CPT code 01402: Knee replacement anesthesia, total knee arthroplasty2026 Medicare rate & RVUs in Maine
Anesthesia for total knee arthroplasty, reported for the anesthesia service accompanying surgical replacement of the knee joint with prosthetic components.
CMS doesn’t publish an office rate for 01402 in Maine.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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What 01402 covers
This service accompanies total knee replacement, in which the knee joint is surgically replaced with prosthetic components. An anesthesiologist or CRNA typically reports the anesthesia for a hospital or ambulatory surgical facility case; the surgeon reports the arthroplasty separately.
Choose 01402 when the operative procedure is total knee arthroplasty, rather than 01400 for other open or arthroscopic knee-joint procedures or 01404 for knee disarticulation. The operative record should identify the arthroplasty, and the anesthesia record should support the practitioner’s service and its start and end times. This code has 7 base units; Medicare payment is (base units plus time units) multiplied by the locality’s anesthesia conversion factor. Time is recorded in minutes from anesthesia preparation until the practitioner is no longer in personal attendance and the patient can safely be placed under postoperative care, then converted to 15-minute units to one decimal place; the conversion factor varies by locality.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
Where 01402 pays more and less in Maine
| Payment locality | Office | Facility |
|---|---|---|
| Rest of Maine | Unavailable | Unavailable |
| Southern Maine, ME | Unavailable | Unavailable |
How the 01402 rate is calculated
Each of 01402’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 01402
RVUs × geographic indexes × conversion factor
Work0.00
0.00 RVUs× 1.000 GPCI
Practice expense0.00
0.00 RVUs× 1.000 GPCI
Malpractice0.00
0.00 RVUs× 1.000 GPCI
Adjusted RVUs
0.0000
Conversion factor
$33.4009
Medicare rate
$0.00
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 01402
01402 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.
Place of service · 01402
Which rate does Medicare pay?
The POS code on the claim line (CMS-1500 box 24B).
POS 11 · non-facility rate · national
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01402 isn’t priced in this setting.
01402 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 01400Knee surgery anesthesiaOpen or arthroscopic procedures
- 01402 is specific to total knee arthroplasty. Use 01400 for other open or arthroscopic knee-joint procedures.
- 01404Knee disarticulationAmputation through knee joint
- 01404 applies to knee disarticulation, an amputation through the knee; 01402 applies to total knee replacement.
- 01486Ankle replacement anesthesiaOpen total joint replacement
- 01486 is for open total ankle replacement. Select 01402 when the replaced joint is the knee.
01402 billing questions
When should 01402 be chosen instead of 01400?
Use 01402 when the operation is a total knee arthroplasty. Code 01400 is for other open or arthroscopic procedures on the knee joint.
Does 01402 cover knee disarticulation?
No. Knee disarticulation is reported with anesthesia code 01404; 01402 is for total knee arthroplasty.
What documentation supports reporting 01402?
The operative record should identify the total knee arthroplasty. The anesthesia record should support the anesthesia practitioner’s service and document the start and end times.
How are the units calculated?
The code has 7 base units. Anesthesia time is reported in minutes and converted to 15-minute units to one decimal place; Medicare payment uses (base units plus time units) multiplied by the locality’s anesthesia conversion factor.
Is the surgeon’s arthroplasty reported separately?
Yes. The surgeon reports the knee arthroplasty, while the anesthesia professional reports the anesthesia service.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
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