Answer_Book / Endoscopies / Use Modifer PT when screening colonoscopy becomes diagnostic

Article Overview

This article covers Medicare/CMS reporting guidance for colorectal cancer screening services that convert to diagnostic or therapeutic procedures during the same encounter. It is relevant to coders, billing staff, and revenue cycle teams working with endoscopy claims, preventive service billing, and primary/secondary diagnosis sequencing. The discussion includes the use of CMS guidance, claim handling considerations, and how screening-related encounters are reflected on the claim without exposing the article’s full coding instructions.