If we have a pt that has had a screening colonoscopy 2 years ago with a polypectomy and we have the pt have a repeat colon, should this be billed as diagnostic or screening? Pt has commercial insurance that doesn't follow Medicare guidelines. We precert these as diagnostic due to the history of polyps. We bill as 45378 with a dx of V12.72. Our hospital states that these should be billed as screening with the dx of V76.51 as primary and V12.72 as secondary. Our claim is being paid but the hospital claim is not due to the fact that there hasn't been 10 years since the last screening. Any insight to the correct way to bill these would be much appreciated.

