|  I67 |  | Other cerebrovascular diseases   | 
	
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		| Excludes1 | Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5-) Occlusion and stenosis of precerebral artery causing cerebral infarction (I63.2-)
 
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		| Excludes2 | sequelae of the listed conditions (I69.8) 
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		|  I67.0 |  | Dissection of cerebral arteries, nonruptured |  
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		| Excludes1 | ruptured cerebral arteries (I60.7) 
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		|  I67.1 |  | Cerebral aneurysm, nonruptured |  
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| Cerebral aneurysm NOS |  | Cerebral arteriovenous fistula, acquired |  | Internal carotid artery aneurysm, intracranial portion |  | Internal carotid artery aneurysm, NOS |  
		| Excludes1 | congenital cerebral aneurysm, nonruptured (Q28.-) ruptured cerebral aneurysm (I60.7)
 
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		|  I67.2 |  | Cerebral atherosclerosis |  
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| Atheroma of cerebral and precerebral arteries |  
		| age | Adult: [15-124] 
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		|  I67.3 |  | Progressive vascular leukoencephalopathy |  
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		|  I67.4 |  | Hypertensive encephalopathy |  
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		| CodeAlso | , if applicable, associated hypertensive conditions such as: essential (primary) hypertension (I10)
 hypertensive chronic kidney disease (I12.-)
 hypertensive heart and chronic kidney disease (I13.-)
 hypertensive heart disease (I11.-)
 
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		| Excludes2 | insufficiency, NOS, of precerebral arteries (G45.2) 
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		|  I67.5 |  | Moyamoya disease |  | 
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		|  I67.6 |  | Nonpyogenic thrombosis of intracranial venous system |  
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| Nonpyogenic thrombosis of cerebral vein |  | Nonpyogenic thrombosis of intracranial venous sinus |  
		| Excludes1 | nonpyogenic thrombosis of intracranial venous system causing infarction (I63.6) 
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		|  I67.7 |  | Cerebral arteritis, not elsewhere classified |  
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| Granulomatous angiitis of the nervous system |  
		| Excludes1 | allergic granulomatous angiitis (M30.1) 
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		|  I67.8 |  | Other specified cerebrovascular diseases |  |  |  | 
	
		|  I67.81 |  | Acute cerebrovascular insufficiency |  
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| Acute cerebrovascular insufficiency unspecified as to location or reversibility |  |  |  |  |  | 
	
		|  I67.82 |  | Cerebral ischemia |  
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| Chronic cerebral ischemia |  |  |  |  |  | 
	
		|  I67.83 |  | Posterior reversible encephalopathy syndrome |  
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		|  I67.84 |  | Cerebral vasospasm and vasoconstriction |  |  |  | 
	
		|  I67.841 |  | Reversible cerebrovascular vasoconstriction syndrome |  
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| Call-Fleming syndrome |  
		| CodeFirst | underlying condition, if applicable, such as eclampsia (O15.00-O15.9) 
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		|  I67.848 |  | Other cerebrovascular vasospasm and vasoconstriction |  |  |  |  |  | 
	
		|  I67.85 |  | Hereditary cerebrovascular diseases |  |  |  | 
	
		|  I67.850 |  | Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy |  
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| CADASIL |  
		| CodeAlso | any associated diagnoses, such as: epilepsy (G40.-)
 stroke (I63.-)
 vascular dementia (F01.-)
 
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		|  I67.858 |  | Other hereditary cerebrovascular disease |  |  |  |  |  | 
	
		|  I67.89 |  | Other cerebrovascular disease |  |  | 
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		|  I67.9 |  | Cerebrovascular disease, unspecified |  |