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 Muscle Group XII (Leg/Foot).
Anatomical connection
Primary condition · VASRD 5312
Muscle Group XII (Leg/Foot)
Involves muscles at the front of the lower leg, helping with dorsiflexion (lifting foot).
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 Muscle Group XII (Leg/Foot) — severity of Common Peroneal Nerve Paralysis itself determines the percentage.
Example combined rating
10% Muscle Group XII (Leg/Foot) + 30% Common Peroneal Nerve Paralysis = 37%
The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 10% and 30% combine to 37%, not 40%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.
Primary condition
Full Muscle Group XII (Leg/Foot) guide
Secondary condition
Full Common Peroneal Nerve Paralysis guide
See how Muscle Group XII (Leg/Foot) and Common Peroneal Nerve Paralysis combine with the rest of your service-connected conditions using the official VA combined-ratings formula.
Open the calculator