This category is for patients who have an organic brain syndrome but are not psychotic. If psychoses are present they should be diagnosed as previously indicated.

In children mild brain damage often manifests itself by hyperactivity, short attention span, easy distractability, and impulsiveness. Sometimes the child is withdrawn, listless, perseverative, and unresponsive. In exceptional cases there may be great difficulty in initiating action. These characteristics often contribute to a negative interaction between parent and child. If the organic handicap is the major etiological factor and the child is not psychotic, the case should be classified here. If the interactional factors are of major secondary importance, supply a second diagnosis under Behavior disorders of childhood and adolescence; if these interactional factors predominate give only a diagnosis from this latter category.


  1. Non-psychotic OBS with intracranial infection
  2. Non-psychotic OBS with drug, poison, or systemic intoxication
    1. Non-psychotic OBS with alcohol (simple drunkenness)
    2. Non-psychotic OBS with other drug, poison, or systemic intoxication
  3. Non-psychotic OBS with brain trauma
  4. Non-psychotic OBS with circulatory disturbance
  5. Non-psychotic OBS with epilepsy
  6. Non-psychotic OBS with disturbance of metabolism, growth or nutrition
  7. Non-psychotic OBS with senile or pre-senile brain disease
  8. Non-psychotic OBS with intracranial neoplasm
  9. Non-psychotic OBS with degenerative disease of central nervous system
  10. Non-psychotic OBS with other [and unspecified] physical condition
    1. [Acute brain syndrome, not otherwise specified]
    2. [Chronic brain syndrome, not otherwise specified]


See Organic Mental Disorders

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