If the patient had a partial removal of colon with colostomy and is still within the 90- day global period, can/should the same physician bill for the pre-operative visit prior to the colostomy reversal? It feels like this should just be a 99024 post op visit but another coder is telling me we MUST bill the pre-op with modifier 24?

Does anyone have a link to an article on this topic that they could share? I can’t seem to find any example like this….

any help would be greatly appreciated

Thanks