT Codes for Section 3A of the ASC Survey - Nine Specialties CPT Codes for Section 3B of the ASC Survey - Total Knee Replacement, Total Hip Replacement, and Bariatric Surgery for Weight Loss ONLY