Externalizing disorders often involve emotion dysregulation problems and impulsivity that are manifested as antisocial behavior and aggression in opposition to authority, societal norms, and often violate the rights of others.
[4] Moreover, an individual's symptoms should be atypical for their cultural and environmental context and physical medical conditions should be ruled out before an externalizing disorder diagnosis is considered.
"[10] Hyperactivity and impulsivity ADHD symptoms include: "often fidgets with or taps hands or feet or squirms in seat," "often leaves seat in situations when remaining seated is expected," "often runs about or climbs in situations where it is inappropriate," "is often unable to play or engage in leisure activities quietly," "is often "on the go," acting as if "driven by a motor," "often talks excessively," "often blurts out an answer before a question has been completed," "often has difficulty waiting his or her turn," and "often interrupts or intrudes on others.
[10] ODD symptoms include: "often loses temper," "is often touchy or easily annoyed," "is often angry and resentful," "often argues with authority figures, or for children and adolescents, with adults," "often actively defies or refuses to comply with requests from authority figures or with rules," "often deliberately annoys others," and "often blames others for his or her mistakes or misbehavior.
[2] CD symptoms include "often bullies, threatens, or intimidates others," "often initiates physical fights," "has used a weapon that can cause serious physical harm to others," "has been physically cruel to people," "has been physically cruel to animals," "has stolen while confronting a victim," "has forced someone into sexual activity," "has deliberately engaged in fire setting with the intention of causing serious damage," "has deliberately destroyed others' property (other than by fire setting)," "has broken into someone else's house, building, or car," "often lies to obtain goods or favors or to avoid obligations," "has stolen items of nontrivial value without confronting a victim," "often stays out at night despite parental prohibitions, beginning before age 13 years," "has run away from home overnight at least twice while living in the parental or parental surrogate home, or once without returning for a lengthy period," and "is often truant from school, beginning before age 13 years.
"[2] In order to receive a pyromania diagnosis, "the fire setting is not done for monetary gain, as an expression of sociopolitical ideology, to conceal criminal activity, to express anger or vengeance, to improve one's living circumstances, in response to a delusion or hallucination, or as a result of impaired judgment.
"[2] In order to receive a kleptomania diagnosis, "the stealing is not committed to express anger or vengeance and is not in response to a delusion or a hallucination.
"[2] Additionally, to receive an IED diagnosis, an individual must be six years or older (chronologically or developmentally), have functional impairment, and not have symptoms better explained by another mental disorder, medical condition, or substance.
"[12] Given that at least 10 separate classes of drugs are covered in the DSM-5 Substance-Related and Addictive Disorders section,[12] it is outside the scope of this article, and referral to the DSM-5[12] for more information on signs and symptoms is advised.
[23] Psychopathic traits have been measured in children as young as two-years-old,[23] are moderately stable,[23][24] are heritable,[24] and associated with atypical affective,[23][24] cognitive, personality, and social characteristics.
[29][30] The best-evidenced treatment for childhood conduct and externalizing problems more broadly, including youth with ADHD, ODD, and CD, is parent management training, a form of cognitive behavioral therapy.
ADHD, ODD, and CD were previously classified in the Attention-deficit and Disruptive Behavior Disorders section in DSM-IV.
[10] ODD, CD, pyromania, kleptomania, and IED are now categorized in the new Disruptive, Impulse-Control, and Conduct Disorders chapter of DSM-5.