GERD as a Secondary Condition to PTSD Medication: How to File and Win

A lot of veterans are walking around with a PTSD rating and a prescription for SSRIs, SNRIs, or prazosin — and they have no idea that the stomach problems those drugs cause can be a separate, ratable VA disability. If your doctor put you on medication for PTSD and you developed gastroesophageal reflux disease (GERD), chronic gastritis, or peptic ulcer disease, you have a legitimate secondary service connection claim under 38 CFR § 3.310.

This is not a gray area. The VA rates GERD under Diagnostic Code 7346 (hiatal hernia, which covers GERD symptomatically) or DC 7307 (chronic gastritis), depending on your diagnosis. Ratings range from 10 to 60 percent based on symptom severity. That is real money on the table, and most veterans never file for it.

Why PTSD Medication Causes GERD

SSRIs like sertraline and fluoxetine are first-line treatments for PTSD under VA clinical guidelines. They increase serotonin availability — but serotonin receptors also exist throughout the gastrointestinal tract. The result for many veterans is acid reflux, esophageal irritation, and chronic GERD. Prazosin, used for PTSD nightmares, can relax the lower esophageal sphincter and directly worsen reflux. If your VA records show a PTSD diagnosis, a prescription for one of these medications, and a subsequent GERD diagnosis, you already have the foundation of a secondary claim.

The Legal Framework: 38 CFR § 3.310

Under 38 CFR § 3.310(a), a disability that is proximately due to or the result of a service-connected disease or injury is itself service-connected. The regulation was amended in 2006 to explicitly include disabilities caused by the treatment of a service-connected condition — not just the condition itself. That amendment is the key to your GERD claim.

Your PTSD is service-connected. Your doctor prescribed medication to treat that PTSD. That medication caused or aggravated your GERD. Under the plain language of 38 CFR § 3.310, that GERD is service-connected as a secondary condition. The VA cannot deny this on legal grounds if you have the evidence to support it. For a deeper breakdown of how secondary claims work, the VA Secondary Claims Manual covers the full regulatory framework and common denial patterns.

What Evidence You Need

Secondary claims live or die on the nexus — the documented medical link between your service-connected condition (or its treatment) and the secondary disability. Here is what you need to build a solid file:

• VA treatment records showing your PTSD diagnosis and medication history. Pull your complete VA medical records. You want documentation of when the SSRI, SNRI, or other medication was prescribed and for what purpose.
• A GERD or gastritis diagnosis. This can come from VA healthcare or a private provider. Endoscopy results, imaging, or a physician’s clinical diagnosis all work. The diagnosis needs to be in writing.
• A nexus letter from a qualified medical provider. This is the most important piece. The letter must state, at minimum, that it is “at least as likely as not” that your GERD was caused or aggravated by your PTSD medication. A private physician or gastroenterologist familiar with the pharmacological side effects can write this.
• A personal statement (VA Form 21-4138 or equivalent). Describe when your GI symptoms started, how they correlate with starting your PTSD medication, and how they affect your daily life. This is lay evidence and it counts under 38 CFR § 3.303.

If you are unsure how to get a nexus letter or what it needs to say, the VA PTSD Claims Playbook walks through the evidence requirements for PTSD-linked secondary conditions in detail.

How the VA Rates GERD

The VA does not have a specific diagnostic code for GERD by name. Raters typically apply DC 7346 (hiatal hernia) by analogy, or DC 7307 (chronic gastritis). Under DC 7346, the rating criteria are:

• 60 percent: Symptoms of pain, vomiting, material weight loss, and hematemesis or melena with moderate anemia; or other symptom combinations productive of severe impairment of health.
• 30 percent: Persistently recurrent epigastric distress with dysphagia, pyrosis, and regurgitation, accompanied by substernal or arm or shoulder pain, productive of considerable impairment of health.
• 10 percent: With two or more of the symptoms for the 30 percent evaluation of less severity.

Most veterans with medication-induced GERD land at 10 or 30 percent. That may not sound like much, but combined with your existing ratings, it moves the needle on your overall combined rating — and it is a condition you are already living with and treating.

Filing the Claim

File on VA Form 21-526EZ. In the condition description, write something like: “GERD, secondary to PTSD (service-connected) and treatment with [medication name].” Be specific. Attach your nexus letter, relevant medical records, and your personal statement at the time of filing — do not wait for the VA to request them.

If you already have a PTSD rating and have been treated at VA, the VA has a duty under 38 CFR § 3.159(c) to obtain your VA treatment records. But do not rely on that. Pull your own records through MyHealtheVet or submit a records request, and include them with your claim. The VA loses records. You should not pay for that.

GERD as a secondary condition is one of the most commonly missed claims in the system. Veterans take PTSD medication for years, develop chronic GI problems, and never connect the dots. Now you have. File the claim, get the nexus letter, and get rated for what you are already dealing with.