Disruptive, Impulse-Control, and Conduct Disorders
Learn
A repetitive, persistent pattern of behavior that violates the basic rights of others or major age-appropriate societal norms, spanning aggression, property destruction, deceitfulness, and serious rule violations.
Conduct Disorder describes a pattern -- not a single bad decision or a rough patch -- in which a child or adolescent repeatedly does things that seriously harm others or break major rules: physical aggression toward people or animals, destroying property, lying or stealing, or serious violations like running away or truancy. The diagnosis requires this pattern to be persistent and to genuinely violate others' rights or major norms, not just ordinary adolescent boundary-testing.
Two onset specifiers matter clinically: childhood-onset type (at least one symptom before age 10, more associated with continuing into adult antisocial patterns) versus adolescent-onset type (no symptoms before age 10, often more time-limited and socially mediated by peer context). The distinction meaningfully affects prognosis and is not just a technicality.
Impairment spans school (suspension, expulsion), family relationships (severe conflict, breakdown of trust), legal system involvement, and peer relationships (association with antisocial peer groups, or rejection by prosocial peers) -- often compounding across domains rather than staying contained to one area of life.
A specifier for limited prosocial emotions (lack of remorse or guilt, callous-unemotional traits, shallow affect, lack of concern about performance) identifies a subgroup with a more severe course and different treatment-response pattern; not everyone with Conduct Disorder shows this specifier.
What counts as a serious rule violation is shaped by context -- community violence exposure, family structure, and systemic factors (like exposure to unsafe neighborhoods) can produce behaviors that superficially resemble Conduct Disorder criteria without reflecting the same underlying pattern; clinicians should assess whether behavior is a reasonable adaptation to a person's actual environment before applying this diagnosis.
A common misconception is that Conduct Disorder is just a more severe label for normal teenage rebellion. It specifically requires genuine violations of others' rights or major norms -- physical aggression, destruction, theft, serious rule-breaking -- not the ordinary boundary-testing, arguing, or occasional rule-breaking common across typical adolescent development.
If the behaviors are confined to defiance, irritability, and argument without genuine rights violations, reconsider Oppositional Defiant Disorder instead. If the person is 18 or older with this history since before 15, consider whether Antisocial Personality Disorder criteria are now met.
A 14-year-old has repeatedly been suspended for fighting, was caught breaking into a neighbor's shed, and has stayed out overnight without permission multiple times since age 12 -- a pattern spanning aggression, property destruction, and serious rule violations for over a year.
Know
Conduct Disorder is a persistent pattern of genuinely rights-violating behavior -- aggression, destruction, deceit, serious rule-breaking -- not ordinary teenage defiance.
Notice
In a case, notice actual harm to people, animals, or property, or serious rule violations (running away, truancy), sustained over at least a year.
Distinguish
Distinguish from ODD by the presence of genuine rights violations, and from Antisocial Personality Disorder by age (never diagnosed together; CD before 15 is a prerequisite for later ASPD).
Recognize
A repeated, persistent pattern (at least 12 months, with at least one criterion in the last 6) across four categories -- aggression to people/animals, destruction of property, deceitfulness/theft, and serious rule violations -- distinguished from Oppositional Defiant Disorder by the presence of genuine rights violations, not just defiance and irritability.
Distinguish
Distinguish from ODD by the presence of genuine rights violations, and from Antisocial Personality Disorder by age (never diagnosed together; CD before 15 is a prerequisite for later ASPD).
Oppositional Defiant Disorder involves angry/irritable mood, argumentativeness, and defiance, but not the genuine rights-violating behaviors (aggression, destruction, theft, serious rule-breaking) that define Conduct Disorder -- ODD is a less severe pattern that can, but does not always, precede Conduct Disorder. Antisocial Personality Disorder cannot be diagnosed before age 18, and requires evidence of Conduct Disorder before age 15 as part of its own criteria -- the two are developmentally linked but never diagnosed simultaneously in the same person at the same age.
Students often treat these as interchangeable labels for 'antisocial behavior' at different ages. The relationship is structural, not just descriptive: CD before 15 is a specific prerequisite criterion within ASPD's own diagnostic criteria, not merely a common association.
Aggressive behavior in a young person is sometimes labeled Conduct Disorder by default, without checking whether the aggression is truly part of a broader, sustained rights-violating pattern, or is instead episodic and reactive -- the latter points to Intermittent Explosive Disorder specifically, not Conduct Disorder.
Repeated stealing in a young person is sometimes assumed to be either purely 'behavioral' (Conduct Disorder) or automatically Kleptomania, without examining the specific motive and pattern. Because Kleptomania's criteria explicitly exclude cases better explained by Conduct Disorder, ruling out a broader rule-violating pattern is a necessary step before considering Kleptomania.
Students sometimes assume any escalation of defiance eventually becomes Conduct Disorder. The diagnoses are content-based, not purely severity-based -- the presence of aggression, destruction, theft, or serious rule-breaking is what specifically triggers Conduct Disorder.
Reason
Apply
Distinguish Conduct Disorder's genuine rights-violating pattern from Oppositional Defiant Disorder's defiance-without-rights-violation pattern.
Recognize Oppositional Defiant Disorder's pattern of angry, argumentative, and vindictive behavior toward authority figures, distinguished from Conduct Disorder's violation of others' basic rights and from ADHD-driven impulsivity.
Retrieve
2 question(s) reference this disorder. Practice Conduct Disorder →
Master