1. G30 Alzheimer's disease

    Use Additional code to identify:
    delirium, if applicable (F05)
    dementia with behavioral disturbance (F02.81)
    dementia without behavioral disturbance (F02.80)


    • Alzheimer's dementia senile and presenile forms


    • senile degeneration of brain NEC (G31.1)
    • senile dementia NOS (F03)
    • senility NOS (R41.81)
    1. G30.0 Alzheimer's disease with early onset

    2. G30.1 Alzheimer's disease with late onset

    3. G30.8 Other Alzheimer's disease

    4. G30.9 Alzheimer's disease, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.