A80 Acute poliomyelitis

A80.0 Acute paralytic poliomyelitis, vaccine-associated

A80.1 Acute paralytic poliomyelitis, wild virus, imported

A80.2 Acute paralytic poliomyelitis, wild virus, indigenous

A80.3 Acute paralytic poliomyelitis, other and unspecified

A80.4 Acute nonparalytic poliomyelitis

A80.9 Acute poliomyelitis, unspecified

A81 Atypical virus infections of central nervous system

Incl.:

prion diseases of the central nervous system

A81.0 Creutzfeldt-Jakob disease

Incl.:

Subacute spongiform encephalopathy

A81.1 Subacute sclerosing panencephalitis

Incl.:

Dawson inclusion body encephalitis

Van Bogaert sclerosing leukoencephalopathy

A81.2 Progressive multifocal leukoencephalopathy

Incl.:

Multifocal leukoencephalopathy NOS

A81.8 Other atypical virus infections of central nervous system

Incl.:

Kuru

A81.9 Atypical virus infection of central nervous system, unspecified

Incl.:

Prion disease of central nervous system NOS

A82 Rabies

A82.0 Sylvatic rabies

A82.1 Urban rabies

A82.9 Rabies, unspecified

A83 Mosquito-borne viral encephalitis

Incl.:

mosquito-borne viral meningoencephalitis

Excl.:

Venezuelan equine encephalitis ( A92.2)

A83.0 Japanese encephalitis

A83.1 Western equine encephalitis

A83.2 Eastern equine encephalitis

A83.3 St Louis encephalitis

A83.4 Australian encephalitis

Incl.:

Kunjin virus disease

A83.5 California encephalitis

Incl.:

California meningoencephalitis

La Crosse encephalitis

A83.6 Rocio virus disease

A83.8 Other mosquito-borne viral encephalitis

A83.9 Mosquito-borne viral encephalitis, unspecified

A84 Tick-borne viral encephalitis

Incl.:

tick-borne viral meningoencephalitis

A84.0 Far Eastern tick-borne encephalitis [Russian spring-summer encephalitis]

A84.1 Central European tick-borne encephalitis

A84.8 Other tick-borne viral encephalitis

Incl.:

Louping ill

Powassan virus disease

A84.9 Tick-borne viral encephalitis, unspecified

A85 Other viral encephalitis, not elsewhere classified

Incl.:

specified viral:

• encephalomyelitis NEC
• meningoencephalitis NEC

Excl.:

benign myalgic encephalomyelitis ( G93.3)

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)

A85.0† Enteroviral encephalitis (G05.1*)

Incl.:

Enteroviral encephalomyelitis

A85.1† Adenoviral encephalitis (G05.1*)

Incl.:

Adenoviral meningoencephalitis

A85.2 Arthropod-borne viral encephalitis, unspecified

A85.8 Other specified viral encephalitis

Incl.:

Encephalitis lethargica

Von Economo-Cruchet disease

A86 Unspecified viral encephalitis

Incl.:

Viral:

• encephalomyelitis NOS
• meningoencephalitis NOS

A87 Viral meningitis

Excl.:

meningitis due to:

• herpesvirus [herpes simplex] (B00.3)
• measles virus (B05.1)
• mumps virus (B26.1)
• poliomyelitis virus (A80.-)
• zoster (B02.1)

A87.0† Enteroviral meningitis (G02.0*)

Incl.:

Coxsackievirus meningitis

Echovirus meningitis

A87.1† Adenoviral meningitis (G02.0*)

A87.2 Lymphocytic choriomeningitis

Incl.:

Lymphocytic meningoencephalitis

A87.8 Other viral meningitis

A87.9 Viral meningitis, unspecified

A88 Other viral infections of central nervous system, not elsewhere classified

Excl.:

viral:

• encephalitis NOS (A86)
• meningitis NOS (A87.9)

A88.0 Enteroviral exanthematous fever [Boston exanthem]

A88.1 Epidemic vertigo

A88.8 Other specified viral infections of central nervous system

A89 Unspecified viral infection of central nervous system