G51.39
G51.39 — Clonic hemifacial spasm, unspecified
Billable / specific codeICD-10-CM
G51.39 is a billable, specific ICD-10-CM code for clonic hemifacial spasm, unspecified. It is valid for submission on a claim.
Risk adjustment
G51.39 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
G51.39 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56612Billing and Coding: CT of the Head
- A56874Billing and Coding: Stereotactic Radiation Therapy: Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT)
Code history
G51.39 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share G51.3. If G51.39 is not quite right, the correct code is usually one of these.
Questions about G51.39
- Is G51.39 a billable ICD-10-CM code?
- Yes. G51.39 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does G51.39 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Nerve, nerve root and plexus disorders (G50-G59).