Disruptive mood dysregulation disorder

Disruptive mood dysregulation disorder is a mental health diagnosis for children and adolescents marked by a persistently irritable or angry mood punctuated by frequent temper outbursts that are far more severe and frequent than what would be expected for the child's age and the situation provoking them. It was added to the DSM-5 in 2013 as a mood disorder category, developed from research the psychiatrist Ellen Leibenluft began around 2003 into a broad phenotype of childhood mania that did not fit cleanly into existing bipolar diagnoses. Because its irritability and outbursts overlap heavily with attention deficit hyperactivity disorder, oppositional defiant disorder, anxiety disorders, childhood bipolar disorder, intermittent explosive disorder and major depressive disorder, diagnosing it requires ruling out each of these alternatives. The World Health Organization declined to give it a separate code in ICD-11, recommending instead that it be recorded as a specifier of oppositional defiant disorder.