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    Veterans Law

    How Do I Get a Nexus Letter for Sleep Apnea?

    Michael Lostritto

    April 10, 2024

    Updated: December 16, 2025

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      How Do I Get a Nexus Letter for Sleep Apnea?

      CCK Law: Our Vital Role in Veterans Law

      Sleep apnea is a common diagnosis among veterans, but it is still a challenging claim to make for VA disability benefits. VA rejects approximately a third of disability claims in general, and even those it approves may leave a veteran with a rating lower than they would like, which can further delay benefits and tie the process up in lengthy appeals.

      Additionally, many cases of sleep apnea and other sleep disorders are a secondary disability—for example, caused by post-traumatic stress disorder (PTSD), rather than a direct result of an in-service event—making them even more complicated to prove.

      To support their disability claim, veterans should consider acquiring a nexus letter for their sleep apnea. Nexus letters are medical opinions written by doctors and other licensed providers that draw a direct connection between a veteran’s sleep apnea and their military service. These letters can go a long way toward easing the claims process by making it clear to VA that a veteran’s condition is service connected, and therefore deserving of compensation.

      Independent Medical Opinion: VA Nexus Letter

      The Process for Obtaining a Nexus Letter

      To obtain a nexus letter for sleep apnea, follow these steps:

      1. Find a Licensed Provider: VA only accepts nexus letters written by licensed providers. Unlike C&P exams, VA will not identify a medical professional or set up an appointment for a nexus letter. It is the veteran’s responsibility to find a VA or VA-contracted physician or private physician who is qualified to evaluate their condition.
      2. Gather Evidence: According to VA in 2024, sleep studies are an effective way to diagnose and prove conditions like sleep apnea, and will likely be one of the first tests a veteran’s physician will have them undergo. The physician will also need to see the veteran’s medical and service history. The veteran should collect and attach relevant documents such as any earlier VA decisions, prior sleep studies, and evidence about how their condition is service-related.
      3. Ensure a Quality Nexus Letter: The physician’s letter should state that, in the provider’s professional opinion, the veteran’s sleep apnea is caused by an in-service event, injury, or illness. A good nexus letter usually includes the doctor’s credentials, a nexus opinion, an evidence-based rationale, and an explanation of the impact on the veteran’s life. A physician experienced in writing nexus letters will be able to include the keywords that VA considers most persuasive. For example, it is vital a physician state that your condition is “at least as likely as not” related to military service to satisfy VA’s standard of proof.

      While a nexus letter is not mandatory for VA claims related to sleep apnea, having one can significantly strengthen a VA benefits claim by providing medical evidence linking the sleep apnea to military service.

      Asking for Help with Nexus Letters

      When preparing an initial claim for disability benefits, veterans will typically start with a VA-accredited Veterans Service Organization (VSO) like Disabled American Veterans (DAV).

      If VA denies your claim for sleep apnea disability benefits, it is time to reach out to an experienced, VA-accredited law firm like Chisholm Chisholm & Kilpatrick.

      CCK is the largest veterans law firm in the US and has helped veterans recover $1 billion in benefits since 1999. Contact CCK for a free case evaluation at (800) 544-9144. Do not delay, as there are deadlines to consider when pursuing appeals.

      About the Author

      Bio photo of Michael Lostritto

      Michael joined CCK in September of 2016 as an Attorney, was named Supervising Attorney in 2021, and now serves as a Managing Attorney. His practice focuses on the representation of disabled veterans before the Department of Veterans Affairs and the United States Court of Appeals for Veterans Claims.

      See more about Michael