Please help! Dr. performed surgery on 10/25/10 latissimus Dorsi Flap from the back to the arm. Patient returned on 11/18/2010, the dictation clearly identifies the patient is being evaluated for postoperative reasons, but a new problem is found. Patient now has seroma fluid aspirated from his back. The Dr. appended modifier 24 to separate the visit from the 10/25 surgery, but it is still included in the seroma aspiration, since this is the decision for this procedure can I append modifier 57 or would it be a write off?