IBS VA rating: DC 7319 and functional digestive disorders

Irritable bowel syndrome got a real rating formula in 2024, replacing the old "mild, moderate, severe" guesswork with a frequency test. It is also named in the Gulf War presumption, so Gulf War and Southwest Asia veterans can have it service connected with no nexus at all.

Last reviewed October 2026 · Not legal advice, VA.gov always controls

VA rates irritable bowel syndrome under diagnostic code 7319 at 10%, 20%, or 30%. The level depends on how often abdominal pain tied to bowel movements happened over the previous three months, at least once, at least three days a month, or at least one day a week, together with two or more listed bowel symptoms. Other functional digestive disorders can be rated under the same code (38 CFR § 4.114).

IBS is rated under diagnostic code 7319 in 38 CFR § 4.114. Until May 19, 2024 the code had three vague tiers, 0% for mild, 10% for moderate, and 30% for severe, and raters decided which word applied. The rewrite replaced that with criteria derived from the Rome IV clinical criteria for IBS, so the rating now depends on how often you have abdominal pain tied to bowel movements, plus a list of accompanying symptoms.

The current tiers

Every tier requires two or more of the following alongside the pain: a change in stool frequency, a change in stool form, altered passage (straining or urgency), mucus in the stool, abdominal bloating, or a feeling of distension. What separates the tiers is the pain frequency over the previous three months:

There is no 0% tier and no tier above 30%. A diagnosed case with pain and two accompanying symptoms at any frequency starts at 10%; weekly pain reaches the ceiling. The note under the code says it also covers other functional digestive disorders, dyspepsia, functional bloating, functional constipation, and functional diarrhea, which matters for Gulf War veterans, below.

The Gulf War presumption

For veterans who served in the Southwest Asia theater, which covers Iraq, Kuwait, Saudi Arabia, the neutral zone, Bahrain, Qatar, the UAE, Oman, the Gulf of Aden, the Gulf of Oman, the Persian Gulf, the Arabian Sea, the Red Sea, and the airspace above them, at any time since August 2, 1990, IBS falls within one of the named medically unexplained chronic multisymptom illnesses under 38 CFR § 3.317: functional gastrointestinal disorders, listed alongside chronic fatigue syndrome and fibromyalgia, with IBS named in the note as one of them. Section 405 of the PACT Act (August 10, 2022) also added Afghanistan, Israel, Egypt, Turkey, Syria, and Jordan to the statute behind the regulation, 38 U.S.C. § 1117(f). For those six countries, VA's list of recognized locations counts ground service but not the airspace above them.

What the presumption does: if you have qualifying service and a diagnosis of IBS or a functional gastrointestinal disorder, service connection is presumed. The printed text of § 3.317 still requires the condition to have appeared during service in the theater or to a degree of 10 percent or more by December 31, 2026, but the PACT Act rewrote § 1117(a)(1) so that a qualifying chronic disability counts if it "became manifest to any degree at any time." The statute controls, and VA's eligibility page already applies it, so there is no manifestation deadline. No in-service complaint, no nexus letter. You still have to prove the diagnosis and the severity, but the hardest element of most claims is simply gone. The presumptive conditions guide explains how presumptions work in general.

One subtlety: the presumption requires the condition to be "chronic," meaning it has existed for six months or more or has come and gone over a six-month period, and it must not be attributable to a known clinical diagnosis with a different cause. IBS qualifies precisely because it is a diagnosis of exclusion. If a GI workup finds Crohn's or celiac disease instead, those are rated under their own codes and need their own service connection.

Service connection outside the Gulf War presumption

For everyone else, IBS is claimed on the usual theories:

• Direct. In-service GI complaints are common, especially after deployments: "gastroenteritis," "diarrhea," "abdominal pain," a food-borne illness, antibiotics. A documented infectious episode in service followed by chronic symptoms is a recognized pattern (post-infectious IBS) that a nexus opinion can build on.
• Secondary to mental health. IBS can be claimed as secondary to PTSD, anxiety, or depression. VA's own Whole Health Library notes that IBS is often associated with all three, but the VA requires an opinion applying that association to you, not a citation.
• Secondary to medication. Under 38 CFR § 3.310, a disability caused by a service-connected condition is service connected, and when a service-connected condition makes another disability worse, the added severity is service connected. The same VA page notes that IBS is more common after disruptions to the gut such as medication use (antibiotics or steroids, for example). If long-term medication taken for a service-connected condition came before the bowel symptoms, a medical opinion can address whether it caused or aggravated the IBS.

See secondary conditions for what the opinion needs to say and the aggravation baseline rule.

Pyramiding and the other digestive codes

The 2024 schedule is explicit about which digestive codes are never added together. The instruction at the top of § 4.114 lists 7301 through 7329, 7331, 7342, 7345 through 7350, 7352, and 7355 through 7357, and 7319 is inside that list. When more than one of those codes applies, the rater assigns a single evaluation under the code that reflects the predominant disability picture, and raises it one level if the overall severity warrants. IBS alongside Crohn's disease (7326), a hiatal hernia (7346), or celiac disease (7355) therefore produces one rating, not two. GERD is diagnostic code 7206, outside the list, so IBS and GERD can both be rated; the GERD guide explains how that code changed. Even then, the general rule against pyramiding in 38 CFR § 4.14 bars rating the same symptom under both codes. When you file, describe what each condition does separately: reflux and swallowing for GERD, pain and bowel changes for IBS.

The exam

The intestinal conditions DBQ tracks the criteria closely: it asks about pain frequency related to defecation, and it has checkboxes for each of the six accompanying symptoms. Bring a log covering at least three months. Describe urgency honestly, including the practical consequences: the routes you plan around bathrooms, the meetings you have left, the mornings you could not leave the house. Functional impact is what the rating represents, even if the tier is set by frequency. Read Preparing for a C&P exam for the general approach.

The checklist

1. A diagnosis of IBS or a functional GI disorder, ideally after a workup that ruled out the alternatives.
2. A symptom log covering three months: each day with pain related to a bowel movement, and which accompanying symptoms were present.
3. For Southwest Asia veterans, or ground service in the six PACT Act countries: proof of qualifying service (DD-214, deployment orders) and a statement that the condition has lasted six months or more, or has come and gone over a six-month period.
4. For everyone else: in-service GI records, or a nexus opinion on a secondary theory.
5. A statement on daily-life impact: work, travel, diet, social limits.

Sources

• 38 CFR § 4.114, Schedule of ratings, digestive system, Diagnostic Code 7319 (irritable bowel syndrome). The 10, 20, and 30 percent criteria, the six accompanying symptoms, the note on functional digestive disorders, and the list of digestive codes that are never combined.
• 38 CFR § 3.317, Compensation for certain disabilities occurring in Persian Gulf veterans. Paragraphs (a) and (e): the presumption for functional gastrointestinal disorders, the six-month chronicity rule, and the countries and waters of the Southwest Asia theater.
• 38 U.S.C. § 1117, Compensation for disabilities occurring in Persian Gulf War veterans. The statute as amended by section 405 of the PACT Act (Pub. L. 117-168), which now covers a qualifying chronic disability that became manifest to any degree at any time and adds Afghanistan, Israel, Egypt, Turkey, Syria, and Jordan to the definition of a Persian Gulf veteran.
• VA.gov, Gulf War illnesses linked to Southwest Asia service. The recognized locations for service on or after August 2, 1990, including the six PACT Act countries with their airspace excluded, and VA's rule that the undiagnosed-illness presumption applies to a diagnosis at any time after separation once the veteran has been ill for at least 6 months.
• 38 CFR § 4.14, Avoidance of pyramiding. The general rule against rating the same symptom under two diagnoses.
• 38 CFR § 4.31, Zero percent evaluations. A 0% rating where a code lists no 0% level and the compensable criteria are not met, as with DC 7319.
• 89 FR 19735 (Mar. 20, 2024), Schedule for Rating Disabilities: The Digestive System, final rule. The rewrite effective May 19, 2024, the Rome IV basis for the IBS criteria, and VA's statement that 7200-series and 7300-series conditions can be rated separately.
• 87 FR 1522 (Jan. 11, 2022), Schedule for Rating Disabilities: The Digestive System, proposed rule. The old mild, moderate, and severe criteria for 7319 and why VA replaced them.
• VA Intestinal Conditions Disability Benefits Questionnaire, Section III. The exam form's pain-frequency choices and its checkboxes for the six accompanying symptoms.