Bipolar I Disorder

At least 1 manic episode is required. Elevated, expansive, or irritable mood and increased energy persist most of the day, nearly every day, with the required associated symptoms.

Timing requirement

Duration

Mania ≥1 week, or any duration if hospitalization

1 wk1 mo6 mo1 yr2 yr

Timing in context

A major depressive episode is not required for Bipolar I disorder.

Sources and review

Last content review: August 21, 2026