Nexus Letter Sample PDF

What's inside this nexus letter sample PDF?

This sample nexus letter follows the standard format accepted by the Department of Veterans Affairs (VA) for disability claims. It shows a complete, realistic letter from a licensed physician establishing service connection:

• Physician credentials, specialty, and years of experience
• Veteran identification details — name, date of birth, last 4 SSN
• Medical opinion statement using "at least as likely as not" language
• Basis for opinion — service records reviewed, current examination date
• Clinical rationale connecting the service event to the current condition
• Reference to supporting medical literature or established clinical guidelines
• Physician signature block with license number and contact information

What is a nexus letter?

A nexus letter is a medical opinion letter written by a licensed physician that establishes a documented connection — a "nexus" — between a veteran's current medical condition and an event, injury, or exposure that occurred during their active military service. It is one of the most important supporting documents in a VA disability compensation claim.

The VA does not require certainty. The standard is "at least as likely as not" — meaning the physician believes there is a 51% or greater probability that the condition is related to military service. A well-written nexus letter clearly states this threshold, references the specific service records reviewed, and explains the medical reasoning in plain language.

Without a nexus letter, many VA disability claims are denied simply because the connection between service and condition is not formally documented, even when that connection is medically obvious. A strong nexus letter bridges that gap.

Key phrases every nexus letter must include

The VA looks for specific language when evaluating nexus letters. This sample nexus letter PDF demonstrates how to use each of these phrases correctly:

• "At least as likely as not" — the required probability threshold phrase; do not substitute "possibly" or "may be related"
• "Based on my review of service treatment records dated…" — establishes that the physician examined actual service documentation
• "In my professional medical opinion…" — identifies the statement as a clinical opinion, not a lay observation
• "The veteran's current diagnosis of [condition] is related to…" — directly names both the condition and the service event
• "This opinion is supported by medical literature including…" — citing peer-reviewed research strengthens the nexus significantly
• "I examined the veteran in person on [date]" — in-person examination adds credibility over record reviews alone

Common mistakes in nexus letters

Many nexus letters are rejected or given less weight by the VA because of avoidable errors. This sample nexus letter PDF is designed to avoid all of them:

• Vague language: Phrases like "could be related" or "might have contributed" do not meet the 51% threshold. The letter must say "at least as likely as not."
• Missing physician credentials: The letter must include the doctor's full name, license number, specialty, and years of experience to establish credibility.
• No service record references: A nexus letter that does not name specific service records or examination dates is easily challenged.
• Failure to name the condition: The exact diagnosed condition and the specific in-service event must both be named explicitly — general references are insufficient.
• No medical rationale: Simply saying the condition is related is not enough. The letter must explain the clinical or physiological mechanism connecting service to diagnosis.

Who can write a nexus letter for a VA claim?

The VA accepts nexus letters from licensed medical professionals. The most common and most effective sources are:

• Private physicians (MD or DO): The most common source. A private doctor who has treated the veteran and reviewed their service records carries strong credibility.
• Nurse practitioners and physician assistants: Accepted in many cases, particularly for straightforward conditions within their scope of practice.
• VA physicians: Can write nexus letters, but are less likely to do so proactively. Veterans must specifically request one.
• Independent medical examiners: Specialists who perform Compensation and Pension (C&P) exam-equivalent evaluations specifically for claims support.
• Telehealth nexus letter services: A growing category of services that connect veterans with physicians who specialize in writing VA nexus letters.

Frequently asked questions

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