G45 Transient cerebral ischemic attacks and related syndromes

Category / Non-billable header 7 subcodes

Block: Episodic and paroxysmal disorders (G40-G47)

Excludes 1 (cannot be coded together)

  • neonatal cerebral ischemia (P91.0)
  • transient retinal artery occlusion (H34.0-)

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
G45..0 Vertebro-basilar artery syndrome Yes
G45..1 Carotid artery syndrome (hemispheric) Yes
G45..2 Multiple and bilateral precerebral artery syndromes Yes
G45..3 Amaurosis fugax Yes
G45..4 Transient global amnesia Yes
G45..8 Other transient cerebral ischemic attacks and related syndromes Yes
G45..9 Transient cerebral ischemic attack, unspecified Yes

Last reviewed: September 2026