ICD-10-CM Diagnosis Code (2025)
Official Description for G51
Facial nerve disorders
Coding Notes & Guidelines for G51
Includes Notes
disorders of 7th cranial nerve
Excludes1: Not Coded Here
postherpetic geniculate ganglionitis (B02.21)
Inclusion Terms
Facial palsy
Inclusion Terms
Melkersson-Rosenthal syndrome
Child Codes (More Specific Codes for G51):
G51.0 - Bell's palsy
G51.1 - Geniculate ganglionitis
G51.2 - Melkersson's syndrome
G51.3 - Clonic hemifacial spasm
G51.31 - Clonic hemifacial spasm, right
G51.32 - Clonic hemifacial spasm, left
G51.33 - Clonic hemifacial spasm, bilateral
G51.39 - Clonic hemifacial spasm, unspecified
G51.4 - Facial myokymia
G51.8 - Other disorders of facial nerve
G51.9 - Disorder of facial nerve, unspecified
About ICD-10-CM Code G51 (Facial nerve disorders)
ICD-10-CM code G51 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM G51 became effective on October 1, 2024.
This page provides detailed information about G51 - Facial nerve disorders. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Facial nerve disorders.