ICD-10-CM Code G51.8

Other disorders of facial nerve

Version 2021 Billable Code

Valid for Submission

G51.8 is a billable code used to specify a medical diagnosis of other disorders of facial nerve. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code G51.8 might also be used to specify conditions or terms like alajouanine's syndrome, chorda tympani disorder, chronic pain in face, compression facial neuropathy, dissociative neurological symptom disorder co-occurrent with facial spasm, facial hemiatrophy, etc

Short Description:Other disorders of facial nerve
Long Description:Other disorders of facial nerve

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code G51.8 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Alajouanine's syndrome
  • Chorda tympani disorder
  • Chronic pain in face
  • Compression facial neuropathy
  • Dissociative neurological symptom disorder co-occurrent with facial spasm
  • Facial hemiatrophy
  • Facial neuralgia
  • Facial spasm
  • Hereditary geniospasm
  • Inflammatory facial neuropathy
  • Nervus intermedius disorder
  • Persistent idiopathic facial pain
  • Risus sardonicus
  • Seventh cranial nerve abnormal
  • Vidian neuralgia

Convert G51.8 to ICD-9

  • 351.8 - Facial nerve dis NEC (Approximate Flag)

Code Classification

  • Diseases of the nervous system (G00–G99)
    • Nerve, nerve root and plexus disorders (G50-G59)
      • Facial nerve disorders (G51)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients

Facial Injuries and Disorders

Face injuries and disorders can cause pain and affect how you look. In severe cases, they can affect sight, speech, breathing and your ability to swallow. Broken bones, especially the bones of your nose, cheekbone and jaw, are common facial injuries.

Certain diseases also lead to facial disorders. For example, nerve diseases like trigeminal neuralgia or Bell's palsy sometimes cause facial pain, spasms and trouble with eye or facial movement. Birth defects can also affect the face. They can cause underdeveloped or unusually prominent facial features or a lack of facial expression. Cleft lip and palate are a common facial birth defect.

  • Face pain (Medical Encyclopedia)
  • Facial nerve palsy due to birth trauma (Medical Encyclopedia)
  • Facial paralysis (Medical Encyclopedia)
  • Facial trauma (Medical Encyclopedia)

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