Can anyone out there help me with coding something. This patient had a Left neck wound debridement with removal of infected thyroplasty implant. I have never coded for this in the past and I a little stumped. The full procedure is "Left neck wound debridement with removal of infected thyroplasty implant, with adjacent muscle flap transfer using the sternocleidomastoid muscle into the defect left by removal of thyroplasty implant". I have the flap code as 15733. One person in the office said maybe we can use a Foreign Body code 20520, one person said 20670 but that code is for a superficial implant with buried wire, pin or rod…. Can anyone else help with this one. The only other code I can think of would be an unlisted code 31599. I would appreciate anyone’s input on this one thanks.