We are having issues with a claim and determining if it should be considered as a post-op visit during a 90-day global period, or billable as an established patient visit code. The patient in question had a 90-day orthopedic procedure done on his hand, and was being seen during the following month for follow-up. He was also examined and advised on an unrelated injury to his wrist during the same visit. Basically, the question is should we use 99024 or 99213-24? Any input would be appreciated.