A88
Header — not billableOther viral infections of central nervous system, not elsewhere classified
The ICD-10 code for other viral infections of central nervous system, not elsewhere classified is A88.
A88 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- A80Acute poliomyelitisnon-billable header
- A81Atypical virus infections of central nervous systemnon-billable header
- A82Rabiesnon-billable header
- A83Mosquito-borne viral encephalitisnon-billable header
- A84Tick-borne viral encephalitisnon-billable header
- A85Other viral encephalitis, not elsewhere classifiednon-billable header
- A86Unspecified viral encephalitis
- A87Viral meningitisnon-billable header
- A89Unspecified viral infection of central nervous system
- A88Other viral infections of central nervous system, not elsewhere classifiednon-billable header