CPT 21421
Cltx palatal/max fx wire fix
CPT 21421 at a glance
- Code
- 21421
- Code type
- CPT/HCPCS
- Short descriptor
- Cltx palatal/max fx wire fix
- Category
- ASC Surgical
- ASC payment status
- Payable in an ASC (surgical)
- CMS addendum
- AA (Surgical)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is CPT code 21421?
CPT 21421 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Cltx palatal/max fx wire fix". In the ASC context it is grouped under ASC Surgical.
Is CPT 21421 payable in an ambulatory surgery center (ASC)?
CPT 21421 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 21421 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Which specialties use CPT 21421?
CPT 21421 is most associated with General Surgery, Oral & Maxillofacial Surgery, Orthopaedic Surgery.
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.