A85: Other viral encephalitis, not elsewhere classified
Codes under A85 (Other viral encephalitis, not elsewhere classified). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| A85.0 | Enteroviral encephalitis | ✓ |
| A85.0 | Enteroviral encephalitis | ✓ |
| A85.1 | Adenoviral encephalitis | ✓ |
| A85.1 | Adenoviral encephalitis | ✓ |
| A85.2 | Arthropod-borne viral encephalitis, unspecified | ✓ |
| A85.2 | Arthropod-borne viral encephalitis, unspecified | ✓ |
| A85.8 | Other specified viral encephalitis | ✓ |
| A85.8 | Other specified viral encephalitis | ✓ |
Frequently asked questions
What is ICD-10-CM code A85?
A85 is an ICD-10-CM category covering Other viral encephalitis, not elsewhere classified. It contains 8 more specific diagnosis codes, 8 of which are billable.
Is A85 a billable code?
No — A85 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 A85.0 — Enteroviral encephalitis). 8 of the 8 codes under A85 are billable.
What codes fall under A85?
A85 includes A85.0, A85.0, A85.1, A85.1, A85.2, plus 3 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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