A nexus letter is a document, typically prepared by a medical professional, that establishes a connection between a veteran’s current medical condition and their military service. This document aims to provide supporting evidence for a disability claim submitted to the Department of Veterans Affairs (VA). For example, a physician might state that a veteran’s arthritis is “at least as likely as not” caused by injuries sustained during active duty.
This type of letter plays a crucial role in the VA claims process by providing a medical opinion that strengthens the veteran’s case. The VA requires evidence to link a current disability to military service. The presence of this connection can significantly improve the chances of a successful claim, potentially leading to disability benefits and access to healthcare services. Historically, the burden of proof in these cases often rested heavily on the veteran, but a well-articulated medical opinion shifts some of that burden.