Patients with Bell palsy present with inability to close the eye, inability to raise the corner of the mouth, and often difficulty controlling saliva drainage from the affected side. In contrast to peripheral lower motor neuron palsy, facial palsy can be caused by upper motor neuron lesion such as a stroke or nuclear lesion and typically only affects the lower portion of the face. Bilateral facial nerve palsy may be seen in the setting of infections such as Lyme disease.
G58.0 – Other disorders of facial nerve
280816001 – Facial Palsy