Provider's documentation states "performed lavage by cannulation in the bilateral maxillary sinuses." The description for CPT code 31000 reads "Lavage by cannulation, maxillary sinus (antrum puncture or other natural ostium.)" How would the coder report the procedure performed?

Question

Quizplus · Accepted Answer

The correct way to report a bilateral procedure, like the lavage by cannulation in the bilateral maxillary sinuses, is to use modifier -50 for bilateral procedures. CPT code 31000 describes the lavage by cannulation for the maxillary sinus, and adding modifier -50 indicates that the procedure was performed on both sides.

Provider's Documentation States "Performed Lavage by Cannulation in the Bilateral