Chapter IX

Diseases of the circulatory system
(I00-I99)

Cerebrovascular diseases
(I60-I69)


Includes:	with mention of hypertension (conditions in I10 and I15.-)
Use additional code, if desired, to identify presence of hypertension.
Excludes:	transient cerebral ischaemic attacks and related syndromes ( G45.- ) traumatic intracranial haemorrhage ( S06.- ) vascular dementia ( F01.- )


I60	Subarachnoid haemorrhage
	Includes:	ruptured cerebral aneurysm
	Excludes:	sequelae of subarachnoid haemorrhage ( I69.0 )
I60.0	Subarachnoid haemorrhage from carotid siphon and bifurcation
I60.1	Subarachnoid haemorrhage from middle cerebral artery
I60.2	Subarachnoid haemorrhage from anterior communicating artery
I60.3	Subarachnoid haemorrhage from posterior communicating artery
I60.4	Subarachnoid haemorrhage from basilar artery
I60.5	Subarachnoid haemorrhage from vertebral artery
I60.6	Subarachnoid haemorrhage from other intracranial arteries
	Multiple involvement of intracranial arteries
I60.7	Subarachnoid haemorrhage from intracranial artery, unspecified
	Ruptured (congenital) berry aneurysm NOS Subarachnoid haemorrhage from:
	· cerebral · communicating		} }	artery NOS
I60.8	Other subarachnoid haemorrhage
	Meningeal haemorrhage Rupture of cerebral arteriovenous malformation
I60.9	Subarachnoid haemorrhage, unspecified
	Ruptured (congenital) cerebral aneurysm NOS


I61	Intracerebral haemorrhage
	Excludes:	sequelae of intracerebral haemorrhage ( I69.1 )
I61.0	Intracerebral haemorrhage in hemisphere, subcortical
	Deep intracerebral haemorrhage
I61.1	Intracerebral haemorrhage in hemisphere, cortical
	Cerebral lobe haemorrhage Superficial intracerebral haemorrhage
I61.2	Intracerebral haemorrhage in hemisphere, unspecified
I61.3	Intracerebral haemorrhage in brain stem
I61.4	Intracerebral haemorrhage in cerebellum
I61.5	Intracerebral haemorrhage, intraventricular
I61.6	Intracerebral haemorrhage, multiple localized
I61.8	Other intracerebral haemorrhage
I61.9	Intracerebral haemorrhage, unspecified


I62	Other nontraumatic intracranial haemorrhage
	Excludes:	sequelae of intracranial haemorrhage ( I69.2 )
I62.0	Subdural haemorrhage (acute)(nontraumatic)
I62.1	Nontraumatic extradural haemorrhage
	Nontraumatic epidural haemorrhage
I62.9	Intracranial haemorrhage (nontraumatic), unspecified


I63	Cerebral infarction
	Includes:	occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction
	Excludes:	sequelae of cerebral infarction ( I69.3 )
I63.0	Cerebral infarction due to thrombosis of precerebral arteries
I63.1	Cerebral infarction due to embolism of precerebral arteries
I63.2	Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteries
I63.3	Cerebral infarction due to thrombosis of cerebral arteries
I63.4	Cerebral infarction due to embolism of cerebral arteries
I63.5	Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteries
I63.6	Cerebral infarction due to cerebral venous thrombosis, nonpyogenic
I63.8	Other cerebral infarction
I63.9	Cerebral infarction, unspecified


I64	Stroke, not specified as haemorrhage or infarction
	Cerebrovascular accident NOS
	Excludes:	sequelae of stroke ( I69.4 )


I65	Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
	Includes:	embolism narrowing obstruction (complete)(partial) thrombosis	} } } }	of basilar, carotid or vertebral arteries, not resulting in cerebral infarction
	Excludes:	when causing cerebral infarction ( I63.- )
I65.0	Occlusion and stenosis of vertebral artery
I65.1	Occlusion and stenosis of basilar artery
I65.2	Occlusion and stenosis of carotid artery
I65.3	Occlusion and stenosis of multiple and bilateral precerebral arteries
I65.8	Occlusion and stenosis of other precerebral artery
I65.9	Occlusion and stenosis of unspecified precerebral artery
	Precerebral artery NOS


I66	Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
	Includes:	embolism narrowing obstruction (complete)(partial) thrombosis	} } } }	of middle, anterior and posterior cerebral arteries, and cerebellar arteries, not resulting in cerebral infarction
	Excludes:	when causing cerebral infarction ( I63.- )
I66.0	Occlusion and stenosis of middle cerebral artery
I66.1	Occlusion and stenosis of anterior cerebral artery
I66.2	Occlusion and stenosis of posterior cerebral artery
I66.3	Occlusion and stenosis of cerebellar arteries
I66.4	Occlusion and stenosis of multiple and bilateral cerebral arteries
I66.8	Occlusion and stenosis of other cerebral artery
	Occlusion and stenosis of perforating arteries
I66.9	Occlusion and stenosis of unspecified cerebral artery


I67	Other cerebrovascular diseases
	Excludes:	sequelae of the listed conditions ( I69.8 )
I67.0	Dissection of cerebral arteries, nonruptured
	Excludes:	ruptured cerebral arteries ( I60.7 )
I67.1	Cerebral aneurysm, nonruptured
	Cerebral: · aneurysm NOS · arteriovenous fistula, acquired
	Excludes:	congenital cerebral aneurysm, nonruptured ( Q28.- ) ruptured cerebral aneurysm ( I60.9 )
I67.2	Cerebral atherosclerosis
	Atheroma of cerebral arteries
I67.3	Progressive vascular leukoencephalopathy
	Binswanger's disease
	Excludes:	subcortical vascular dementia ( F01.2 )
I67.4	Hypertensive encephalopathy
I67.5	Moyamoya disease
I67.6	Nonpyogenic thrombosis of intracranial venous system
	Nonpyogenic thrombosis of: · cerebral vein · intracranial venous sinus
	Excludes:	when causing infarction ( I63.6 )
I67.7	Cerebral arteritis, not elsewhere classified
I67.8	Other specified cerebrovascular diseases
	Acute cerebrovascular insufficiency NOS Cerebral ischaemia (chronic)
I67.9	Cerebrovascular disease, unspecified


I68*		Cerebrovascular disorders in diseases classified elsewhere
I68.0*		Cerebral amyloid angiopathy ( E85.-+ )
I68.1*		Cerebral arteritis in infectious and parasitic diseases classified elsewhere
		Cerebral arteritis: · listerial ( A32.8+ ) · syphilitic ( A52.0+ ) · tuberculous ( A18.8+ )
I68.2*		Cerebral arteritis in other diseases classified elsewhere
		Cerebral arteritis in systemic lupus erythematosus ( M32.1+ )
I68.8*		Other cerebrovascular disorders in diseases classified elsewhere


I69	Sequelae of cerebrovascular disease
	Note:	This category is to be used to indicate conditions in I60-I67 as the cause of sequelae, themselves classified elsewhere. The "sequelae" include conditions specified as such or as late effects, or those present one year or more after onset of the causal condition.
I69.0	Sequelae of subarachnoid haemorrhage
I69.1	Sequelae of intracerebral haemorrhage
I69.2	Sequelae of other nontraumatic intracranial haemorrhage
I69.3	Sequelae of cerebral infarction
I69.4	Sequelae of stroke, not specified as haemorrhage or infarction
I69.8	Sequelae of other and unspecified cerebrovascular diseases