MCMCB Pro
G51.32

G51.32Clonic hemifacial spasm, left

Billable / specific codeICD-10-CMleft

G51.32 is a billable, specific ICD-10-CM code for clonic hemifacial spasm, left. It is valid for submission on a claim.

Risk adjustment

G51.32 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

G51.32 is named in 34 Medicare coverage policies 34 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A54095Billing and Coding: Nerve Conduction Studies and Electromyography
  • A54969Billing and Coding: Nerve Conduction Studies and Electromyography
  • A56439Billing and Coding: Blepharoplasty
  • A56503Billing and Coding: Blepharoplasty, Eyelid Surgery, and Brow Lift

Related codes at this level

Codes that share G51.3. If G51.32 is not quite right, the correct code is usually one of these.

Questions about G51.32

Is G51.32 a billable ICD-10-CM code?
Yes. G51.32 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does G51.32 sit in the tabular list?
Diseases of the nervous system (G00-G99), in the block Nerve, nerve root and plexus disorders (G50-G59).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.