Secondary Condition Claim · VASRD 8528
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 Common Peroneal Nerve Paralysis when it develops after Posterior Tibial Nerve Paralysis.
Loss of nerve control
Primary condition · VASRD 8524
Posterior Tibial Nerve Paralysis
The posterior tibial nerve runs down the back of the calf and controls movement and sensation in the foot and toes. Damage to this nerve can cause numbness, tingling, weakness, or in severe cases the foot becoming fixed in a downward (plantar flexed) position, and it's most often linked to a specific leg injury or surgery.
Secondary condition · VASRD 8528
Common Peroneal Nerve Paralysis
Paralysis or weakness in the lower leg affecting foot lift (foot drop).
The VA rates Common Peroneal Nerve Paralysis the same way whether it's claimed directly or as secondary to Posterior Tibial Nerve Paralysis — severity of Common Peroneal Nerve Paralysis itself determines the percentage.
Example combined rating
20% Posterior Tibial Nerve Paralysis + 30% Common Peroneal Nerve Paralysis = 44%
The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 20% and 30% combine to 44%, not 50%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.
Primary condition
Full Posterior Tibial Nerve Paralysis guide
Secondary condition
Full Common Peroneal Nerve Paralysis guide
See how Posterior Tibial Nerve Paralysis and Common Peroneal Nerve Paralysis combine with the rest of your service-connected conditions using the official VA combined-ratings formula.
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