Plain-language definitions grounded in the clinical and regulatory literature.
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Treatment
What it isService connection is the legal determination by the VA that a veteran’s current medical condition was incurred during, caused by, or aggravated by their military service. A service-connected condition is eligible for VA disability compensation and healthcare priority.
Why it mattersService connection is the gateway to VA disability benefits. A veteran with an uncompensated sleep disorder that is service-connected may be eligible for 0-100% disability rating, free VA healthcare, and priority access to specialized treatment. Many veterans with service-related sleep disorders never file because they don’t know the pathway exists.
Think of it like thisService connection is the VA’s formal acknowledgment that the military made a withdrawal from your health account. It opens the account to claim reimbursement.
Under 38 U.S.C. § 1110 and 38 CFR § 3.303, service connection requires: (1) a current diagnosis of a disability; (2) in-service incurrence or aggravation of the disease or injury; and (3) a nexus between the current disability and the in-service disease or injury. Secondary service connection under 38 CFR § 3.310 allows connection through a pre-existing service-connected condition that caused or aggravated the claimed condition.
Sleep disorders, PTSD, and the invisible wounds of service can feel isolating. If you or someone you know is in crisis or experiencing thoughts of self-harm, help is available right now. The Veterans Crisis Line provides free, confidential support 24 hours a day, 7 days a week to veterans, service members, and their families.
If you are in crisis or experiencing thoughts of self-harm, call the Veterans Crisis Line at