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8618
§ 4.124a Schedule of ratings—neurological conditions and convulsive disorders.

Circumflex nerve inflammation (neuritis)

Inflammation of the circumflex nerve, which may cause shoulder pain and weakness in arm lifting.

What the rating means

Circumflex nerve inflammation (neuritis) is rated under diagnostic code 8618, using the same rating formula as circumflex nerve paralysis under code 8518. VA rates this condition based on how much function you have lost in the arm and shoulder muscles the circumflex nerve controls — mainly the deltoid and teres minor, which handle raising and rotating the arm outward.

The highest level, complete paralysis, means you cannot raise your arm to the side at all and outward rotation is weakened. That is rated at 50% for the major arm and 40% for the minor arm. Below that, incomplete paralysis is divided into severe, moderate, and mild levels. Severe incomplete paralysis is rated at 30% for the major arm and 20% for the minor arm. Moderate incomplete paralysis is rated at 10% for either arm. Mild incomplete paralysis is rated at 0% for either arm. Because this condition is a neuritis rather than a true paralysis, the regulation notes that when involvement is wholly sensory, the rating should be for the mild or at most the moderate degree.

Evidence that helps

Medical records showing a diagnosis of circumflex nerve neuritis and describing how much shoulder and arm function you have lost are central to establishing your rating level. Physical examination findings are especially important — specifically, measurements of how far you can raise your arm to the side (abduction) and how much outward rotation remains, along with any weakness noted in the deltoid and teres minor muscles.

Nerve conduction studies or electromyography (EMG) results can show the degree of nerve damage and help distinguish complete from incomplete involvement. If your condition is purely sensory — meaning pain, numbness, or tingling without motor weakness — the regulation limits the rating to mild or at most moderate. Your own statements, and statements from people who see you daily, describing how shoulder weakness or pain affects tasks like lifting, reaching, dressing, or your ability to work can help show the functional impact at each level. Records from treating providers that track whether your symptoms are improving, stable, or worsening over time also support an accurate picture of severity.

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.