Attention-Deficit and Disruptive Behavior Disorders
In DSM-IV, as in DSM-III-R, Attention-Deficit/Hyperactivity Disor ders, Oppositional Defiant Disorder, and Conduct Disorders are brought together under one heading, "Attention Deficit and Dis ruptive Behavior Disorders." Because the three categories are strongly associated, considerable attention was paid to comorbidity and the possibility of alternate formulations (e.g., Hyperkinetic Conduct Disorder remains a diagnosis in ICD-10). The subtyping of these disorders proved to be unsatisfactory in DSM-III-R. For example, the DSM-III-R diagnosis of Attention Deficit Without Hy peractivity was dropped from DSM-IV after extensive literature review and analysis of new data obtained from the Disruptive Behavior Disorders field trials. Questions were also raised about the clinical utility and validity of Oppositional Defiant Disorder as a separate diagnosis from Conduct Disorder, on the one hand, and from normal development on the other.