Cerebral ischaemic stroke of unknown cause

Description

This is a sudden loss of brain function due to a lack of adequate blood flow. It is of an uncertain nature, and approximately 30% of examined events fall into this category.

Coding note

If an additional code is used for anatomy, the artery affected by the stroke should be selected.

Coding note from above levels

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.

Inclusions

cryptogenic stroke

Exclusions from above levels

8B21.0 – Silent cerebral infarct
8B25.0 – sequelae of cerebral infarction
NA07 – Intracranial injury

Show allHide

05 – Endocrine, nutritional or metabolic diseases
18 – Complications of pregnancy, childbirth and the puerperium
19 – Certain conditions originating in the perinatal period
22 – Injury, poisoning or certain other consequences of external causes

Child codes

8B11.50 – Cerebral ischaemic stroke due to unspecified occlusion or stenosis of extracranial large artery
8B11.51 – Cerebral ischaemic stroke due to unspecified occlusion or stenosis of intracranial large artery
8B11.5Z – Cerebral ischaemic stroke, unspecified

Sibling codes

8B11.0 – Cerebral ischaemic stroke due to extracranial large artery atherosclerosis
8B11.1 – Cerebral ischaemic stroke due to intracranial large artery atherosclerosis
8B11.2 – Cerebral ischaemic stroke due to embolic occlusion
8B11.3 – Cerebral ischaemic stroke due to small artery occlusion
8B11.4 – Cerebral ischaemic stroke due to other known cause

Foundation entity

Cerebral ischaemic stroke of unknown cause – http://id.who.int/icd/entity/1614716959

Allowed postcoordination axes

Part of: 8B11: Cerebral ischaemic stroke › 08: Diseases of the nervous system