Skip to Main Content

++

Condition/Synonym

++

  • Facial palsy

  • Peripheral facial paralysis

++

ICD-9-CM Code

++

++

ICD-10-CM Code

++

  • G51.0 Bell's palsy, facial palsy

++

Preffered Practice Practice Pattern

++

  • 5F: Impaired peripheral nerve integrity and muscle performance associated with peripheral nerve injury1

++

Key Features

++

Description

++

  • Paralysis or weakness of the muscles on one side of the face.

  • Sudden onset, often overnight.

  • Damage to the seventh cranial (facial) nerve that controls muscles on one side of the face causes that side of face to droop.

  • Nerve damage to the nerve may affect sense of taste and production of tears and saliva.

++

Essentials of Diagnosis

++

  • Lower motor neuron disease (LMN).

  • Diagnosis is usually made by history and clinical examination.

++

General Considerations

++

  • Afflicts approximately 40,000 Americans each year

++

Demographics

++

  • Men and women equally

  • Any age, but it is less common before age 15 or after age 60

  • More prevalent in people who have diabetes or upper respiratory ailments such as the flu or a cold

  • More in pregnant women

++

Clinical Findings

++

Signs and Symptoms

++

  • Sudden weakness or paralysis on one side of the face that causes it to droop: main symptom

  • Difficulty in closing the eye on the affected side

  • Drooling

  • Dry mouth

  • Eye problems, such as excessive tearing or a dry eye

  • Loss of ability to taste

  • Pain in or behind ear

  • Numbness in the affected side of your face

  • Increased sensitivity to sound

  • Headache

  • Facial twitch

  • Inability to smile or make facial expressions

++

Functional Implications

++

  • Dry eyes

  • Eating

  • Hearing

  • Psychological impact

++

Possible Contributing Causes

++

  • In most cases of Bell palsy, the nerve that controls muscles on one side of the face is damaged by inflammation.

  • The cause of Bell palsy is not clear.

  • Most cases are thought to be caused by the herpes virus that causes chickenpox and shingles, and Epstein-Barr virus that causes mononucleosis.

++

Differential Diagnosis

++

++

Means of Confirmation or Diagnosis

++

Imaging

++

++

Diagnostic Procedures

++

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.