VITiếng Việt
ICD-10 Vietnam

A85Other viral encephalitis, not elsewhere classified

Code usage status

Primary diagnosis

Select a more specific code

Apply only when it matches the confirmed diagnosis and the documented clinical record.

Specificity

Do not use A85 directly

Use the most specific code supported by the record.

Chapter I
Certain infectious and parasitic diseases
Group A80-A89
Viral infections of the central nervous system
Official Vietnamese name
Bệnh viêm não khác do virus, không phân loại mục khác
Additional WHO coding guidance
Incl.: specified viral: encephalomyelitis NEC meningoencephalitis NEC Excl.: encephalitis due to: herpesvirus [herpes simplex] (B00.4) measles virus (B05.0) mumps virus (B26.2) poliomyelitis virus (A80.-) zoster (B02.0) lymphocytic choriomeningitis (A87.2) myalgic encephalomyelitis (G93.3)

Related A85 codes

A85.0 Primary diagnosis candidate Enteroviral encephalitis (G05.1*) A85.1 Primary diagnosis candidate Adenoviral encephalitis (G05.1*) A85.2 Primary diagnosis candidate Arthropod-borne viral encephalitis, unspecified A85.8 Primary diagnosis candidate Other specified viral encephalitis

Clinical record checklist

View coding guide →
  • Confirm that the code matches the final documented diagnosis.
  • Use one primary-diagnosis code and record only relevant additional conditions.
  • Review Ministry indicators, inclusions, exclusions and notes.
  • Do not infer a diagnosis beyond the clinical record.

2026 regulatory basis

Indicators are taken from columns 24–29 of the classification accompanying Circular 06/2026/TT-BYT, cross-referenced with Decision 1849/QĐ-BYT and Official Dispatch 4059/BYT-BH.