G51.3
⚠ Non-billable
Clonic hemifacial spasm
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G51.3
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 G51.3?
ICD-10-CM code G51.3 represents Clonic hemifacial spasm. 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 G51.3 billable?
No. G51.3 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is G51.3 in?
G51.3 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
Related codes in the G51 category
G51
Facial nerve disorders
Non-billable
G51.0
Bell's palsy
Billable
G51.1
Geniculate ganglionitis
Billable
G51.2
Melkersson's syndrome
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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