Disruptive Mood Dysregulation Disorder has onset within which age range?

• A. Between 6 and 18 years
• B. Between 2 and 5 years
• C. Between 12 and 15 years
• D. After 18 years

Answer: (A)

Disruptive Mood Dysregulation Disorder presents in childhood and adolescence with chronic irritability and severe temper outbursts. The diagnostic framework specifies that symptoms begin before age 10, and the condition is defined for youths aged 6 to 18 years. So, the period during which onset commonly occurs—and the window clinicians use to describe who can have this disorder—is 6 to 18 years. Preschool ages (2–5) are outside the typical range, ages like 12–15 are within the range but don’t alone capture the full onset window, and after 18 years is outside the defined scope.