CPT code 50541: Renal cyst ablation, laparoscopic approach2026 Medicare rate & RVUs in Missouri
Reported for laparoscopic operative treatment of a symptomatic renal cyst, typically by opening or unroofing the cyst and treating its wall.
CMS doesn’t publish an office rate for 50541 in Missouri.
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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On this page 9 sections
What 50541 covers
A urologist typically performs this operation in a hospital or ambulatory surgical setting using laparoscopic access to treat a renal cyst. It is generally selected when a cyst is causing symptoms such as flank discomfort or interfering with urinary drainage and operative treatment is planned. The surgeon opens or unroofs the cyst and treats the remaining wall to reduce the chance of fluid reaccumulating; the operative report should establish the cyst’s renal location and the laparoscopic treatment performed.
Report the service for laparoscopic cyst treatment, not for treating a solid renal mass or removing part of the kidney. Document the indication, laterality, operative approach, and treatment performed. CMS assigns a 90-day global period, including the day-before preoperative visit and related postoperative care during that period. For multiple procedures in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. When both kidneys are treated, modifier 50 is paid at 150%. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
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 50541 pays more and less in Missouri
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
| Payment locality | Office | Facility |
|---|---|---|
| Metropolitan Kansas City, MO | Unavailable | $807.14 |
| Metropolitan St. Louis, MO | Unavailable | $811.53 |
| Rest of Missouri | Unavailable | $791.52 |
How the 50541 rate is calculated
Each of 50541’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 · 50541
RVUs × geographic indexes × conversion factor
Work16.44
16.44 RVUs× 1.000 GPCI
Practice expense5.99
5.99 RVUs× 1.000 GPCI
Malpractice2.15
2.15 RVUs× 1.000 GPCI
Adjusted RVUs
24.5800
Conversion factor
$33.4009
Medicare rate
$820.99
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 50541
50541 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 50541
Renal cyst ablation, laparoscopic approach
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.08/0.83/0.09 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 50541
Renal cyst ablation, laparoscopic approach
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
50541 without 50 · national facility
$820.99
Renal cyst ablation, laparoscopic approach
50541-50 · Bilateral: 150%
$1,231.49
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
50541 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 50542Renal mass ablationLaparoscopic approach
- Choose 50541 for laparoscopic treatment of a renal cyst; choose 50542 when the treated target is a renal mass.
- 50543Partial nephrectomyLaparoscopic approach
- 50543 is for laparoscopic partial nephrectomy involving removal of kidney tissue. 50541 describes laparoscopic treatment of a cyst without that partial-nephrectomy service.
- 50549Renal laparoscopyUnlisted procedure
- 50549 is the unlisted laparoscopic renal procedure code. Use 50541 when the documented operation is specifically laparoscopic renal cyst ablation.
50541 billing questions
How does this differ from 50542?
50541 is for laparoscopic treatment of a renal cyst. Use 50542 when the target is a renal mass rather than a cyst.
When would 50543 be more appropriate?
50543 describes laparoscopic partial nephrectomy, in which part of the kidney is removed. It is not the cyst-ablation code when the operative treatment is opening or unroofing a cyst.
What documentation supports 50541?
The operative report should identify the renal cyst, the clinical reason for treatment, the laparoscopic approach, and the treatment performed. Record laterality, especially when both kidneys are treated.
Can modifier 50 be used for bilateral treatment?
Yes. CMS identifies this as a bilateral procedure; with modifier 50, payment is at 150%.
Are related postoperative visits included?
Yes. The 90-day global period includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple-procedure reduction, with payment at 50%.
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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