Three-level Model of DBT-informed Care for Youth With and/or at Familial Risk for Bipolar Disorder (DB3)

Inclusion Criteria: 1\) English-speaking; 2) Age 13 years, 0 months to 23 years, 11 months; 3) Meet diagnostic criteria for BD by KSADS-PL (\< 20 years of age) or SCID-5-RV (≥ 20 years of age) OR have a biological parent/sibling with BD (type I or II) confirmed via KSADS-PL or SCID-5-RV; 4) If BD-I, taking ≥1 mood stabilizing medication (i.e., antimanic anticonvulsant, antipsychotic, and/or lithium); 5) Followed by a psychiatrist who provides ongoing care; 6) Able and willing to give informed consent/assent to participate. Exclusion Criteria: 1\) Evidence of mental retardation, moderate to severe autism spectrum disorder, or organic central nervous system disorder by the K-SADS-PL (\< 20 years of age), parent report, medical history, or school records that would interfere with active participation in DBT; 2) A life-threatening medical condition requiring immediate treatment; 3) Current victim of sexual or physical abuse; 4) Current substance use disorder other than mild cannabis or alcohol use disorder; 5) Meets assessment criteria for Level 3 at enrollment.