GERD as a Secondary VA Disability: How to Claim It Through PTSD Medication

A lot of veterans with service-connected PTSD are walking around with a stomach condition they never thought to claim. Gastroesophageal reflux disease — GERD — is one of the most common secondary conditions tied to PTSD treatment, and most vets have no idea they can get rated for it.

Under 38 CFR § 3.310, the VA must service-connect a disability that is proximately due to or the result of a service-connected condition. If your PTSD medication caused or aggravated your GERD, that is a textbook secondary claim.

Why PTSD Medications Cause GERD

The most commonly prescribed medications for PTSD are SSRIs like sertraline and paroxetine, and SNRIs like venlafaxine. These drugs are well-documented to cause gastrointestinal side effects, including nausea, acid reflux, and GERD. Prazosin — prescribed for PTSD-related nightmares — can also contribute to GI distress.

The mechanism is straightforward: serotonin plays a major role in gut motility and the function of the lower esophageal sphincter. When you alter serotonin levels with medication, you can disrupt that function and create the conditions for chronic acid reflux. If your VA provider documented GI complaints after starting PTSD medication, that is evidence you can use.

How the VA Rates GERD

GERD is rated under Diagnostic Code 7346 (hiatal hernia) in 38 CFR § 4.114. The rating levels are:

• 10% — Two or more of the following: epigastric distress, pyrosis, regurgitation, or substernal or arm or shoulder pain after meals or on exertion
• 30% — Persistently recurrent epigastric distress with dysphagia, pyrosis, and regurgitation, accompanied by substernal or arm or shoulder pain, productive of considerable impairment of health
• 60% — Symptoms of pain, vomiting, material weight loss and hematemesis or melena with moderate anemia; or other symptom combinations productive of severe impairment of health

Most veterans with medication-induced GERD will land at 10% or 30%. Even a 10% rating adds real money to your monthly compensation and stacks with your existing ratings through the VA combined rating formula.

Building Your Secondary Claim

To win a secondary service connection claim for GERD, you need three things: a current diagnosis, a service-connected primary condition (your PTSD), and a medical nexus linking the two. For a full breakdown of how secondary conditions claims work under 38 CFR 3.310, that resource covers the complete process.

Get the Diagnosis on Paper

If you have been dealing with acid reflux or heartburn, get it formally diagnosed. A VA primary care visit, a GI referral, or a private physician visit works. The diagnosis needs to be in your medical records — do not rely on self-reporting alone.

Document the Medication Connection

Pull your VA prescription records and look at when you started your PTSD medication. Then look at when your GI symptoms first appeared or worsened. If the timeline lines up, that is the foundation of your nexus argument. Your VA treatment records may already contain notes connecting your GI complaints to your medication. Request your complete records through the Blue Button portal — the VA is required to consider them under 38 CFR § 3.159(c).

Get a Nexus Letter

A nexus letter from a physician is the strongest piece of evidence you can submit. The letter should state that it is “at least as likely as not” that your GERD was caused or aggravated by your PTSD medication — that is the benefit of the doubt standard under 38 CFR § 3.102. The letter should reference the specific medications you take, their known GI side effects, and the timeline of your symptoms. The VA Secondary Claims Manual walks through the 38 CFR 3.310 framework and what examiners look for in a solid nexus opinion.

Filing the Claim

File using VA Form 21-526EZ. In the condition section, list “GERD secondary to PTSD medication” or “acid reflux secondary to service-connected PTSD.” Be specific about the secondary relationship — do not just list GERD as a standalone condition or the VA may treat it as a direct service connection claim, which is harder to prove.

Attach your nexus letter, your prescription records showing the PTSD medication, and any VA treatment notes documenting your GI symptoms. The more the paper trail connects the dots, the less room the VA has to deny.

What to Do If the VA Denies It

Denials on secondary claims often come down to an inadequate nexus or a C&P examiner who did not fully address the medication connection. If you get denied, read the rating decision carefully. The VA is required to explain why they rejected your evidence.

If the examiner's opinion was negative, counter it with a stronger private nexus letter that directly addresses the examiner's reasoning. A supplemental claim with new and relevant evidence — filed under the AMA framework — is your fastest path back in. For more on building the PTSD side of your claim and understanding how mental health ratings interact with secondary conditions, the VA PTSD Claims Playbook is a solid starting point.

Veterans with PTSD already carry enough. If the medication keeping your symptoms manageable is also tearing up your stomach, that is a service-connected problem. Claim it.