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ICD-10 diagnosis code

A86 Unspecified viral encephalitis

This page in Swedish

A86 is the ICD-10 code for Unspecified viral encephalitis. It is a three-character category that is not subdivided further. It belongs to the block A80–A89 (Viral infections of the central nervous system) in Chapter I, Certain infectious and parasitic diseases.

Code type
Category (3 characters)
Chapter
I · A00–B99
Classification
WHO ICD-10, 2019 version

What A86 includes

Conditions and terms that are coded here.

  • Viral:
    • encephalomyelitis NOS
    • meningoencephalitis NOS

A86 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

A86Ospecificerad virusencefalit

  • A86.9Ospecificerad virusencefalit
NorwayICD-10-NO

A86Uspesifisert virusencefalitt

DenmarkICD-10-DK

DA86Viral hjernebetændelse UNS

  • DA869Viral encefalitis UNS
FinlandICD-10-FI

A86Määrittämätön virusaivotulehdus

GermanyICD-10-GM

A86Virusenzephalitis, nicht näher bezeichnet

FranceICD-10-FR

A86Encéphalite virale, sans précision

NetherlandsICD-10-NL

A86niet gespecificeerde virale encefalitis

United StatesICD-10-CM

A86Unspecified viral encephalitis

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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