CPT 27447
Total knee arthroplasty (knee replacement)
Last reviewed August 2026 · DataLily AI data team
What does CPT 27447 mean?
CPT 27447 reports a total knee arthroplasty — replacement of the knee joint with prosthetic femoral condyle and tibial plateau components, with or without patella resurfacing.
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CPT 27447 at a glance
- Code
- 27447
- Code type
- CPT/HCPCS
- Short descriptor
- Total knee arthroplasty
- Category
- ASC Surgical
- ASC eligibility
- ASC-eligible (surgical)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
- Medicare ASC rate
- $9,393.16 national · 2026Q2
What is CPT code 27447?
CPT 27447 reports a total knee arthroplasty — replacement of the knee joint with prosthetic femoral condyle and tibial plateau components, with or without patella resurfacing. Its official short descriptor is "Total knee arthroplasty", and in the ASC context it is grouped under ASC Surgical.
Is CPT 27447 eligible in an ambulatory surgery center (ASC)?
CPT 27447 can be performed in a certified ambulatory surgery center.
Where is CPT 27447 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is the Medicare ASC payment rate for CPT 27447?
The national Medicare ASC payment rate for CPT 27447 is $9,393.16 (Medicare ASC Payment System, 2026Q2). This is the national, unadjusted Medicare amount; the amount an individual ambulatory surgery center is paid is adjusted for local wage index and may differ. It reflects Medicare's facility payment only and does not include the surgeon's professional fee.
Which specialties use CPT 27447?
CPT 27447 is most associated with General Surgery, Ortho – Adult Reconstructive, Orthopaedic Surgery.
Reference information about ASC eligibility and typical procedure setting. Codes, descriptors, and ASC-eligibility status change over time. This is a coding reference, not billing, coding, or legal advice. Always verify against current guidance and individual payer policy before scheduling or billing. CPT is a registered trademark of the American Medical Association. Read the DataLily AI data methodology.