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8528
§ 4.124a Schedule of ratings—neurological conditions and convulsive disorders.

Obturator nerve paralysis

Paralysis of the obturator nerve, which may cause weakness in bringing the legs together and inner thigh numbness.

What the rating means

Obturator nerve paralysis is rated under diagnostic code 8528. There are two possible ratings: 10% for severe to complete paralysis, and 0% for mild or moderate paralysis. The difference between these two levels turns on how much function you have lost. Complete paralysis represents the fullest picture of impairment for this nerve; incomplete paralysis means your function is substantially less impaired than that full picture, whether because the nerve lesion is at a different level or because the nerve has partially recovered. When the involvement is entirely sensory rather than motor, the rating should be for the mild or, at most, moderate degree. The ratings apply to one side; if both sides are affected, VA combines the separate evaluations and applies the bilateral factor.

Evidence that helps

Medical records documenting the extent of obturator nerve dysfunction are the foundation of a rating for this condition. An examination that describes whether paralysis is complete or incomplete, and whether any loss is motor, sensory, or both, speaks directly to which level applies. Nerve conduction studies or electromyography results that show the degree of nerve damage or recovery can help establish whether impairment is mild, moderate, or severe to complete. If function has partially returned, records noting the degree of regeneration are relevant. Because a purely sensory loss is rated no higher than moderate, records and examination findings that distinguish motor from sensory involvement matter. Statements from you describing how weakness or loss of sensation in the inner thigh and hip area affects your movement, daily activities, or work can help show the functional picture that medical findings alone may not fully capture.

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.