Diagnostic Code 7319 · 38 CFR §4.114
Irritable bowel syndrome (IBS) is a functional gastrointestinal disorder characterized by chronic abdominal discomfort and altered bowel habits. It is rated under DC 7319 as "irritable colon syndrome." IBS is common among veterans, particularly those who served in Southwest Asia (where it may qualify as a Gulf War presumptive condition) and those with service-connected PTSD or anxiety disorders. The gut-brain connection is well established in medical literature, making IBS a strong secondary claim to mental health conditions.
| Rating | Criteria |
|---|---|
| 0% | Mild disturbances of bowel function with occasional episodes of abdominal distress. |
| 10% | Moderate disturbance: frequent episodes of bowel disturbance with abdominal distress. |
| 30% | Severe disturbance: diarrhea, or alternating diarrhea and constipation, with more or less constant abdominal distress. This is the maximum schedular rating for DC 7319. |
You need: (1) a current diagnosis of IBS from a gastroenterologist or primary care provider, (2) a nexus to service (direct, secondary, or presumptive for Gulf War veterans), and (3) documentation of frequency and severity of episodes. A symptom journal is particularly valuable — document how many days per week you experience symptoms, the nature of your bowel disturbance, and how it affects your daily activities and work. If claiming as a Gulf War presumptive condition, you need evidence of service in Southwest Asia and a qualifying diagnosis. If claiming secondary to PTSD or anxiety, a nexus letter is recommended.
Yes. IBS is recognized as a functional gastrointestinal disorder that can qualify for presumptive service connection for veterans who served in Southwest Asia under 38 CFR 3.317. It falls under the category of medically unexplained chronic multi-symptom illnesses.
The maximum schedular rating for IBS under DC 7319 is 30%, which requires severe symptoms including diarrhea or alternating diarrhea and constipation with more or less constant abdominal distress.
Yes. The medical connection between stress, anxiety, and gastrointestinal function is well established. IBS is a common secondary claim to PTSD and other anxiety-related conditions. A nexus letter explaining the gut-brain connection strengthens this claim.