Secondary Condition Claim · VASRD 5271
A condition caused or aggravated by an already service-connected disability can be granted its own service connection as a secondary condition under 38 CFR § 3.310. Here's how that works for Ankle, Limitation of Motion when it develops after Deep Peroneal Nerve Paralysis.
Weakness reduces control
Primary condition · VASRD 8523
Deep Peroneal Nerve Paralysis
The deep peroneal nerve controls the muscles that lift the foot and toes upward (dorsiflexion), and damage to it causes weakness or paralysis distinct from the more commonly discussed external popliteal (common peroneal) nerve. Because these nerve branches are frequently confused in medical records, clearly identifying the deep branch specifically matters for this claim.
Secondary condition · VASRD 5271
Ankle, Limitation of Motion
Reduced ability to flex or extend the ankle, usually due to injury or arthritis.
The VA rates Ankle, Limitation of Motion the same way whether it's claimed directly or as secondary to Deep Peroneal Nerve Paralysis — severity of Ankle, Limitation of Motion itself determines the percentage.
Example combined rating
20% Deep Peroneal Nerve Paralysis + 10% Ankle, Limitation of Motion = 28%
The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 20% and 10% combine to 28%, not 30%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.
Primary condition
Full Deep Peroneal Nerve Paralysis guide
Secondary condition
Full Ankle, Limitation of Motion guide
See how Deep Peroneal Nerve Paralysis and Ankle, Limitation of Motion combine with the rest of your service-connected conditions using the official VA combined-ratings formula.
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