IBS Evaluation & Nexus Letter
Get an independent medical evaluation and expert nexus letter connecting your irritable bowel syndrome to your military service or service-connected conditions.
IBS & VA Disability Claims
Irritable bowel syndrome (IBS) is a functional gastrointestinal disorder that frequently affects veterans, with research demonstrating a strong connection between psychological stress, environmental exposures during military service, and the development of chronic gut dysfunction. The gut-brain axis — the bidirectional communication system between the central nervous system and the enteric nervous system — plays a central role in this relationship.
Veterans with PTSD, anxiety, and depression are significantly more likely to develop IBS due to the chronic activation of the stress response system. The sustained release of stress hormones disrupts normal gut motility, increases visceral sensitivity, and alters the gut microbiome. For Gulf War veterans, IBS is a recognized presumptive condition linked to environmental exposures during deployment.
Thorough documentation of IBS symptoms, including the frequency of episodes, alternating bowel habits, abdominal distress, and the condition's impact on daily activities, is essential for VA rating purposes. Our providers understand the specific criteria used to evaluate IBS and ensure your evaluation captures both the medical connection and the functional limitations.
Commonly Secondary To
- PTSD (Post-Traumatic Stress Disorder)
- Anxiety Disorders
- Depression
- Environmental Exposures (Gulf War)
- Chronic Stress from Service-Connected Conditions
VA Rating Scale
Frequently Asked Questions
GI Symptom & Service Documentation
Documented GI Symptoms Consistent with IBS
Records showing recurrent abdominal pain, altered bowel habits (diarrhea, constipation, or alternating), bloating, and symptom relief with defecation. Rome IV criteria require at least 3 months of symptoms with onset at least 6 months prior. A colonoscopy ruling out other pathology strengthens the diagnosis but is not always required.
Symptom Diary or Documented Symptom Frequency
Under the revised DC 7319 (effective May 19, 2024), VA ratings depend on how often abdominal pain related to defecation occurs over a three-month lookback period — at least once in three months for 10%, at least three days per month for 20%, or at least once per week for 30%. A symptom diary tracking pain frequency, stool changes, and associated symptoms (bloating, urgency, mucus) is often the difference between an underrating and an accurate rating.
Gulf War Service Documentation (if applicable)
For Gulf War veterans, IBS is a presumptive condition under 38 CFR § 3.317 as a 'medically unexplained chronic multisymptom illness.' Service in the Southwest Asia Theater of operations during qualifying periods is sufficient — no nexus required for the presumptive pathway. DD-214 and deployment records establish eligibility.
Records of Service-Connected Mental Health Conditions
For non-Gulf War veterans, the strongest secondary claim pathway is IBS secondary to PTSD, anxiety, or depression. Documentation of the primary mental health condition and any treatment records noting GI symptoms in the context of stress are valuable supporting evidence.
What's Included in Your IBS Evaluation
Medical Evaluation
Comprehensive telehealth evaluation assessing your IBS symptoms, bowel patterns, dietary triggers, and the relationship to your service-connected conditions.
Expert Nexus Letter
A detailed medical opinion establishing the gut-brain connection between your IBS and military service or service-connected conditions like PTSD.
Disability Benefits Questionnaire
A completed intestinal conditions DBQ documenting episode frequency, severity of disturbances, and the impact on your daily functioning and work capacity.
Three Simple Steps
Free Screening
Brief intake form so we can match you with the right provider.
Medical Evaluation
Telehealth visit with a board-certified provider licensed in your state.
Receive Documents
Evaluation report, Nexus letter, and DBQ delivered within 7 days.
Flat Fee Pricing
Veterans Keep 100% of Their Benefits — We Never Take a Percentage. One-time flat fee with no hidden costs.
Ask about pricing. We offer discounts and work with your budget.
Evaluation + DBQ
Medical records review and a completed Disability Benefits Questionnaire.
- Telehealth evaluation with licensed provider
- Medical records review
- Completed DBQ formatted for VA submission
Evaluation + DBQ + Nexus Letter
Medical records review, completed DBQ, plus a nexus letter connecting the condition to military service.
- Everything in the DBQ Service
- Expert nexus letter establishing service connection
- Detailed medical rationale using VA-standard language
Evaluation + Diagnostic Evaluation + DBQ + Nexus Letter
Medical records review, diagnostic evaluation for conditions not yet formally diagnosed, completed DBQ, and nexus letter.
*For veterans who do not yet have a formal diagnosis for this condition
- Everything in the Nexus Letter Service
- Diagnostic evaluation for veterans without a formal diagnosis
- Findings documented in nexus letter and DBQ
Ready to Get Started?
Important:
AIDE is not affiliated with, endorsed by, or connected to the Department of Veterans Affairs. We are an independent, veteran-owned medical evaluation service. Free claims assistance is available through accredited Veteran Service Organizations (VSOs). Our evaluations do not guarantee a specific VA rating or claim outcome. See our full Disclosures for more information.