Acute Stress Disorder is rated by the U.S. Department of Veterans Affairs under DC 9413 of 38 CFR § 4.130, DC 9413 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.
Acute Stress Disorder (ASD) is a DSM-5 trauma- and stressor-related condition that develops after exposure to actual or threatened death, serious injury, or sexual violence, producing intrusion, negative mood, dissociative, avoidance, and arousal symptoms. By definition the symptom picture lasts from 3 days up to 1 month after the trauma; when the disturbance persists beyond one month the diagnosis is reclassified as posttraumatic stress disorder. Functionally it resembles early PTSD, with hyperarousal, flashbacks, sleep disruption, emotional numbing, and impaired concentration that interfere with work and 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.