≥6 inattentive symptoms and/or ≥6 hyperactive-impulsive symptoms (≥5 for age ≥17) for ≥6 months, inconsistent with developmental level and negatively impacting activities
AA. Pervasive pattern of instability of interpersonal relationships, self-image, and affect, with marked impulsivity beginning by early adulthood; ≥5 of 9: frantic efforts to avoid abandonment; unstable intense relationships; identity disturbance; impulsivity in ≥2 damaging areas; suicidal/self-mutilating behaviour; affective instability; chronic emptiness; inappropriate intense anger; transient stress-related paranoia/dissociation
BA. ≥6 inattentive symptoms and/or ≥6 hyperactive-impulsive symptoms (≥5 for age ≥17) for ≥6 months, inconsistent with developmental level and negatively impacting activities B. Several symptoms present before age 12 C. Symptoms present in ≥2 settings (e.g. home, school, work, with friends)
Common specifiers
AMild / Moderate / Severe; With prominent dissociative features; With predominant impulsive behaviour; With predominant affective instability
ABipolar II disorder (episodic mood elevation; not reactive mood instability); MDD (full depressive episodes; without chronic identity/relational disturbance); PTSD (highly comorbid with BPD)
BAnxiety disorders (worry-driven inattention; no early-onset hyperactivity; no developmental pattern); Major depressive disorder (concentration impairment episode-bound; not developmental); Bipolar disorder (episodic; not chronic developmental pattern)