ICD-10-CM Code For Facial Nerve Disorders: Group Overview
The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group G51 includes conditions affecting the facial nerve such as Bell palsy, facial paralysis due to trauma, and other peripheral facial nerve disorders that impair facial movement and expression. These ICD-10-CM diagnosis codes are used to document a range of clinical scenarios capturing disease severity, unilateral or bilateral involvement, and associated functional deficits relevant to facial nerve dysfunction. Accurate coding within the ICD-10-CM G51 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.
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ICD-10-CM G51: Facial Nerve Disorders Overview
The ICD-10-CM G51 group covers disorders of the facial nerve, including acute and chronic paralysis, paresis, and other functional disturbances of cranial nerve VII that affect facial movement, expression, and eye closure. These diagnoses target the peripheral nervous system supplying the muscles of facial expression and can result from infectious, inflammatory, idiopathic, traumatic, or neoplastic causes. Accurate coding matters for appropriate claim processing and reflecting clinical complexity that impacts patient management and resource use.