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A81 Atypical virus infections of central nervous system
BackA81.0Creutzfeldt-Jakob diseaseCategory3 →A81.00Creutzfeldt-Jakob disease, unspecifiedCategoryA81.01Variant Creutzfeldt-Jakob diseaseCategoryA81.09Other Creutzfeldt-Jakob diseaseCategoryA81.1Subacute sclerosing panencephalitisCategoryA81.2Progressive multifocal leukoencephalopathyCategoryA81.8Other atypical virus infections of central nervous systemCategory4 →A81.81KuruCategoryA81.82Gerstmann-Sträussler-Scheinker syndromeCategoryA81.83Fatal familial insomniaCategoryA81.89Other atypical virus infections of central nervous systemCategoryA81.9Atypical virus infection of central nervous system, unspecifiedCategory
Category
A81
Atypical virus infections of central nervous system
INCLUDES
diseases of the central nervous system caused by prions
CODING RULE
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-)
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-)
- Chapter
- I · Certain infectious and parasitic diseases
- Section
- A80-A89
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.