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 | ✓ |
| G45.0 | Vertebro-basilar artery syndrome | ✓ |
| G45.1 | Carotid artery syndrome (hemispheric) | ✓ |
| G45.1 | Carotid artery syndrome (hemispheric) | ✓ |
| G45.2 | Multiple and bilateral precerebral artery syndromes | ✓ |
| G45.2 | Multiple and bilateral precerebral artery syndromes | ✓ |
| G45.3 | Amaurosis fugax | ✓ |
| G45.3 | Amaurosis fugax | ✓ |
| G45.4 | Transient global amnesia | ✓ |
| G45.4 | Transient global amnesia | ✓ |
| G45.8 | Other transient cerebral ischemic attacks and related syndromes | ✓ |
| G45.8 | Other transient cerebral ischemic attacks and related syndromes | ✓ |
| G45.9 | Transient cerebral ischemic attack, unspecified | ✓ |
| G45.9 | Transient cerebral ischemic attack, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code G45?
G45 is an ICD-10-CM category covering Transient cerebral ischemic attacks and related syndromes. It contains 14 more specific diagnosis codes, 14 of which are billable.
Is G45 a billable code?
No — G45 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example G45.0 — Vertebro-basilar artery syndrome). 14 of the 14 codes under G45 are billable.
What codes fall under G45?
G45 includes G45.0, G45.0, G45.1, G45.1, G45.2, plus 9 more. See the full list with descriptions and billable status above.
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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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