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Gulf War illness: undiagnosed illness and presumptive conditions

Many Gulf War veterans returned with chronic, medically unexplained symptoms. VA recognizes Gulf War Illness, including undiagnosed illnesses and chronic multisymptom conditions, as presumptively service-connected for those who served in the Southwest Asia theater.

Who is covered

Qualifying locations and dates under the PACT Act:

Presumptive conditions (14)

With a qualifying diagnosis and the service above, VA presumes these conditions are connected to the exposure.

Chronic fatigue syndromeFibromyalgiaFunctional gastrointestinal disordersMedically unexplained chronic multisymptom illness (MUCMI)Undiagnosed illness with cardiovascular, muscle/joint, headache, neurological, neuropsychological, skin, respiratory, sleep, GI, or urological signsBrucellosisCampylobacter jejuniCoxiella burnetii (Q fever)MalariaMycobacterium tuberculosisNontyphoid SalmonellaShigellaVisceral leishmaniasisWest Nile virus

To see how these conditions combine with others, use the combined-rating calculator.

Documents VA asks for

Related guides: Intent to File · C&P exam preparation · nexus letters

Legal authority and sources

38 CFR 3.317; PACT Act 2022 (Pub.L.117-168)

The exposure catalog with primary sources is free in VA Ready for iOS, Vet Ready for Android and VA Ready for Windows; Pro adds Claim Intel and the full 38 CFR rating criteria for every condition.

More from VA Ready: all toxic exposures · ratings by condition · pay rates

Presumptive conditions, eligible locations, and dates are summarized from VA.gov and the cited authorities and can change. Always confirm current eligibility at VA.gov or with a VA-accredited representative. VA Ready is not affiliated with the U.S. Department of Veterans Affairs, and this page is not legal or medical advice.