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"Thrombosed LUE dialysis (carotid bovine graft): The SVC and brachiocephalic veins are patent. Pullback venography demonstrates thrombosis of the venous outflow to extend to the graft venous anastomosis. A total of 4 mg alteplase was injected through the Kumpe catheter into the clot burden. After approximately 5 minutes, an orbital thrombectomy device was used in the proximal venous outflow extending to the level of the intragraft stenosis. This was followed by a 6 mm mm balloon angioplasty of the throughout the mid and distal graft, as well as the venous anastomosis, covering the areas of known clot burden. Then, stent graft placement across the venous anastomosis to the irregular distal graft segment was performed with a 6 x 100 mm heparin-coated stent graft (Viabahn). This was then postdilated with a 6 mm balloon."

Per query reply: PTA/stent to distal & graft vein anast graft to L brach vein. What vein should be used for intragraft thrombectomy for ICD-10-PCS coding?