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Secondary Conditions: How to File for Additional VA Disability

Secondary Conditions: How to File for Additional VA Disability

March 12, 2026
By J. Erickson
secondary conditions, additional claims, nexus letter, aggravation

"Already service-connected? You may qualify for secondary conditions. Learn what secondary claims are, common examples, and how to file."

━━━THE VETERAN'S TAKE━━━

What Is a Secondary Condition?

A secondary condition is a disability that was caused by, or made worse by, a condition you're already service-connected for. Under 38 CFR 3.310, the VA must grant service connection for secondary conditions if you can prove the link.

This is one of the most overlooked ways to increase your VA rating.

How Secondary Claims Work

To prove a secondary claim, you need to show:

  1. A current diagnosis of the secondary condition
  2. An already service-connected primary condition
  3. A medical nexus showing the secondary condition was caused OR aggravated by the primary condition

Common Secondary Condition Examples

Mental Health Secondaries

  • Depression or Anxiety secondary to chronic pain conditions
  • Sleep disorders secondary to PTSD or chronic pain

Musculoskeletal Secondaries

  • Opposite knee/hip condition secondary to favoring one leg
  • Back condition secondary to altered gait
  • Radiculopathy secondary to spine conditions

Other Common Secondaries

  • Hypertension secondary to PTSD, sleep apnea, or kidney disease
  • Erectile dysfunction secondary to medications or mental health conditions
  • GERD secondary to NSAIDs for pain

The Importance of a Nexus Letter

For secondary claims, a nexus letter is often essential. It should state that your secondary condition is "at least as likely as not" caused by or aggravated by your primary condition.

How to File a Secondary Claim

  1. Get diagnosed
  2. Get a nexus letter
  3. File VA Form 21-526EZ (check the secondary claim box)
  4. Identify the primary condition
  5. Submit your evidence

The Bottom Line

If you're already service-connected, look at what other conditions you have. Many veterans are living with secondary conditions they could be compensated for.

U.S. Air Force service dress uniform with Staff Sergeant rank insignia

About FWD Assist HQ

J. Erickson is a service-disabled Air Force veteran. He served as a military firefighter and as a veteran service officer, where he spent years walking veterans through the same claims process he writes about now. He holds an MBA and writes plain-language guides for veterans who want to understand the system without a translator. Learn more about the mission.

Educational Content Only: This article is for educational purposes only and does not constitute legal or professional claims advice. If you need help with your VA claim, start by contacting your local Veterans Service Organization (VSO) -- they're free, accredited, and can represent you through the entire process. If your situation requires more specialized support, consider consulting an accredited VA attorney or claims agent.

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