What is the minimum age for the onset of symptoms related to DMDD?

The correct response is based on the diagnostic criteria established by the DSM-5 for Disruptive Mood Dysregulation Disorder (DMDD). According to the DSM-5, the symptoms of DMDD must begin before the age of 10. This condition is characterized by severe temper outbursts that are out of proportion to the situation and a persistently irritable or angry mood. The age of onset is critical in distinguishing DMDD from other disorders, such as bipolar disorder, as it ensures that the symptoms manifest during childhood and are consistent with the developmental timeline expected for this diagnosis. The emphasis on a minimum age of onset before age 10 helps clinicians identify DMDD early in a child's life, allowing for timely intervention and support.