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How to file a VA disability claim for Low Back Pain as a secondary condition to your service-connected Plantar Fasciitis. This guide covers the medical nexus, evidence requirements, and how a secondary claim can increase your combined rating.
This is not legal or medical advice. Always consult with a VSO or accredited claims agent.
NEXUS STRENGTH
strong
COMMONLY GRANTED
Yes
CLAIM TYPE
Secondary
A secondary condition is a disability that was caused or aggravated by a service-connected condition. Under 38 CFR § 3.310, the VA will grant service connection for a secondary condition if you can show a medical relationship (nexus) between your already service-connected condition and the new condition.
In this case, you would claim that your service-connected Plantar Fasciitis caused or worsened your Low Back Pain.
Secondary claims are one of the most effective ways to increase your combined VA disability rating and monthly compensation.
Common symptoms:
Common symptoms:
Get a medical opinion letter from a doctor stating that your Low Back Pain is "at least as likely as not" caused by or aggravated by your service-connected Plantar Fasciitis. This is the most critical piece of evidence for a secondary claim.
Medical records showing a current diagnosis of Low Back Pain. VA treatment records, private medical records, or a current exam will work.
You must already have Plantar Fasciitis rated as service-connected. If not, file for that first or file both claims simultaneously.
A detailed statement (VA Form 21-4138) describing how your Plantar Fasciitis symptoms led to or worsened your Low Back Pain. Include specific examples of how both conditions affect your daily life.
If granted, Low Back Pain as a secondary condition will increase your combined VA disability rating using VA math. Here are 2026 monthly rates by rating:
30% Rating
$552.47
/month
50% Rating
$1,132.90
/month
70% Rating
$1,808.45
/month
Use our free Claims Builder to organize your Low Back Pain evidence, link it to your Plantar Fasciitis claim, and prepare for your C&P exam.