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. F03 Unspecified dementia

    Inclusion term(s):

    • Major neurocognitive disorder NOS
    • Presenile dementia NOS
    • Presenile psychosis NOS
    • Primary degenerative dementia NOS
    • Senile dementia NOS
    • Senile dementia depressed or paranoid type
    • Senile psychosis NOS

    Excludes1

    Excludes2

    • mild memory disturbance due to known physiological condition (F06.8)
    • senile dementia with delirium or acute confusional state (F05)
    1. F03.9 Unspecified dementia, unspecified severity

      1. F03.90 Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

        Inclusion term(s):

        • Dementia NOS
      2. F03.91 Unspecified dementia, unspecified severity, with behavioral disturbance

        • F03.911 Unspecified dementia, unspecified severity, with agitation

          Inclusion term(s):

          • Unspecified dementia, unspecified severity, with aberrant motor behavior such as restlessness, rocking, pacing, or exit-seeking
          • Unspecified dementia, unspecified severity, with verbal or physical behaviors such as profanity, shouting, threatening, anger, aggression, combativeness, or violence
        • F03.918 Unspecified dementia, unspecified severity, with other behavioral disturbance

          Inclusion term(s):

          • Unspecified dementia, unspecified severity, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
      3. F03.92 Unspecified dementia, unspecified severity, with psychotic disturbance

        Inclusion term(s):

        • Unspecified dementia, unspecified severity, with psychotic disturbance such as hallucinations, paranoia, suspiciousness, or delusional state
      4. F03.93 Unspecified dementia, unspecified severity, with mood disturbance

        Inclusion term(s):

        • Unspecified dementia, unspecified severity, with mood disturbance such as depression, apathy, or anhedonia
      5. F03.94 Unspecified dementia, unspecified severity, with anxiety

    2. F03.A Unspecified dementia, mild

      1. F03.A0 Unspecified dementia, mild, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

        Inclusion term(s):

        • Dementia, mild, NOS
      2. F03.A1 Unspecified dementia, mild, with behavioral disturbance

        • F03.A11 Unspecified dementia, mild, with agitation

          Inclusion term(s):

          • Unspecified dementia, mild, with aberrant motor behavior such as restlessness, rocking, pacing, or exit-seeking
          • Unspecified dementia, mild, with verbal or physical behaviors such as profanity, shouting, threatening, anger, aggression, combativeness, or violence
        • F03.A18 Unspecified dementia, mild, with other behavioral disturbance

          Inclusion term(s):

          • Unspecified dementia, mild, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
      3. F03.A2 Unspecified dementia, mild, with psychotic disturbance

        Inclusion term(s):

        • Unspecified dementia, mild, with psychotic disturbance such as hallucinations, paranoia, suspiciousness, or delusional state
      4. F03.A3 Unspecified dementia, mild, with mood disturbance

        Inclusion term(s):

        • Unspecified dementia, mild, with mood disturbance such as depression, apathy, or anhedonia
      5. F03.A4 Unspecified dementia, mild, with anxiety

    3. F03.B Unspecified dementia, moderate

      1. F03.B0 Unspecified dementia, moderate, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

        Inclusion term(s):

        • Dementia, moderate, NOS
      2. F03.B1 Unspecified dementia, moderate, with behavioral disturbance

        • F03.B11 Unspecified dementia, moderate, with agitation

          Inclusion term(s):

          • Unspecified dementia, moderate, with aberrant motor behavior such as restlessness, rocking, pacing, or exit-seeking
          • Unspecified dementia, moderate, with verbal or physical behaviors such as profanity, shouting, threatening, anger, aggression, combativeness, or violence
        • F03.B18 Unspecified dementia, moderate, with other behavioral disturbance

          Inclusion term(s):

          • Unspecified dementia, moderate, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
      3. F03.B2 Unspecified dementia, moderate, with psychotic disturbance

        Inclusion term(s):

        • Unspecified dementia, moderate, with psychotic disturbance such as hallucinations, paranoia, suspiciousness, or delusional state
      4. F03.B3 Unspecified dementia, moderate, with mood disturbance

        Inclusion term(s):

        • Unspecified dementia, moderate, with mood disturbance such as depression, apathy, or anhedonia
      5. F03.B4 Unspecified dementia, moderate, with anxiety

    4. F03.C Unspecified dementia, severe

      1. F03.C0 Unspecified dementia, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

        Inclusion term(s):

        • Dementia, severe, NOS
      2. F03.C1 Unspecified dementia, severe, with behavioral disturbance

        • F03.C11 Unspecified dementia, severe, with agitation

          Inclusion term(s):

          • Unspecified dementia, severe, with aberrant motor behavior such as restlessness, rocking, pacing, or exit-seeking
          • Unspecified dementia, severe, with verbal or physical behaviors such as profanity, shouting, threatening, anger, aggression, combativeness, or violence
        • F03.C18 Unspecified dementia, severe, with other behavioral disturbance

          Inclusion term(s):

          • Unspecified dementia, severe, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
      3. F03.C2 Unspecified dementia, severe, with psychotic disturbance

        Inclusion term(s):

        • Unspecified dementia, severe, with psychotic disturbance such as hallucinations, paranoia, suspiciousness, or delusional state
      4. F03.C3 Unspecified dementia, severe, with mood disturbance

        Inclusion term(s):

        • Unspecified dementia, severe, with mood disturbance such as depression, apathy, or anhedonia
      5. F03.C4 Unspecified dementia, severe, with anxiety

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.