Ask Dr. Z

I am new to vascular coding, and I am unsure how to code this. Our vascular surgeon was called in to assist with patient that underwent a nephrectomy and was found to have significant retroperitoneal bleeding from the renal vein. Per the op note: "Patient had bleeding from gonadal vein inferiorly and the adrenal vein superiorly. Clamps were in place controlling renal vein. Hemoclips were utilized to ligate the left gonadal vein, and left adrenal vein was oversewn by means of a running 4-0 prolene. Clamps were removed from renal vein, and interrupted 4-0 prolene sutures were utilized to completely control the bleeding renal vein. Wound was irrigated, and hemostasis obtained. At this point in time, closure and completion of surgery were to be completed by primary surgeon." How would I code this? Do I need to add a modifier since the opening and closing of the incision was not done by our surgeon?