Functional Gastrointestinal Disorders (IBS, Functional Dyspepsia): VA Presumptive Condition (Gulf War)
VeteranHQ lists Functional Gastrointestinal Disorders (IBS, Functional Dyspepsia) as a presumptive condition in the Gulf War Service group. The exposure it is tied to is: Intestinal infections acquired during deployment, chemical exposures, psychological stress, antibiotic use, dietary changes. The presumption is effective September 26, 1994. It is governed by 38 CFR § 3.317; 38 USC § 1117.
A presumption removes one requirement and one only: the veteran does not have to prove a medical link between the condition and service. Everything else still applies. There must be a current diagnosis, the service has to meet the requirements below, and VA decides the claim on the evidence in the record.
What qualifies: Functional Gastrointestinal Disorders (IBS, Functional Dyspepsia)
- Service era
- Gulf War Era (August 2, 1990 – present)
- Service location
- Southwest Asia theater of operations (Iraq, Kuwait, Saudi Arabia, the neutral zone between Iraq and Saudi Arabia, Bahrain, Qatar, the United Arab Emirates, Oman, the Gulf of Aden, the Gulf of Oman, the Persian Gulf, the Arabian Sea, the Red Sea, and the airspace above them, per 38 CFR § 3.317(e)(2)); or Afghanistan, Israel, Egypt, Turkey, Syria or Jordan, which 38 USC § 1117(f) adds
- Exposure
- Intestinal infections acquired during deployment, chemical exposures, psychological stress, antibiotic use, dietary changes
- Effective date
- September 26, 1994
- Filing deadline
- No statutory filing deadline. Public Law 117-168 § 405 amended 38 USC § 1117(a)(1) in 2022 to reach a qualifying chronic disability that became manifest to any degree at any time. 38 CFR § 3.317(a)(1)(i) still reads 10 percent or more not later than December 31, 2026 and has not been updated to match; the statute controls
- Diagnostic code
- 7319
Service required for this presumption
Active duty service during the Persian Gulf War in the Southwest Asia theater of operations, or in Afghanistan, Israel, Egypt, Turkey, Syria or Jordan: 38 USC § 1117(f) names all of them, and the theater itself is defined at 38 CFR § 3.317(e)(2) to include the Gulf of Aden, the Gulf of Oman, the Persian Gulf, the Arabian Sea, the Red Sea, the Iraq-Saudi neutral zone and the airspace above. Any period of service. There is no minimum severity and no time limit: Public Law 117-168 § 405 amended 38 USC § 1117(a)(1) in 2022 to reach a qualifying chronic disability that became manifest to ANY DEGREE AT ANY TIME. 38 CFR § 3.317(a)(1)(i) still carries the older 10 percent by December 31, 2026 language and has not been updated; the statute controls. The disability must still be a qualifying chronic disability under § 1117(a)(2). 38 CFR § 3.317(a)(2)(i)(B)(3) names functional gastrointestinal disorders as a medically unexplained chronic multisymptom illness, so the diagnosis is the qualifying route rather than a disqualification.
About this presumption
Functional gastrointestinal disorders (FGIDs) — including Irritable Bowel Syndrome (IBS), functional dyspepsia, and functional diarrhea — are gut-brain interaction disorders diagnosed by symptom criteria (Rome IV criteria) in the absence of structural or biochemical abnormalities. Gulf War veterans have elevated rates of IBS and functional dyspepsia, potentially due to post-infectious IBS following parasitic infections or enteric illness acquired during deployment, coupled with psychological stress and antibiotic exposure. The VA treats these as covered medically unexplained illnesses under 38 CFR § 3.317.
Evidence still needed
A presumption does not remove the evidence requirement. VA still needs a current diagnosis from a medical provider and service records that show the qualifying service above. What it removes is the medical opinion connecting the two.
Gastroenterology or primary care records documenting IBS using Rome IV criteria (recurrent abdominal pain ≥1 day/week for 3+ months, associated with ≥2 of: defecation, change in stool frequency, change in stool form); colonoscopy or upper endoscopy ruling out IBD, celiac, or other structural causes; stool studies ruling out infectious etiology.
Controlling legal authority
38 CFR § 3.317; 38 USC § 1117
Related on VeteranHQ
- Irritable bowel syndrome (IBS): 38 CFR Part 4 rating criteriaThe percentage tiers VA applies once service connection is established, under DC 7319.
- VA presumptive conditions, explainedHow presumptive service connection works, and what it does not cover.
- All presumptive conditions by exposureAgent Orange, PACT Act, Camp Lejeune, Gulf War, and ionizing radiation.
Questions About Functional Gastrointestinal Disorders (IBS, Functional Dyspepsia) and Presumptive Service Connection
Is Functional Gastrointestinal Disorders (IBS, Functional Dyspepsia) a VA presumptive condition?
Yes. VeteranHQ lists Functional Gastrointestinal Disorders (IBS, Functional Dyspepsia) as presumptive in the Gulf War Service group, effective September 26, 1994, under 38 CFR § 3.317; 38 USC § 1117. A presumption removes the requirement to prove a medical link to service. A current diagnosis and qualifying service are still required, and VA decides the claim.
What service qualifies for the Functional Gastrointestinal Disorders (IBS, Functional Dyspepsia) presumption?
Active duty service during the Persian Gulf War in the Southwest Asia theater of operations, or in Afghanistan, Israel, Egypt, Turkey, Syria or Jordan: 38 USC § 1117(f) names all of them, and the theater itself is defined at 38 CFR § 3.317(e)(2) to include the Gulf of Aden, the Gulf of Oman, the Persian Gulf, the Arabian Sea, the Red Sea, the Iraq-Saudi neutral zone and the airspace above. Any period of service. There is no minimum severity and no time limit: Public Law 117-168 § 405 amended 38 USC § 1117(a)(1) in 2022 to reach a qualifying chronic disability that became manifest to ANY DEGREE AT ANY TIME. 38 CFR § 3.317(a)(1)(i) still carries the older 10 percent by December 31, 2026 language and has not been updated; the statute controls. The disability must still be a qualifying chronic disability under § 1117(a)(2). 38 CFR § 3.317(a)(2)(i)(B)(3) names functional gastrointestinal disorders as a medically unexplained chronic multisymptom illness, so the diagnosis is the qualifying route rather than a disqualification. Service era: Gulf War Era (August 2, 1990 – present). Service location: Southwest Asia theater of operations (Iraq, Kuwait, Saudi Arabia, the neutral zone between Iraq and Saudi Arabia, Bahrain, Qatar, the United Arab Emirates, Oman, the Gulf of Aden, the Gulf of Oman, the Persian Gulf, the Arabian Sea, the Red Sea, and the airspace above them, per 38 CFR § 3.317(e)(2)); or Afghanistan, Israel, Egypt, Turkey, Syria or Jordan, which 38 USC § 1117(f) adds.
What evidence is still needed for a Functional Gastrointestinal Disorders (IBS, Functional Dyspepsia) claim?
Gastroenterology or primary care records documenting IBS using Rome IV criteria (recurrent abdominal pain ≥1 day/week for 3+ months, associated with ≥2 of: defecation, change in stool frequency, change in stool form); colonoscopy or upper endoscopy ruling out IBD, celiac, or other structural causes; stool studies ruling out infectious etiology. A presumption removes the requirement to prove a medical link to service. A current diagnosis and qualifying service are still required, and VA decides the claim.
Is there a filing deadline for Functional Gastrointestinal Disorders (IBS, Functional Dyspepsia)?
No statutory filing deadline. Public Law 117-168 § 405 amended 38 USC § 1117(a)(1) in 2022 to reach a qualifying chronic disability that became manifest to any degree at any time. 38 CFR § 3.317(a)(1)(i) still reads 10 percent or more not later than December 31, 2026 and has not been updated to match; the statute controls
VeteranHQ publishes VA rules and the citations behind them. It does not prepare, file, or represent claims, and nothing here is legal advice or a prediction of what VA will decide.