DISEASES OF ARTERIES, ARTERIOLES, AND CAPILLARIES (440-449)
440 Atherosclerosis
Includes:
arteriolosclerosis
arteriosclerosis (obliterans) (senile)
arteriosclerotic vascular disease
atheroma
degeneration:
arterial
arteriovascular
vascular
endarteritis deformans or obliterans
senile:
arteritis
endarteritis
Excludes:
atheroembolism (445.01-445.89)
atherosclerosis of bypass graft of the extremities (440.30-440.32)
440.0: Of aorta
440.1: Of renal artery
Excludes:
atherosclerosis of renal arterioles (403.00-403.91)
440.2: Of native arteries of the extremities
Use additional code, if applicable, to identify chronic total occlusion of artery of the extremities (440.4)
Excludes:
atherosclerosis of bypass graft of the extremities (440.30-440.32)
440.3: Of bypass graft of the extremities
Excludes:
atherosclerosis of native artery of the extremity (440.21-440.24)
embolism [occlusion NOS] [thrombus] of graft (996.74)
440.4: Chronic total occlusion of artery of the extremities
Complete occlusion of artery of the extremities
Total occlusion of artery of the extremities
Code first atherosclerosis of arteries of the extremities (440.20-440.29, 440.30-440.32)
Excludes:
acute occlusion of artery of extremity (444.21-444.22)
440.8: Of other specified arteries
Excludes:
basilar (433.0)
carotid (433.1)
cerebral (437.0)
coronary (414.00-414.07)
mesenteric (557.1)
precerebral (433.0-433.9)
pulmonary (416.0)
vertebral (433.2)
440.9: Generalized and unspecified atherosclerosis
Arteriosclerotic vascular disease NOS
Excludes:
arteriosclerotic cardiovascular disease [ASCVD] (429.2)

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