ICD-10-CM > I00-I99 > I70-I79 > I70 > I70.4 > I70.45 I70.45 Atherosclerosis of autologous vein bypass graft(s) of other extremity with ulceration Billable/Specific Copy Code Copy Description Includes any condition classifiable to I70.418, I70.428, and I70.438 Use Additional code to identify severity of ulcer (L98.49)