Gastroenterology Coding:
Distinguish Between Modifier XS and 59 Use for Separate Procedures
Published on Tue Jul 15, 2025
Question: I have a report that documents one of our gastroenterologists performed a screening colonoscopy that turned therapeutic. The patient’s insurance requires modifier PT for the procedure, but I’m unsure if I should then use XS or 59 for the removal techniques of two polyps. My manager has instructed us to use PT/XS for Medicare and PT/59 for commercial payers. [...]