IBS & irritable bowel

Irritable bowel syndrome (IBS) is a digestive condition the VA treats as a "functional" disorder, meaning it causes real, ongoing belly symptoms that are not explained by structural damage you can see on a scope or scan. The VA has a specific spot for it in its rating book at 38 CFR 4.114, under diagnostic code 7319, titled "Irritable bowel syndrome (IBS)." That code can also cover certain other functional digestive problems like dyspepsia, functional bloating, constipation, and diarrhea. To get service connection in the normal way, the rules generally look for a current diagnosis, an in-service event or illness, and a link ("nexus") between the two.

Under the current rules, IBS (DC 7319) is rated at three levels: 10%, 20%, or 30%, with 30% being the top schedular level for this code. What moves the rating up is how often you have abdominal pain related to having a bowel movement, plus other symptoms. The 30% level applies when there is abdominal pain related to defecation at least one day per week over the previous three months, along with two or more of these: a change in how often you go, a change in stool form, altered stool passage (straining and/or urgency), mucus in the stool (mucorrhea), abdominal bloating, or a feeling of distension. The 20% level uses the same symptom list but with pain on at least three days per month, and the 10% level uses pain at least once during the previous three months. So in general, more frequent pain tied to bowel movements, paired with those listed symptoms, points toward a higher percentage.

There is also a special exposure pathway. For Persian Gulf War veterans, the VA recognizes functional gastrointestinal disorders — which expressly include irritable bowel syndrome — as a "medically unexplained chronic multisymptom illness" under 38 CFR 3.317. For a qualifying veteran, this presumptive pathway can pay compensation when the condition became manifest during qualifying service or to a degree of 10 percent or more by December 31, 2026, without the veteran having to separately prove the usual nexus link. This is one way the rules can lift the burden of showing a direct connection for those who served in the Southwest Asia theater of operations. If a claim is denied, that is a starting point with appeal options, not the end of the road.

This is educational information about how the VA's rules generally work, not legal advice or a VA decision about your individual claim.