Substance Use Disorder is rated by the U.S. Department of Veterans Affairs under DC 9411 of 38 CFR § 4.130 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. This condition is frequently rated as secondary to Major Depressive Disorder or Anxiety Disorder under 38 C.F.R. § 3.310.
Substance use disorder is not independently service-connected. Under 38 CFR 3.301, disability that results from primary substance abuse as willful misconduct is not compensable. It becomes service-connectable only as secondary to an established service-connected condition (most often PTSD or depression) under Allen v. Principi (2001). When granted on that basis, the substance-use symptoms are evaluated as part of that underlying mental health condition using the General Rating Formula for Mental Disorders, not as a separate standalone rating.
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.