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  6. 2026 ICD-10-CM Code G51

2026 ICD-10-CM Diagnosis Code G51

Facial nerve disorders

ICD-10-CM Code:
G51
ICD-10 Code for:
Facial nerve disorders
Is Billable?
Not Valid for Submission
Code Navigator:

G51 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity from the list below for a diagnosis of facial nerve disorders. The code is not specific and is NOT valid for the year 2026 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Facial nerve disorders

Non-specific codes like G51 require more digits to indicate the appropriate level of specificity. Consider using any of the following billable codes with a higher level of specificity when coding for facial nerve disorders:

  • Use G51.0 for Bell's palsy

  • Use G51.1 for Geniculate ganglionitis

  • Use G51.2 for Melkersson's syndrome

  • G51.3 for Clonic hemifacial spasm

  • Use G51.31 for Clonic hemifacial spasm, right

  • Use G51.32 for Clonic hemifacial spasm, left

  • Use G51.33 for Clonic hemifacial spasm, bilateral

  • Use G51.39 for Clonic hemifacial spasm, unspecified

  • Use G51.4 for Facial myokymia

  • Use G51.8 for Other disorders of facial nerve

  • Use G51.9 for Disorder of facial nerve, unspecified

Code Classification

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

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Includes

Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • disorders of 7th cranial nerve

Patient Education


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. Fractures (broken bones), especially in 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.


[Learn More in MedlinePlus]

Code History

  • FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026
  • FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025
  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.