Question: Florida Subscriber Answer: removal code, you won't need a modifier. If the ophthalmologist feels that his work was more extensive than 66250 describes, you could report 66999 (Unlisted procedure, anterior segment of eye). Reporting the unlisted-procedure code requires you to submit the operative report, and the claim will go through a review with the carrier. If the problem occurred during the post-op period, be sure to report the revision code with modifier 78 (Unplanned return to the operating/procedure room by the same physician following initial procedure for a related procedure during the postoperative period).