ICD-11

Oppositional defiant disorder is a persistent pattern (e.g., 6 months or more) of markedly defiant, disobedient, provocative or spiteful behaviour that occurs more frequently than is typically observed in individuals of comparable age and developmental level and that is not restricted to interaction with siblings. Oppositional defiant disorder may be manifest in prevailing, persistent angry or irritable mood, often accompanied by severe temper outbursts or in headstrong, argumentative and defiant behaviour. The behaviour pattern is of sufficient severity to result in significant impairment in personal, family, social, educational, occupational or other important areas of functioning

Meets all definitional requirements for oppositional defiant disorder. This form of oppositional defiant disorder is not characterised by prevailing, persistent, angry or irritable mood, but does feature headstrong, argumentative, and defiant behaviour.

All definitional requirements for oppositional defiant disorder without chronic irritability-anger are met. The individual does not exhibit characteristics referred to as ‘callous and unemotional’, such as lack of empathy or sensitivity to the feelings of others and a lack of concern for others’ distress.