What characterizes a hypomanic episode?

A hypomanic episode is characterized by a distinct period of elevated, expansive, or irritable mood that lasts for at least four days. During this time, individuals may also experience increased energy levels, heightened activity, and other symptoms that reflect an abnormal change in mood and functioning. It's important to note that while the mood is elevated, hypomania is less severe than a manic episode and does not result in significant impairment in social or occupational functioning, nor does it typically require hospitalization.

The focus on the mood being distinctly elevated or irritable for a minimum duration of four days serves as a key diagnostic criterion. This differentiates hypomanic episodes from other mood disorders, emphasizing the specific nature and duration needed for proper classification.