HCPCS C2644
Brachytx cesium-131 chloride
HCPCS C2644 at a glance
- Code
- C2644
- Code type
- CPT/HCPCS
- Short descriptor
- Brachytx cesium-131 chloride
- Category
- ASC Ancillary
- ASC payment status
- Payable in an ASC (ancillary)
- CMS addendum
- BB (Ancillary)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is HCPCS code C2644?
HCPCS C2644 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Brachytx cesium-131 chloride". In the ASC context it is grouped under ASC Ancillary.
Is HCPCS C2644 payable in an ambulatory surgery center (ASC)?
HCPCS C2644 is a covered ancillary service (CMS Addendum BB). Medicare reimburses it in the ASC setting when it is integral to a covered ASC surgical procedure.
Where is HCPCS C2644 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
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.