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Would this be a simple debridement CPT or a specific AVF CPT?  "Patient placed supine. Left arm prepped and draped. Patient given antibiotic. We examined arm with US (images stored). We had tourniquet in room in case proximal. We removed scab and discovered 4 mm pseudoaneurysm at the site of retained suture of previous access for thrombectomy. We established proximal/distal control with digital compression. We examined 4 mm defect in skin. It was degenerative without signs of infection. I debrided edges to healthy tissue and repaired defect primarily with 4-0 Prolene running suture. We now had thrill and pulsation in AVF. We examined repair with US (images stored) and confirmed patency. Dressing applied."