A81
A81
Atypical virus infections of central nervous system
A81.0
Creutzfeldt-Jakob disease
A81.1
Subacute sclerosing panencephalitis
A81.2
Progressive multifocal leukoencephalopathy
A81.8
Other atypical virus infections of central nervous system
A81.9
Atypical virus infection of central nervous system, unspecified