ICD-10-CM · Chapter 1 · A00–B99
A89
Unspecified viral infection of central nervous system
Certain infectious and parasitic diseases
Quick facts
- Code
- A89
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 1 — Certain infectious and parasitic diseases
- Category
- A89
- Specificity
- 3 characters
How coders use this code
ICD-10-CM A89 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of unspecified viral infection of central nervous system. 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.
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