CPT 64646
Chemodenerv trunk musc 1-5
CPT 64646 at a glance
- Code
- 64646
- Code type
- CPT/HCPCS
- Short descriptor
- Chemodenerv trunk musc 1-5
- Category
- ASC Surgical
- ASC payment status
- Payable in an ASC (surgical)
- CMS addendum
- AA (Surgical)
- Typical setting
- Ambulatory surgery center (POS 24); also commonly performed in an office or clinic (POS 11).
What is CPT code 64646?
CPT 64646 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Chemodenerv trunk musc 1-5". In the ASC context it is grouped under ASC Surgical.
Is CPT 64646 payable in an ambulatory surgery center (ASC)?
CPT 64646 appears on Medicare's ASC Covered Procedures List (CMS Addendum AA), so Medicare reimburses it when the surgery is performed in a certified ambulatory surgery center.
Where is CPT 64646 typically performed?
Ambulatory surgery center (POS 24); also commonly performed in an office or clinic (POS 11).
Which specialties use CPT 64646?
CPT 64646 is most associated with Anesthesiology – Pain Medicine, Internal Medicine – Pain Medicine, Interventional Pain Medicine, Neurological Surgery, among others.
Reference information compiled from the CMS April 2026 ASC payment addenda (AA, BB, EE). Codes, descriptors, and ASC payment status change with each CMS update. This is a coding reference, not billing, coding, or legal advice. Always verify against the current CMS addenda and individual payer policy before billing. CPT is a registered trademark of the American Medical Association.