GERD and VA Disability Claims: What Veterans Need to Know About Nexus Letters

If you're a veteran dealing with chronic acid reflux and considering a VA disability claim, this guide is for you. We'll walk through how the VA evaluates GERD, when a nexus letter matters, what makes one effective, and how to get one — starting with the options that won't cost you a dime.

What Is GERD?

Gastroesophageal reflux disease (GERD) is a chronic condition where stomach acid repeatedly flows back into the esophagus. It goes beyond occasional heartburn. Veterans with GERD often deal with symptoms like persistent heartburn and chest burning, regurgitation of food or sour liquid, difficulty swallowing (dysphagia), chronic cough or hoarseness, disrupted sleep from nighttime reflux, and nausea or vomiting after meals.

Left untreated, GERD can lead to esophageal damage, Barrett's esophagus, strictures, and other serious complications. If these symptoms sound familiar and you served in the military, your service may be a contributing factor — and you may be entitled to VA disability compensation.

Why Is GERD So Common Among Veterans?

Military service creates conditions that are closely linked to GERD development. Understanding why this happens matters, because it's the foundation of any successful claim.

Stress and the Gut

Prolonged physiological stress — the kind you experience during deployments, combat, training exercises, and the general demands of military life — disrupts normal digestive function. Chronic activation of the stress response increases stomach acid production and weakens the lower esophageal sphincter (LES), the muscle that's supposed to keep acid in your stomach. The medical literature is clear on this: psychological stress is an independent risk factor for GERD.

Medications

Many veterans take NSAIDs (ibuprofen, naproxen) for service-connected pain — musculoskeletal injuries, headaches, joint problems. NSAIDs are well-documented to irritate the gastric lining and worsen reflux. The same applies to certain muscle relaxants, blood pressure medications, and psychiatric medications prescribed during or after service.

Lifestyle Factors During Service

Irregular meal schedules, eating MREs and field rations, limited access to fresh food, tobacco use, and high caffeine intake during service all contribute to the development of chronic reflux. These aren't personal choices made in a vacuum — they're conditions imposed by military life.

Connection to Mental Health Conditions

There is a well-established bidirectional relationship between GERD and mental health conditions like PTSD, anxiety, and depression. Stress worsens reflux, and chronic reflux symptoms worsen anxiety and sleep disruption, creating a cycle that many veterans experience firsthand.

How Does the VA Rate GERD?

Understanding the rating criteria is critical because it determines both whether you'll be compensated and how much you'll receive.

Current Rating System (Effective May 19, 2024)

As of May 2024, GERD has its own diagnostic code: DC 7206. Before this change, GERD was rated by analogy under DC 7346 (hiatal hernia). The new code rates GERD at 0%, 10%, 30%, 50%, or 80% based on symptom severity and functional impact.

The new criteria place significant emphasis on dysphagia (difficulty swallowing) and esophageal narrowing or stricture. This is a notable shift from the older criteria, which focused more on general symptom clusters like reflux, regurgitation, and chest pain.

Legacy Rating System (DC 7346 — Hiatal Hernia)

If your claim was filed before May 19, 2024, or if the older criteria would result in a more favorable rating, the VA is required to apply whichever standard benefits you more. Under DC 7346, the ratings were:

• 10% — Two or more symptoms from the 30% criteria but at a lesser severity. In practice, this often means you're on continuous medication (PPIs, H2 blockers) to manage daily symptoms.
• 30% — Persistently recurrent epigastric distress with dysphagia, pyrosis (heartburn), 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 (vomiting blood) or melena (blood in stool) with moderate anemia; or other symptom combinations productive of severe impairment of health.

What This Means for You

The key takeaway: the VA cannot deny a higher rating simply because your symptoms are controlled by medication. This was established in Jones v. Shinseki (2012), and it still applies. If your GERD requires daily medication and your symptoms would be significantly worse without it, that matters for your rating.

Also important: even a 0% rating has value. It establishes service connection, which opens the door to VA healthcare for GERD, future claims if your condition worsens, and secondary claims for related conditions.

Direct Service Connection vs. Secondary Service Connection

There are two main paths to getting GERD service-connected.

Direct Service Connection

This applies when your GERD started during or was caused by your military service. To establish direct service connection, you generally need a current diagnosis of GERD, evidence of an in-service event, injury, or condition that contributed to GERD development (this can include documented stress, medication use, dietary conditions, or toxic exposures), and a medical opinion linking the two.

If your service treatment records show complaints of heartburn, acid reflux, or GI issues during service, that strengthens a direct claim significantly. Even if you weren't formally diagnosed with GERD while serving, documented symptoms matter.

Secondary Service Connection

This is the more common path for GERD claims and where a nexus letter becomes especially important. Secondary service connection means your GERD was caused or aggravated by another condition that is already service-connected.

Common secondary connections include GERD secondary to PTSD or anxiety (stress-mediated acid production and LES dysfunction), GERD secondary to medications taken for service-connected conditions (NSAIDs for orthopedic injuries, psychiatric medications), GERD secondary to sleep apnea (CPAP use can increase abdominal pressure and worsen reflux), and GERD secondary to traumatic brain injury (TBI can disrupt autonomic regulation of the GI tract).

When Do You Need a Nexus Letter for GERD?

Not every GERD claim requires a nexus letter. Here's how to think about it:

You Probably Don't Need One If...

Your service treatment records clearly document GERD or persistent reflux symptoms during active duty, and you've had continuous treatment since separation. In cases where the service connection is obvious from the records, the VA may grant the claim based on existing evidence alone.

You Likely Need One If...

• You're filing a secondary claim (GERD caused by another service-connected condition)
• Your GERD was diagnosed after separation and you need to explain the connection to service
• Your C&P exam resulted in a negative opinion that you believe doesn't reflect your actual medical history
• Your claim was denied and you're appealing with supplemental evidence
• Your service treatment records are incomplete (common for combat deployments and older service eras)

In these situations, a nexus letter provides the medical reasoning that connects the dots for the VA rater — who is not a physician and cannot make medical inferences on their own.

What Makes a Strong GERD Nexus Letter?

Whether you get your nexus letter from your own doctor or an independent provider, these are the elements that determine whether it carries weight with the VA.

The Provider Reviews Your Records

A nexus opinion based solely on your verbal report is weaker than one where the provider reviewed your service treatment records, post-service medical records, medication history, and any prior C&P exam reports. The more thorough the review, the more credible the opinion.

It Uses the Right Language

The VA's evidentiary standard is "at least as likely as not," meaning a 50% or greater probability. A nexus letter should clearly state something to the effect of: "It is at least as likely as not that the veteran's GERD is caused by [or aggravated by] their service-connected [condition] / their military service."

Vague language like "could be related" or "might be connected" does not meet this standard and will likely be dismissed.

It Provides Medical Rationale

This is where many nexus letters fail. Simply stating a conclusion isn't enough. The letter needs to explain why — the physiological mechanism connecting the conditions, supported by the veteran's specific medical history and, ideally, references to relevant medical literature.

For GERD secondary to PTSD, for example, the rationale should explain how chronic stress response activation increases gastric acid secretion and impairs LES function, cite the veteran's documented PTSD symptoms and timeline of GERD development, and reference peer-reviewed studies supporting the PTSD-GERD relationship.

The Provider's Credentials Are Relevant

A nexus letter from a gastroenterologist or an internal medicine physician carries more weight for a GERD claim than one from an unrelated specialty. That said, any licensed physician (MD or DO), nurse practitioner, or physician assistant can write a nexus letter — what matters most is the quality of the rationale.

It Addresses Potential Counterarguments

The strongest nexus letters anticipate what a C&P examiner might say and address it proactively. If there's a gap in your medical records, the letter should explain it. If you have risk factors unrelated to service (like obesity or diet), the letter should acknowledge them and explain why service-related factors are the more likely cause.

How to Get a Nexus Letter for GERD

Option 1: Your Own Doctor (Start Here)

This is the best place to start, and we genuinely recommend it. If you have a primary care physician, gastroenterologist, or VA provider who knows you and has treated your GERD, ask them to write a nexus letter.

Here's why this is ideal: a provider who has examined you in person, reviewed your imaging and lab work, managed your medications, and observed your condition over time has firsthand clinical knowledge that an independent reviewer simply cannot replicate. Their opinion carries inherent credibility because it's grounded in an established doctor-patient relationship.

How to approach the conversation:

• Don't just ask for a "nexus letter" — many civilian doctors are unfamiliar with the term. Instead, explain that you need a medical opinion letter for a VA disability claim that states whether your GERD is related to your military service or a service-connected condition.
• Bring your service treatment records and a simple one-page summary of what you're asking for, including the "at least as likely as not" standard.
• Be prepared for the possibility that your doctor may decline — some providers aren't comfortable writing opinion letters for legal or administrative proceedings, and that's okay.
• Some doctors may charge a fee for this since it falls outside of a standard clinical visit. This is reasonable and normal.

Option 2: VA Healthcare Providers

If you receive care through the VA, your VA physician can provide a medical opinion. However, be aware that VA providers sometimes hesitate to write nexus letters, and C&P examiners — who conduct the VA's own evaluations — may reach a different conclusion. A nexus letter from your VA treating provider can still be submitted as evidence and carries weight, especially if it contradicts a C&P opinion and provides a more thorough rationale.

Option 3: Independent Medical Evaluation Providers

If your own doctor isn't able or willing to write a nexus letter, or if you need a more detailed independent medical opinion — especially for a secondary claim or an appeal — Independent Medical Evaluation services exist specifically for this purpose.

When choosing an independent provider, look for licensed physicians (MD/DO) or appropriately credentialed clinicians, providers who conduct a thorough records review (not just a questionnaire), evaluations that include a detailed written rationale rather than just a checkbox form, transparent pricing with no hidden fees, and providers licensed in your state.

Tips for Strengthening Your GERD Claim Overall

A nexus letter is one piece of the evidence picture. Here are other steps that can make a difference:

Document your symptoms consistently. Keep a log of your GERD episodes, medications, dietary restrictions, and how symptoms affect your daily life and work. This is powerful lay evidence.

Get a current diagnosis on paper. Make sure you have a formal GERD diagnosis in your medical records from a qualified provider, with any supporting diagnostic studies (endoscopy, barium swallow, pH monitoring) if available.

Obtain buddy statements. Fellow service members or family members who have witnessed your symptoms can submit lay statements supporting your claim.

Request your complete service treatment records. Don't assume the VA has everything. Obtain your own copies and review them for any documented GI complaints, even if they weren't labeled as GERD at the time.

If you're filing secondary, connect the timeline. Show that your GERD developed or worsened after the onset of your primary service-connected condition or after starting a medication for that condition.

GERD and Related Secondary Conditions

If you're already service-connected for GERD, be aware that it can serve as a basis for additional secondary claims. Conditions commonly secondary to GERD include sleep disturbances and insomnia (nighttime reflux is a well-documented cause of poor sleep), esophageal stricture or Barrett's esophagus (long-term complications of uncontrolled GERD), dental erosion (stomach acid damaging tooth enamel), chronic laryngitis or vocal cord dysfunction, depression or anxiety related to chronic pain and dietary limitations, and asthma or respiratory issues aggravated by acid aspiration.

Don't leave compensation on the table. If GERD has caused or worsened other health problems, those conditions may be ratable as well.