ICD-10-CM · Chapter 6 · G00–G99
G45.4
Transient global amnesia
Diseases of the nervous system
Quick facts
- Code
- G45.4
- 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 G45.4 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of transient global amnesia. 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
- G45.8Other transient cerebral ischemic attacks and related syndromes
- G45.9Transient cerebral ischemic attack, unspecified
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