A81 Atypical virus infections of central nervous system

Non-billable header with 5 child codes.

Includes

• diseases of the central nervous system caused by prions

Use additional code

• code, if applicable, to identify:
• dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4)
• dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)
• dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3)
• dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2)
• dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)
• mild neurocognitive disorder due to known physiological condition (F06.7-)

Applies from A81 Atypical virus infections of central nervous system

Includes

• diseases of the central nervous system caused by prions

Use additional code

• code, if applicable, to identify:
• dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4)
• dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)
• dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3)
• dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2)
• dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)
• mild neurocognitive disorder due to known physiological condition (F06.7-)

Codes under A81

• 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

Nearby codes

• A81 Atypical virus infections of central nervous system (this code)
• A81.0 Creutzfeldt-Jakob disease
• A81.00 Creutzfeldt-Jakob disease, unspecified
• A81.01 Variant Creutzfeldt-Jakob disease
• A81.09 Other Creutzfeldt-Jakob disease
• A81.1 Subacute sclerosing panencephalitis