ICD-10-CM Code for Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of thigh I70.641

I70.64

Includes: any condition classifiable to I70.612 and I70.622
chronic limb-threatening ischemia of nonbiological bypass graft(s) of the left leg with ulceration
critical limb ischemia of nonbiological bypass graft(s) of the left leg with ulceration

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

I70.6

Use additional code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92)

I70

Includes: arteriolosclerosis
arterial degeneration
arteriosclerosis
arteriosclerotic vascular disease
arteriovascular degeneration
atheroma
endarteritis deformans or obliterans
senile arteritis
senile endarteritis
vascular degeneration

Excludes2: arteriosclerotic cardiovascular disease (I25.1-)
arteriosclerotic heart disease (I25.1-)
atheroembolism (I75.-)
cerebral atherosclerosis (I67.2)
coronary atherosclerosis (I25.1-)
mesenteric atherosclerosis (K55.1)
precerebral atherosclerosis (I67.2)
primary pulmonary atherosclerosis (I27.0)

Use additional code to identify:
exposure to environmental tobacco smoke (Z77.22)
history of tobacco dependence (Z87.891)
occupational exposure to environmental tobacco smoke (Z57.31)
tobacco dependence (F17.-)
tobacco use (Z72.0)