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. F06 Other mental disorders due to known physiological condition

    Includes:

    • mental disorders due to endocrine disorder
    • mental disorders due to exogenous hormone
    • mental disorders due to exogenous toxic substance
    • mental disorders due to primary cerebral disease
    • mental disorders due to somatic illness
    • mental disorders due to systemic disease affecting the brain

    Excludes1

    • unspecified dementia (F03)

    Excludes2

    • delirium due to known physiological condition (F05)
    • dementia as classified in F01-F02
    • other mental disorders associated with alcohol and other psychoactive substances (F10-F19)
    1. F06.0 Psychotic disorder with hallucinations due to known physiological condition

      Inclusion term(s):

      • Organic hallucinatory state (nonalcoholic)
    2. F06.1 Catatonic disorder due to known physiological condition

      Inclusion term(s):

      • Catatonia associated with another mental disorder
      • Catatonia NOS
    3. F06.2 Psychotic disorder with delusions due to known physiological condition

      Inclusion term(s):

      • Paranoid and paranoid-hallucinatory organic states
      • Schizophrenia-like psychosis in epilepsy
    4. F06.3 Mood disorder due to known physiological condition

      1. F06.30 Mood disorder due to known physiological condition, unspecified

      2. F06.31 Mood disorder due to known physiological condition with depressive features

        Inclusion term(s):

        • Depressive disorder due to known physiological condition, with depressive features
      3. F06.32 Mood disorder due to known physiological condition with major depressive-like episode

        Inclusion term(s):

        • Depressive disorder due to known physiological condition, with major depressive-like episode
      4. F06.33 Mood disorder due to known physiological condition with manic features

        Inclusion term(s):

        • Bipolar and related disorder due to a known physiological condition, with manic features
        • Bipolar and related disorder due to known physiological condition, with manic- or hypomanic-like episodes
      5. F06.34 Mood disorder due to known physiological condition with mixed features

        Inclusion term(s):

        • Bipolar and related disorder due to known physiological condition, with mixed features
        • Depressive disorder due to known physiological condition, with mixed features
    5. F06.4 Anxiety disorder due to known physiological condition

    6. F06.8 Other specified mental disorders due to known physiological condition

      Inclusion term(s):

      • Epileptic psychosis NOS
      • Obsessive-compulsive and related disorder due to a known physiological condition
      • Organic dissociative disorder
      • Organic emotionally labile [asthenic] disorder
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.