GERD and IBS: How Digestive Conditions Get Service-Connected

If you've ever come off a deployment with a stomach that hasn't been the same since — burning reflux at 2 a.m., unpredictable trips to the bathroom, a diet that keeps shrinking because everything sets you off — you're not imagining it. Digestive conditions are among the most common problems veterans deal with after service, and they're also some of the most misunderstood when it comes to VA disability claims.

GERD (gastroesophageal reflux disease) and IBS (irritable bowel syndrome) are the two big ones. Both are service-connectable. Both are often tied to conditions veterans already have rated. And both get denied at higher rates than they should — usually because the claim wasn't built the right way from the start.

Here's what actually works.

Why Digestive Conditions Are So Common in Veterans

Military service is rough on the gut. Long hours, MREs, irregular meal schedules, contaminated water, burn pit exposure, deployment stress, NSAIDs handed out like candy for orthopedic pain — all of it stacks up. Add in the mental health toll of service, and the gut-brain connection kicks in hard. PTSD, anxiety, and depression are strongly linked to both GERD and IBS in the medical literature.

That last point matters more than most veterans realize. If you're already service-connected for a mental health condition, your digestive issues might be secondary to it — and that's often the strongest pathway to a rating.

The Three Pathways to Service Connection

There are three main ways to get GERD or IBS service-connected. Understanding which one fits your situation is the difference between a clean grant and a frustrating denial.

1. Direct Service Connection

Direct service connection means the condition started in service and continued after. Under 38 CFR § 3.303, you need three things: a current diagnosis, an in-service event or symptoms, and a medical nexus linking the two.

For GERD, this usually looks like documented complaints of heartburn, indigestion, or acid reflux in your service treatment records — even if the doctor just called it "dyspepsia" or handed you a bottle of antacids without a formal diagnosis. For IBS, look for entries about diarrhea, constipation, abdominal cramping, or unexplained GI symptoms during service.

The key is continuity. If you had symptoms in service and can show they never really went away, you have a direct claim. If you didn't get a formal diagnosis until years later, that's fine — many GI conditions take time to get properly worked up.

2. Secondary Service Connection

This is the pathway most veterans miss, and it's often the strongest one. Under 38 CFR § 3.310, a condition that's caused OR aggravated by an already service-connected disability can itself be service-connected.

Common secondary pathways for GERD and IBS:

• PTSD, anxiety, or depression → GERD or IBS. The gut-brain link is well established in medical literature. Stress hormones affect gut motility and stomach acid production. This is one of the most successful secondary pathways.
• Chronic NSAID use for a service-connected orthopedic condition → GERD. If you're taking ibuprofen or naproxen daily for a service-connected back, knee, or shoulder, that medication use is a well-established cause of peptic ulcer disease and gastritis, and studies show NSAID users report reflux symptoms significantly more often than non-users. Get the pharmacy records.
• Sleep apnea → GERD. There's a documented bidirectional relationship. Nighttime reflux and obstructive sleep apnea feed each other.
• Medication side effects generally. Almost any long-term prescription for a service-connected condition can contribute to GI problems.

Secondary claims still need a nexus opinion. The opinion has to explain the causal mechanism — not just note that both conditions exist. That's where a lot of secondary claims fall apart. At Augustus Miles, our VA-accredited attorneys see this pattern constantly: a veteran files secondary, VA orders an exam, the examiner writes a two-sentence opinion saying "less likely than not," and the claim gets denied. A properly developed nexus opinion is the fix.

3. Presumptive Service Connection (Gulf War and PACT Act)

Gulf War veterans have a specific presumptive pathway for GI conditions under 38 CFR § 3.317. Functional gastrointestinal disorders — including IBS, functional dyspepsia, functional constipation, and functional diarrhea — are presumptively service-connected for veterans who served in the Southwest Asia theater of operations or in Afghanistan.

A few things worth knowing here. First, the original regulation had a December 31, 2026 deadline for symptom manifestation and a 10% minimum severity threshold. The PACT Act removed both of those in 2022 — the underlying statute now says the presumption applies "any time" and "to any degree." The regulatory text at § 3.317 hasn't fully caught up yet, but the statute controls. If a VA rater or examiner tells you otherwise, they're working from stale rules.

Second, the presumption covers functional GI disorders specifically. Structural conditions (like GERD caused by a hiatal hernia) generally aren't presumptive under this pathway — they'd need direct or secondary service connection instead.

Evidence That Actually Moves the Needle

GI conditions are inherently subjective. There's no X-ray for IBS, and GERD often looks normal on imaging even when symptoms are severe. That means the evidence has to do a lot of work.

Get the diagnosis in writing. A gastroenterologist's note is worth more than a primary care mention. If you haven't had an endoscopy, colonoscopy, or GI workup, ask for one. Documentation of GERD often comes with an EGD showing esophagitis or Barrett's. IBS is typically a diagnosis of exclusion — meaning other conditions have to be ruled out first.

Keep a symptom journal. Frequency of episodes, severity, foods that trigger, medications you're on, days of work missed. VA raters and examiners take contemporaneous records seriously.

Get lay statements. Your spouse, coworkers, or battle buddies can describe what they've watched you go through — the bathroom trips, the dietary restrictions, the sleep disruption from nighttime reflux. Lay evidence is competent for symptoms observable to non-medical people, per 38 CFR § 3.159.

Line up the nexus opinion. For secondary claims especially, a private medical opinion from a doctor who understands VA nexus language ("at least as likely as not") is often what separates a grant from a denial. Under 38 CFR § 3.102, once the evidence is in equipoise — 50/50 — VA resolves the doubt in your favor.

How VA Rates GERD and IBS

Both conditions are rated under the digestive system schedule in 38 CFR § 4.114.

GERD has had its own diagnostic code since May 19, 2024: DC 7206. The ratings run 0%, 10%, 30%, 50%, or 80%, and the criteria are built around documented esophageal stricture causing difficulty swallowing — how often you need the esophagus dilated, whether you need a stent or surgery, and whether you have complications like aspiration, undernutrition, or substantial weight loss. One nuance worth knowing: the 10% tier is for a documented stricture that requires daily medication to control, otherwise asymptomatic — so if you're on daily acid-suppression therapy, document that clearly. But a documented stricture is required at every compensable tier, and the regulation wants it confirmed by barium swallow, CT, or endoscopy. Reflux symptoms alone, with no documented stricture, generally won't reach a compensable rating under the current criteria. That's a real change from the old rules, so make sure your evidence speaks to stricture, dilation history, and swallowing.

IBS is rated under DC 7319 at 10%, 20%, or 30% (0% applies when you don't meet the criteria for a compensable rating). The current criteria are built on abdominal pain related to defecation, plus at least two associated features — change in stool frequency, change in stool form, straining or urgency, mucus, bloating, or distension. What moves you up the tiers is how often the pain occurs: at least once in the previous three months for 10%, at least three days a month for 20%, and at least one day a week for 30%. A well-documented symptom journal is worth its weight in gold at this rating stage.

One important note on stacking: pyramiding rules under 38 CFR § 4.14 mean you generally can't get separate ratings for overlapping symptoms in the same body system. But distinct manifestations can be rated separately. § 4.114 bars many digestive codes — including IBS at DC 7319 — from being combined with each other at all; where two of those apply, VA assigns one rating for the predominant disability picture. GERD's DC 7206 sits outside that non-combination list, so a separate GERD rating alongside IBS is generally available when the evidence supports both. Augustus Miles handles this analysis every day when we build claims.

What to Do If You've Already Been Denied

Denials on GI claims are common, and they're often fixable. The three AMA review lanes give you options:

• Supplemental Claim (§ 3.2501) if you have new and relevant evidence — a new nexus opinion, updated medical records, a symptom journal you didn't have before.
• Higher-Level Review (§ 3.2601) if you think VA got the existing evidence wrong. No new evidence allowed here; it's a senior reviewer looking at what's already in the file.
• Board Appeal (§ 20.202) for a Veterans Law Judge to review the decision.

File within one year of the decision notice to preserve your original effective date under § 3.2500(h). Miss that window and you can still refile, but you'll get a new effective date and lose potential back pay.

The Bottom Line

GERD and IBS are real service-connected disabilities that affect quality of life every single day. They're also winnable claims when built correctly — with the right pathway identified, the right nexus opinion, and evidence that tells the full story.

If you've been denied, or you're not sure which pathway fits your situation, Augustus Miles can help. Our VA-accredited attorneys work on a contingency basis — no upfront cost, you only pay if your claim succeeds. Our support team is made up of veterans who've been through the process themselves, so you're not going to get a call center reading from a script.

Rating criteria and thresholds change — check va.gov for the current digestive system schedule.

Frequently Asked Questions

Can I get GERD service-connected if it wasn't diagnosed until after I left service?

Yes. Many GI conditions take years to get properly worked up, and a delayed formal diagnosis doesn't kill a claim. What matters is whether you can show symptoms started in service (even if they were called "heartburn" or "indigestion" at the time) and continued after, or whether the condition is secondary to something already service-connected.

Is IBS automatically service-connected for Gulf War veterans?

IBS is a presumptive condition under 38 CFR § 3.317 for veterans who served in the Southwest Asia theater or Afghanistan. The PACT Act removed the old December 2026 deadline and the 10% severity threshold, so the presumption applies any time and to any degree. You still need a current diagnosis and qualifying service, but you don't need to prove a nexus.

Can I get GERD service-connected as secondary to PTSD?

Yes, and it's one of the more common secondary pathways. The gut-brain link between mental health conditions and GERD is well documented in medical literature. The claim needs a nexus opinion explaining the causal mechanism — a doctor stating that your PTSD at least as likely as not caused or aggravated your GERD.

Can I get separate ratings for both GERD and IBS?

Often yes. Pyramiding rules under 38 CFR § 4.14 prevent rating the same symptoms twice, but GERD and IBS involve different organs and different symptoms. VA can and often does rate them separately when the medical evidence supports distinct manifestations.

What's the highest rating I can get for GERD or IBS?

GERD is rated under its own diagnostic code, 7206, which tops out at 80%. The high ratings turn on documented esophageal stricture causing difficulty swallowing, plus factors like repeat dilations, stent placement, surgical correction, or complications such as aspiration or substantial weight loss. IBS under diagnostic code 7319 tops out at 30%, which requires abdominal pain related to defecation at least one day a week over the previous three months plus at least two associated bowel symptoms. Both ratings depend heavily on well-documented symptom severity and frequency.