Facial Nerve Diseases

**Definition:** Diseases of the facial nerve or nuclei. Pontine disorders may affect the facial nuclei or nerve fascicle. The nerve may be involved intracranially, along its course through the petrous portion of the temporal bone, or along its extracranial course. Clinical manifestations include facial muscle weakness, loss of taste from the anterior tongue, hyperacusis, and decreased lacrimation.

**Tree numbers:** - C07.465.299 - C10.292.319

**Synonyms:** - Cranial Nerve VII Diseases - Cranial Nerve VII Disorders - Facial Neuropathy - Facial Nerve Disorders - Seventh Cranial Nerve Diseases