Accurate coding is the backbone of gastroenterology revenue. Using the right Gastroenterology CPT Codes—like CPT 45378 (colonoscopy) or CPT 43239 (EGD with biopsy)—prevents denials and boosts reimbursement. Training staff, applying modifiers correctly, and using coding software can cut errors and improve results. By focusing on top codes, practices strengthen compliance, speed up claims, and protect financial stability.