G51
⚠ Non-billable
Facial nerve disorders
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G51
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Nervous System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code G51?
ICD-10-CM code G51 represents Facial nerve disorders. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Nervous System chapter, effective October 1, 2025 – September 30, 2026.
Is G51 billable?
No. G51 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is G51 in?
G51 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
Related codes in the G51 category
G51.0
Bell's palsy
Billable
G51.1
Geniculate ganglionitis
Billable
G51.2
Melkersson's syndrome
Billable
G51.3
Clonic hemifacial spasm
Non-billable
G51.4
Facial myokymia
Billable
G51.8
Other disorders of facial nerve
Billable
G51.9
Disorder of facial nerve, unspecified
Billable
G51.31
Clonic hemifacial spasm, right
Billable
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