If the patient scheduled the appointment, themselves, I would say it is billable. The physician did not say the visit was necessary to complete the post-op care. Sometimes, due to tight schedules, it may not be possible to get the post-op visit within the 90 days so then I would say the visit is not billable, even though it falls outside the 90 days. Some of it is a PR situation also.

Good luck-
Patty S.