This block comprises a range of mental disorders grouped together on the basis of their having in common a demonstrable etiology in cerebral disease, brain injury, or other insult leading to cerebral dysfunction. The dysfunction may be primary, as in diseases, injuries, and insults that affect the brain directly and selectively; or secondary, as in systemic diseases and disorders that attack the brain only as one of the multiple organs or systems of the body that are involved.

  1. F02 Dementia in other diseases classified elsewhere

    Includes:

    • Major neurocognitive disorder in other diseases classified elsewhere

    Excludes2

    • dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97)
    • vascular dementia (F01.5-)
    1. F02.8 Dementia in other diseases classified elsewhere

      1. F02.80 Dementia in other diseases classified elsewhere without behavioral disturbance

        Inclusion term(s):

        • Dementia in other diseases classified elsewhere NOS
        • Major neurocognitive disorder in other diseases classified elsewhere
      2. F02.81 Dementia in other diseases classified elsewhere with behavioral disturbance

        Inclusion term(s):

        • Dementia in other diseases classified elsewhere with aggressive behavior
        • Dementia in other diseases classified elsewhere with combative behavior
        • Dementia in other diseases classified elsewhere with violent behavior
        • Major neurocognitive disorder in other diseases classified elsewhere with aggressive behavior
        • Major neurocognitive disorder in other diseases classified elsewhere with combative behavior
        • Major neurocognitive disorder in other diseases classified elsewhere with violent behavior
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.