8B11
Cerebral ischaemic stroke
Acidente cerebral isquêmico
CategoryDefinition
“Precerebral” have been changed to “extracranial” as the latter term is the one generally used in the literature. Arteries to the brain are divided into intracranial and extracranial. The carotid siphon is included in the “intracranial” part of the carotid artery as the major part of the carotid siphon is located distal to the dural passage of the artery.
Coding Note
When the cause of ischaemic stroke is known, code to the cause. When the cause of ischaemic stroke is not known, code to 8B11.5-. When the cause of stroke is not known, code to 8B20 Stroke not known if ischaemic or haemorrhagic.
Diagnostic Criteria
Signs and symptoms:
Acute focal neurological dysfunction caused by focal infarction at single or multiple sites of the brain or retina. Evidence of acute infarction may come either from a) symptom duration lasting more than 24 hours, or b) neuroimaging or other technique in the clinically relevant area of the brain.
Exclusions
- sequelae of cerebral infarction
- Silent cerebral infarct
Index Terms
Cerebral ischaemic stroke
Subcategories (6)
8B11.0Cerebral ischaemic stroke due to extracranial large artery atherosclerosis8B11.1Cerebral ischaemic stroke due to intracranial large artery atherosclerosis8B11.2Cerebral ischaemic stroke due to embolic occlusion8B11.3Cerebral ischaemic stroke due to small artery occlusion8B11.4Cerebral ischaemic stroke due to other known cause8B11.5Cerebral ischaemic stroke of unknown cause