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8621
§ 4.124a Schedule of ratings—neurological conditions and convulsive disorders.

Common peroneal nerve inflammation (neuritis)

Inflammation of the common peroneal nerve, which may cause pain, numbness, or weakness in the lower leg and foot.

What the rating means

VA rates common peroneal nerve neuritis under diagnostic code 8621. Because this is a neuritis code, it is rated the same way as paralysis of the common peroneal nerve under code 8521, but the rating is capped: neuritis can reach only the moderate degree of incomplete paralysis, not severe or complete, unless the involvement is wholly sensory, in which case the rating is limited to mild or at most moderate. The possible ratings are 40% for complete paralysis, 30% for severe incomplete paralysis, 20% for moderate incomplete paralysis, and 10% for mild incomplete paralysis. Complete paralysis means foot drop and slight droop of the first phalanges of all toes, inability to dorsiflex the foot, loss of extension of the proximal phalanges of the toes, loss of abduction of the foot, weakened adduction, and anesthesia covering the entire dorsum of the foot and toes. Incomplete paralysis covers lesser degrees of lost or impaired function. These ratings apply to one side; if both legs are affected, the ratings are combined with application of the bilateral factor.

Evidence that helps

Medical records documenting your diagnosis of common peroneal nerve neuritis are the foundation of a rating. Physical examination findings are especially important: notes showing weakness or loss of foot dorsiflexion, toe extension, or foot abduction, reduced or absent sensation on the top of the foot and toes, or abnormal gait point toward higher levels of incomplete paralysis. Nerve conduction studies or electromyography that measure how well the peroneal nerve is conducting signals can help show the degree of damage. Imaging or operative reports may also document nerve involvement. Because the rating turns on how much function is lost compared with complete paralysis, records that describe exactly which movements are affected and how severely carry the most weight. Your own statements, and statements from people who see you daily, describing how foot weakness or numbness affects walking, standing, working, and routine activities can help show functional impact at each level.

Secondary conditions

Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.