What Is a Nexus Letter and Do You Need One for Your VA Claim?

If you are filing a VA disability claim or appealing a denial, you have probably heard the term nexus letter. Understanding what it is and why it matters could be the difference between an approved claim and another denial.

What Is a Nexus Letter?

A nexus letter is a written medical opinion that explains the connection between your current medical condition and your military service. The word nexus means link or connection. The VA requires evidence of three things to approve a disability claim: a current diagnosis, an in-service event or injury, and a medical opinion linking the two. The nexus letter provides that third element, the critical medical link the VA needs to approve your claim.

Without a nexus letter, the VA relies on its own examiners to determine whether your condition is service connected. Those examiners do not always support the veteran. An independent nexus letter gives you a medical opinion you control, written specifically to meet VA standards.

What Does a Nexus Letter Say?

A well-written nexus letter does several things. It identifies your current diagnosis. It references specific events or exposures from your military service record. It applies the VA legal standard, which is "at least as likely as not" that your condition is related to your service. And it cites the medical evidence and reasoning behind that conclusion.

The quality and detail of the opinion matters far more than the credential of the provider. The VA reviews the medical reasoning, not just the title of the person who signed it.

Who Can Write a Nexus Letter?

Any licensed medical professional can write a nexus letter within their scope of practice. This includes physicians, nurse practitioners, and physician assistants. A PA-C, or Physician Assistant Certified, is fully qualified to provide independent medical opinions for VA disability claims. Nexus letters from a PA-C are accepted by the VA.

Do You Need a Nexus Letter?

Not every claim requires one. If your condition was documented during service and the connection is straightforward, the VA may approve your claim without one. However, if your claim involves a condition that developed after service, a condition with a delayed onset, or a claim that has already been denied, an independent nexus letter significantly strengthens your case.

Veterans who have received a denial citing insufficient evidence of service connection are strong candidates for a nexus letter on appeal.

What Conditions Can a Nexus Letter Support?

Nexus letters are commonly written for PTSD, traumatic brain injury, sleep apnea, orthopedic injuries, hearing loss, tinnitus, skin conditions, and many other diagnoses. If your condition has a plausible connection to your military service, a nexus letter may be appropriate for your claim.

How Frontline MedReview Can Help

At Frontline MedReview, our licensed PA-C reviews your complete military and civilian medical records and writes independent, evidence-based nexus letters for VA disability claims. We serve veterans nationwide, fully remote, with no representation fees and no percentage of your back pay.

We only write opinions we can medically support. If we cannot support your claim, we will tell you honestly before any work begins.

Contact us to get started or visit our Services page to learn more about what we do.