G51.4 Facial myokymia

Billable ICD-10-CM code, FY2026.

Applies from G51 Facial nerve disorders

Includes

• disorders of 7th cranial nerve

MS-DRG index

Defines the logic of DRG(s) 073-074 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 351.8 Other facial nerve disorders (approximate)

Code annotations containing back-references to G51.4

Back-references to G51.4

• Type 1 Excludes: G25.3 Myoclonus ("facial myokymia (G51.4)")

Diagnosis Index entries for G51.4

• Myokymia, facial

Nearby codes

• 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 (this code)
• G51.8 Other disorders of facial nerve
• G51.9 Disorder of facial nerve, unspecified