CPT 27435
Incision of knee joint
CPT 27435 at a glance
- Code
- 27435
- Code type
- CPT/HCPCS
- Short descriptor
- Incision of knee joint
- 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 27435?
CPT 27435 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Incision of knee joint". In the ASC context it is grouped under ASC Surgical.
Is CPT 27435 payable in an ambulatory surgery center (ASC)?
CPT 27435 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 27435 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Which specialties use CPT 27435?
CPT 27435 is most associated with General Surgery, Ortho – Adult Reconstructive, 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.