G45: Transient cerebral ischemic attacks and related syndromes

Codes under G45 (Transient cerebral ischemic attacks and related syndromes). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

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

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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