ICD-10-CM category
G51 Facial nerve disorders
G51 is a category, not a billable code. Report one of the 10 complete codes below.
Codes in G51
- G51.0Bell's palsy
- G51.1Geniculate ganglionitis
- G51.2Melkersson's syndrome
- G51.31Clonic hemifacial spasm, right
- G51.32Clonic hemifacial spasm, left
- G51.33Clonic hemifacial spasm, bilateral
- G51.39Clonic hemifacial spasm, unspecified
- G51.4Facial myokymia
- G51.8Other disorders of facial nerve
- G51.9Disorder of facial nerve, unspecified
Outside the US? G51 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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