To add, most wound repair codes carry a 10 day global period, so if the original repair of the laceration was billed with a code that has a 10 day global period, a return visit 7 days later for a hematoma at the repair site would be considered a complication, and would not be billable to most insurances. That said, I agree with Michele...I would look at the S80.12X* codes first, based on the limited info you have provided.