Bell's Palsy ICD-10-CM Codes

Bell's Palsy ICD-10-CM Codes

Uncover the 2023 guide on Bell's Palsy ICD-10-CM codes. Learn about the specific codes, clinical descriptions, and billing implications.

By Ericka Pingol on Jul 16, 2025.

Fact Checked by Ericka Pingol.

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What ICD-10 Codes Are Used for Bell's Palsy?

Bell's Palsy, a sudden weakness in the muscles on one half of the face, has its own set of ICD-10 codes for precise diagnosis and treatment. Here are the commonly used Bell's Palsy ICD codes:

  • G51.0: Bell's Palsy
  • G51.1: Geniculate ganglionitis
  • G51.2: Melkersson's syndrome
  • G51.3: Clonic hemifacial spasm
  • G51.8: Other disorders of facial nerve
  • G51.9: Disorder of facial nerve, unspecified

Which Bell's Palsy ICD Codes Are Billable?

Recognizing which Bell's Palsy ICD codes are billable is vital for healthcare providers. Here's an overview:

  • G51.0: Yes. This code represents the primary diagnosis of Bell's Palsy.
  • G51.1: Yes. Geniculate ganglionitis is an inflammation of the geniculate ganglion leading to facial nerve issues.
  • G51.2: Yes. Melkersson's syndrome is a rare neurological disorder that can have symptoms similar to Bell's Palsy.
  • G51.3: Yes. Clonic hemifacial spasm is a rare neuromuscular disorder.
  • G51.8: Yes. Other disorders of the facial nerve may require specialized treatment.
  • G51.9: Yes. Unspecified disorders of the facial nerve may need further diagnosis.

Clinical Information

Bell's Palsy is characterized by a sudden, temporary weakness or paralysis of the facial muscles on one side. Here's what you need to know:

  • The exact cause is unknown, but it's believed to occur due to swelling and inflammation of the nerve controlling the facial muscles.
  • Symptoms can vary from mild weakness to total paralysis and may include twitching, stiffness, drooping eyelid or corner of the mouth, drooling, and loss of the sense of taste.
  • Most people recover fully within three to six months, with or without treatment.
  • Physical therapy exercises can help improve muscle strength and coordination.
  • While it can affect anyone, it's more common in people between 15 and 60.

Synonyms Include:

  • Facial nerve palsy
  • Idiopathic facial paralysis
  • Peripheral facial palsy
  • Facial neuropathy
  • Acute peripheral facial palsy
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