CPT 21440
Cltx mndblr/max alv ridge fx
CPT 21440 at a glance
- Code
- 21440
- Code type
- CPT/HCPCS
- Short descriptor
- Cltx mndblr/max alv ridge fx
- 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 21440?
CPT 21440 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Cltx mndblr/max alv ridge fx". In the ASC context it is grouped under ASC Surgical.
Is CPT 21440 payable in an ambulatory surgery center (ASC)?
CPT 21440 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 21440 typically performed?
Ambulatory surgery center (POS 24); also commonly performed in an office or clinic (POS 11).
Which specialties use CPT 21440?
CPT 21440 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.