A80-A89 ICD-10-CM Code: Viral and prion infections of the central nervous system
A80-A89 is the authoritative medical code for Viral and prion infections of the central nervous system. This classification is used in medical billing and clinical recording to specify the clinical criteria for viral and prion infections of the central nervous system (ICD-10-CM A80-A89), ensuring healthcare documentation aligns with current federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for A80-A89 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- postpolio syndrome (G14)
- sequelae of poliomyelitis (B91)
- sequelae of viral encephalitis (B94.1)
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with A80-A89?
Per official ICD-10-CM Excludes1 instructions, A80-A89 must not be reported together with: postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to A80-A89 in its code family, with their registry titles.
- A80 — Acute poliomyelitis
- A81 — Atypical virus infections of central nervous system
- A82 — Rabies
- A83 — Mosquito-borne viral encephalitis
- A84 — Tick-borne viral encephalitis
- A85 — Other viral encephalitis, not elsewhere classified
- A86 — Unspecified viral encephalitis
- A87 — Viral meningitis
- A88 — Other viral infections of central nervous system, not elsewhere classified
- A89 — Unspecified viral infection of central nervous system