CEREBROVASCULAR DISEASE (430-438)

Subarachnoid hemorrhage
Intracerebral hemorrhage
Other and unspecified intracranial hemorrhage
Occlusion and stenosis of precerebral arteries
Occlusion of cerebral arteries
Transient cerebral ischemia
Acute, but ill-defined, cerebrovascular disease
Other and ill-defined cerebrovascular disease
Late effects of cerebrovascular disease

Includes: with mention of hypertension (conditions classifiable to 401-405)
Use additional code to identify presence of hypertension
Excludes: any condition classifiable to 430-434, 436, 437 occurring during pregnancy, childbirth, or the puerperium, or specified as puerperal (674.0)
iatrogenic cerebrovascular infarction or hemorrhage (997.02)

430 Subarachnoid hemorrhage

Meningeal hemorrhage
Ruptured:
berry aneurysm
(congenital) cerebral aneurysm NOS
Excludes: syphilitic ruptured cerebral aneurysm (094.87)

431 Intracerebral hemorrhage

Hemorrhage (of):
basilar
bulbar
cerebellar
cerebral
cerebromeningeal
cortical
internal capsule
intrapontine
pontine
subcortical
ventricular
Rupture of blood vessel in brain

432 Other and unspecified intracranial hemorrhage

432.0 Nontraumatic extradural hemorrhage

Nontraumatic epidural hemorrhage

432.1 Subdural hemorrhage

Subdural hematoma, nontraumatic

432.9 Unspecified intracranial hemorrhage

Intracranial hemorrhage NOS

433 Occlusion and stenosis of precerebral arteries

The following fifth-digit subclassification is for use with category 433:
0 without mention of cerebral infarction
1 with cerebral infarction
Includes: embolism of basilar, carotid, and vertebral arteries
narrowing of basilar, carotid, and vertebral arteries
obstruction of basilar, carotid, and vertebral arteries
thrombosis of basilar, carotid, and vertebral arteries
Excludes: insufficiency NOS of precerebral arteries (435.0-435.9)

433.0 Basilar artery

433.1 Carotid artery

433.2 Vertebral artery

433.3 Multiple and bilateral

433.8 Other specified precerebral artery

433.9 Unspecified precerebral artery

Precerebral artery NOS

434 Occlusion of cerebral arteries

The following fifth-digit subclassification is for use with category 434:
0 without mention of cerebral infarction
1 with cerebral infarction

434.0 Cerebral thrombosis

Thrombosis of cerebral arteries

434.1 Cerebral embolism

434.9 Cerebral artery occlusion, unspecified

435 Transient cerebral ischemia

Includes: cerebrovascular insufficiency (acute) with transient focal neurological signs and symptoms
insufficiency of basilar, carotid, and vertebral arteries
spasm of cerebral arteries
Excludes: acute cerebrovascular insufficiency NOS (437.1)
that due to any condition classifiable to 433 (433.0-433.9)

435.0 Basilar artery syndrome

435.1 Vertebral artery syndrome

435.2 Subclavian steal syndrome

435.3 Vertebrobasilar artery syndrome

435.8 Other specified transient cerebral ischemias

435.9 Unspecified transient cerebral ischemia

Impending cerebrovascular accident
Intermittent cerebral ischemia
Transient ischemic attack [TIA]

436 Acute, but ill-defined, cerebrovascular disease

Apoplexy, apoplectic:
NOS
attack
cerebral
seizure
Cerebral seizure
Cerebrovascular accident [CVA] NOS
Stroke
Excludes: any condition classifiable to categories 430-435
postoperative cerebrovascular accident (997.02)

437 Other and ill-defined cerebrovascular disease

437.0 Cerebral atherosclerosis

Atheroma of cerebral arteries
Cerebral arteriosclerosis

437.1 Other generalized ischemic cerebrovascular disease

Acute cerebrovascular insufficiency NOS
Cerebral ischemia (chronic)

437.2 Hypertensive encephalopathy

437.3 Cerebral aneurysm, nonruptured

Internal carotid artery, intracranial portion
Internal carotid artery NOS
Excludes: congenital cerebral aneurysm, nonruptured (747.81)
internal carotid artery, extracranial portion (442.81)

437.4 Cerebral arteritis

437.5 Moyamoya disease

437.6 Nonpyogenic thrombosis of intracranial venous sinus

Excludes: pyogenic (325)

437.7 Transient global amnesia

437.8 Other

437.9 Unspecified

Cerebrovascular disease or lesion NOS

438 Late effects of cerebrovascular disease

Note: This category is to be used to indicate conditions in 430-437 as the cause of late effects. The "late effects" include conditions specified as such, or as sequelae, which may occur at any time after the onset of the causal condition.

438.0 Cognitive deficits

438.1 Speech and language deficits

438.10 Speech and language deficit, unspecified
438.11 Aphasia
438.12 Dysphasia
438.19 Other speech and language deficits

438.2 Hemiplegia/hemiparesis

438.20 Hemiplegia affecting unspecified side
438.21 Hemiplegia affecting dominant side
438.22 Hemiplegia affecting nondominant side

438.3 Monoplegia of upper limb

438.30 Monoplegia of upper limb affecting unspecified side
438.31 Monoplegia of upper limb affecting dominant side
438.32 Monoplegia of upper limb affecting nondominant side

438.4 Monoplegia of lower limb

438.40 Monoplegia of lower limb affecting unspecified side
438.41 Monoplegia of lower limb affecting dominant side
438.42 Monoplegia of lower limb affecting nondominant side

438.5 Other paralytic syndrome

Use additional code to identify type of paralytic syndrome, such as:
locked-in state (344.81)
quadriplegia (344.00-344.09)
Excludes: late effects of cerebrovascular accident with:
hemiplegia/hemiparesis (438.20-438.22)
monoplegia of lower limb (438.40-438.42)
monoplegia of upper limb (438.40-438.42)
438.50 Other paralytic syndrome affecting unspecified side
438.51 Other paralytic syndrome affecting dominant side
438.52 Other paralytic syndrome affecting nondominant side
438.53 Other paralytic syndrome, bilateral

438.6 Alterations of sensations

Use additional code to identify the altered sensation

438.7 Disturbances of vision

Use additional code to identify the visual disturbance

438.8 Other late effects of cerebrovascular disease

438.81 Apraxia
438.82 Dysphagia
438.83 Facial weakness
Facial droop
438.84 Ataxia
438.85 Vertigo
438.89 Other late effects of cerebroascular disease
Use additional code to identify the late effect