Hypoglossal nerve paralysis

Because this condition is rated on loss of motor function of the tongue, medical records and examination findings that document how the tongue moves — or fails to move — are central. A neurological examination showing complete absence of tongue movement on the affected side supports a complete paralysis rating. Findings of reduced but present movement, deviation of the tongue, or weakness that falls short of complete loss support an incomplete rating, with the degree of functional loss determining whether it reaches the moderate or severe level. Imaging or nerve studies that identify the location and extent of the nerve lesion can help establish severity. Statements from you or people who observe you daily about difficulty speaking, chewing, or swallowing — functions that depend on tongue motor control — can show how the impairment affects your life and work, and help connect exam findings to the rating criteria.