I67.2 Cerebral atherosclerosis

Billable ICD-10-CM code, FY2026.

Applicable to

• Atheroma of cerebral and precerebral arteries

Applies from I67 Other cerebrovascular diseases

Excludes1 (never code together)

• Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5-)
• Occlusion and stenosis of precerebral artery causing cerebral infarction (I63.2-)

Excludes2 (not included here)

• sequelae of the listed conditions (I69.8)

MS-DRG index

Defines the logic of DRG(s) 070-072 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 437.0 Cerebral atherosclerosis

Medicare Code Edits (MCE v43.1 (April 2026))

• Adult diagnoses (age 15 through 124): Age conflict edit. These diagnoses are clinically expected only in patients age 15 through 124.

Code annotations containing back-references to I67.2

Back-references to I67.2

• Type 2 Excludes: I70 Atherosclerosis ("cerebral atherosclerosis (I67.2)")
• Type 2 Excludes: I70 Atherosclerosis ("precerebral atherosclerosis (I67.2)")

Back-references to I67

• Type 1 Excludes: G31.84 Mild cognitive impairment of uncertain or unknown etiology ("cerebrovascular diseases (I60-I69)")
• Code First: G46 Vascular syndromes of brain in cerebrovascular diseases ("underlying cerebrovascular disease (I60-I69)")
• Type 2 Excludes: I10 Essential (primary) hypertension ("essential (primary) hypertension involving vessels of brain (I60-I69)")
• Type 2 Excludes: I15 Secondary hypertension ("secondary hypertension involving vessels of brain (I60-I69)")

Diagnosis Index entries for I67.2

• Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification) › brain
• Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification) › central nervous system
• Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification) › cerebral
• Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification) › cerebrovascular
• Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification) › vertebral (artery)
• Atheroma, atheromatous › basilar (artery)
• Atheroma, atheromatous › carotid (artery) (common) (internal)
• Atheroma, atheromatous › cerebral (arteries)
• Atheroma, atheromatous › vertebral (artery)
• Calcification › cerebral (cortex) › artery
• Degeneration, degenerative › brain (cortical) (progressive) › arteriosclerotic
• Degeneration, degenerative › cortical (cerebellar) (parenchymatous) › diffuse, due to arteriopathy
• Disease, diseased › brain › arteriosclerotic
• Disease, diseased › brain › organic › arteriosclerotic
• Disease, diseased › cerebrovascular › arteriosclerotic
• Encephalopathy (acute) › arteriosclerotic
• Ischemia, ischemic › cerebral (chronic) (generalized) › arteriosclerotic
• Klippel's disease
• Sclerosis, sclerotic › brain (generalized) (lobular) › artery, arterial
• Sclerosis, sclerotic › brain (generalized) (lobular) › senile (arteriosclerotic)
• Sclerosis, sclerotic › cerebrovascular

Nearby codes

• I67 Other cerebrovascular diseases
• I67.0 Dissection of cerebral arteries, nonruptured
• I67.1 Cerebral aneurysm, nonruptured
• I67.2 Cerebral atherosclerosis (this code)
• I67.3 Progressive vascular leukoencephalopathy
• I67.4 Hypertensive encephalopathy
• I67.5 Moyamoya disease
• I67.6 Nonpyogenic thrombosis of intracranial venous system
• I67.7 Cerebral arteritis, not elsewhere classified