ICD-10-CM · Chapter 6 · G00–G99
G45.9
Transient cerebral ischemic attack, unspecified
Diseases of the nervous system
Quick facts
- Code
- G45.9
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 6 — Diseases of the nervous system
- Category
- G45 — Transient cerebral ischemic attacks and related syndromes
- Specificity
- 4 characters
How coders use this code
ICD-10-CM G45.9 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of transient cerebral ischemic attack, unspecified. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in G45
- G45Transient cerebral ischemic attacks and related syndromes
- G45.0Vertebro-basilar artery syndrome
- G45.1Carotid artery syndrome (hemispheric)
- G45.2Multiple and bilateral precerebral artery syndromes
- G45.3Amaurosis fugax
- G45.4Transient global amnesia
- G45.8Other transient cerebral ischemic attacks and related syndromes
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