
What Is a Nexus Letter and Why It Could Make or Break Your VA Disability Claim
Many veterans file a VA disability claim, wait months for a decision, and then receive a denial citing a single phrase: “no nexus established.” The condition is real. The service history is documented. But without a nexus letter, a formal medical opinion connecting a veteran’s current diagnosis to their military service, the VA has no basis to approve the claim. That gap alone has cost thousands of veterans the benefits they earned. A nexus letter is not a formality. For many claims, it is the central piece of evidence the VA needs to make a favorable decision. Understanding what it












