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Gulf War Illness VA Disability Rating is rated by the U.S. Department of Veterans Affairs under DC 6354 of 38 C.F.R. § 3.317 across 5 severity tiers (100% -- Nearly constant, restricts activities to <50% / 60% -- Nearly constant, restricts to 50-75% / 40% -- Wax and wane, 4-6 weeks incapacitation/year / 20% -- Controlled by medication / 10% -- Mild, intermittent). 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.
Gulf War Illness is rated under DC 6354 (CFS criteria). Under 38 C.F.R. 3.317, veterans who served in Southwest Asia after August 1990 may establish service connection for undiagnosed illnesses. The PACT Act expanded coverage.
Gulf War Illness (DC 6354) is evaluated under 38 C.F.R. § 3.317 using the chronic fatigue rating framework. Because it is rated by analogy to the general schedule, the 5 levels below describe the body-system criteria the VA applies — the percentage assigned to Gulf War Illness depends on the specific findings (range of motion, frequency, severity, or functional loss) documented at the C&P exam and in the medical record.
Rating criteria reference 38 C.F.R. Part 4 (Schedule for Rating Disabilities). This entry has not yet undergone editorial review against the live regulation text — consult the authoritative source directly before relying on the criteria shown.