Cerebral ischaemic stroke due to unspecified occlusion or stenosis of extracranial large artery

**Definition:** This is a sudden loss of brain function due to a lack of adequate blood flow of the large extracranial arteries.

**Exclusions:** - Cerebral ischaemic stroke due to embolic occlusion - Cerebral ischaemic stroke due to other known cause - Cerebral ischaemic stroke due to extracranial large artery atherosclerosis