Intermittent Explosive Disorder is rated by the U.S. Department of Veterans Affairs under DC 9440 of 38 CFR § 4.130, DC 9440 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.
Intermittent Explosive Disorder (IED) is a DSM-5 impulse-control disorder marked by recurrent, impulsive aggressive outbursts that are grossly out of proportion to any provocation and not premeditated or committed to achieve a tangible goal. The aggression presents either as frequent verbal tirades or non-damaging assaults (roughly twice weekly for three months) or as more serious episodes involving property destruction, injury, or assault (at least three within a year). Outbursts cause marked distress, occupational or interpersonal impairment, or legal and financial consequences, and the diagnosis requires the person to be at least six years old with symptoms not better explained by another mental disorder, substance use, or a medical condition.
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.