G45.8: Other transient cerebral ischaemic attacks and related syndromes

G45.8 refers to the condition called "Other transient cerebral ischemic attacks and related syndromes". This condition involves temporary disruptions in blood flow to parts of the brain which result in brief episodes of neurological dysfunction. These episodes are often referred to as "mini-strokes" because they mimic the symptoms of a stroke but typically resolve within 24 hours. Common symptoms include sudden weakness or numbness on one side of the body, difficulty speaking or understanding speech, dizziness, loss of balance or unexplained falls, and sudden severe headaches with no known cause. The condition is typically caused by a temporary decrease in blood supply to parts of the brain, often because of small blood clots or hardened arteries. While these episodes are usually brief, they may signal a high risk of a future stroke.