A disorder diagnosed in childhood or adolescence age group characterized by aggressive behavior, deceitfulness, destruction of property or violation of rules that is persistent and repetitive, and within a one year period.

A repetitive and persistent pattern of behavior in which the basic rights of others or major age-appropriate societal norms or rules are violated. These behaviors include aggressive conduct that causes or threatens physical harm to other people or animals, nonaggressive conduct that causes property loss or damage, deceitfulness or theft, and serious violations of rules. The onset is before age 18. (From DSM-IV, 1994)

Mental disorder of childhood and adolescence characterized by repetitive and persistent patterns of conduct in which rights of others and age-appropriate societal rules are violated; the conduct is more serious than ordinary mischief and pranks.

Conduct disorder is a recurrent or persistent pattern of behavior that violates the rights of others or violates major age-appropriate societal norms or rules. Diagnosis is by history. Treatment of comorbid disorders and psychotherapy may help; however, many children require considerable supervision.

Conduct disorder (CD) is one of the most difficult and intractable mental health problems in children and adolescents. CD involves a number of problematic behaviors, including oppositional and defiant behaviors and antisocial activities (eg, lying, stealing, running away, physical violence, sexually coercive behaviors).