Cyclothymic Disorder is rated by the U.S. Department of Veterans Affairs under DC 9431 of 38 CFR § 4.130, DC 9431 across 6 severity tiers (0% / 10% / 30% / 50% / 70%…). Service connection requires (1) a current diagnosis, (2) an in-service event, injury, or exposure, and (3) a medical nexus opinion linking the two under 38 C.F.R. § 3.303.
Cyclothymic Disorder is a chronic mood disturbance in which numerous periods of hypomanic symptoms and numerous periods of depressive symptoms persist for at least two years (one year in adolescents), without ever meeting full criteria for a hypomanic, manic, or major depressive episode. The fluctuating highs and lows are present more than half the time, never remit for longer than two months at a stretch, and produce ongoing instability in mood, energy, sleep, and judgment. Though individual episodes are subthreshold, the relentless cycling causes meaningful distress and impairs reliable functioning at work and in relationships.
Rating criteria text quoted verbatim from 38 C.F.R. § 4.130 (Mental disorders). Source verified 2026-05-15 by ClaimRecon Editorial Team against the Cornell Law CFR mirror; eCFR.gov is the authoritative government source.