Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration

**Includes:** - any condition classifiable to I70.412 and I70.422 - chronic limb-threatening ischemia of autologous vein bypass graft(s) of the left leg with ulceration - critical limb ischemia of autologous vein bypass graft(s) of the left leg with ulceration

**Use additional code:** - code to identify severity of ulcer (L97.-)