CPT code 50957: Ureteroscopy, endoscopic lesion treatment2026 Medicare rate & RVUs in Riverside, CA

Reports ureteroscopic treatment directed at a ureteral lesion, such as endoscopic fulguration, rather than diagnostic inspection or biopsy alone.

CMS RVU26DEffective Oct 1, 2026One payment locality13 Medicare services in 2024

In Riverside, CA, Medicare pays $467.15 for 50957 in the office and $317.06 when it’s performed in a hospital or facility.

$467.15Office (non-facility)
$317.06Hospital or facility
+4.2%vs the national office rate ($448.24)

Check a contract rate as a % of Medicare · 50957 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 50957 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Riverside, CA
  2. What 50957 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 50957 covers

A urologist uses a ureteroscope to treat a lesion within the ureter, with the therapeutic work performed endoscopically rather than through an open incision. Fulguration is a typical example of treatment directed at a ureteral lesion. The procedure is generally performed in an operating-room or other procedural facility; the record should identify the lesion and describe the treatment actually carried out.

Select this code when the operative report supports endoscopic treatment, not merely inspection or tissue sampling. Document the treated site, findings, and technique. This is a minor procedure with a 0-day global period, so same-day preoperative and postoperative care is included. When related endoscopies are performed together, CMS endoscopy-family pricing applies rather than pricing each as an unrelated procedure. For bilateral reporting, modifier 50 is paid at 150%. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery are 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.

How Riverside, CA compares for 50957

Across 109 of 109 payment localities, the office rate for 50957 runs from $406.40 in Arkansas to $558.82 in Alaska. Riverside, CA pays $467.15. The RVUs are the same everywhere; the geographic indexes change the dollars.

50957 in Riverside, CA vs other payment areas
  1. Riverside, CA · this page$467.15
  2. Bakersfield, CA · California$460.44−$6.71
  3. Chico, CA · California$457.93−$9.22
  4. El Centro, CA · California$458.07−$9.08
  5. Fresno, CA · California$457.93−$9.22
  6. Hanford, CA · California$457.93−$9.22
  7. Los Angeles, CA · California$484.18+$17.03

Other areas in California first, then benchmark localities. Bars start at $0.

Every other payment area

50957 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$457.93$307.84
Merced, CACalifornia$457.93$307.84
Modesto, CACalifornia$457.93$307.84
Napa, CACalifornia$511.49$330.99
Oxnard, CACalifornia$479.95$318.08
Redding, CACalifornia$457.93$307.84
Rest of CaliforniaCalifornia$457.93$307.84
Sacramento, CACalifornia$475.46$316.20

50957 rates by state

Office rate range in each state. Select a state to see its payment localities.

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$406.40

$558.82

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
50957 office rate range by state
State / territoryOffice rate rangeLocalities
AK$558.821
AL$411.031
AR$406.401
AZ$437.981
CA$457.93–$547.3429
CO$457.411
CT$473.951
DC$498.801
DE$444.091
FL$453.76–$499.813
GA$432.19–$457.792
GU$463.561
HI$463.561
IA$414.201
ID$417.351
IL$446.91–$487.554
IN$419.121
KS$415.051
KY$423.731
LA$424.15–$440.362
MA$456.56–$492.792
MD$450.51–$498.803
ME$421.58–$435.972
MI$434.58–$460.752
MN$434.031
MO$420.03–$438.743
MS$413.161
MT$448.181
NC$424.651
ND$431.381
NE$415.251
NH$452.851
NJ$478.14–$495.932
NM$437.421
NV$443.701
NY$429.85–$524.325
OH$431.151
OK$420.611
OR$439.01–$466.602
PA$430.35–$465.862
PR$450.001
RI$455.941
SC$428.851
SD$429.391
TN$416.981
TX$428.31–$459.298
UT$433.401
VA$436.51–$498.802
VI$450.001
VT$432.221
WA$454.88–$499.272
WI$420.231
WV$434.401
WY$440.861

See 50957 in every payment locality

How the 50957 rate is calculated

Each of 50957’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 · 50957

RVUs × geographic indexes × conversion factor

Office or facility?

Work6.61

6.61 RVUs× 1.000 GPCI

Practice expense5.96

5.96 RVUs× 1.000 GPCI

Malpractice0.85

0.85 RVUs× 1.000 GPCI

Adjusted RVUs

13.4200

Conversion factor

$33.4009

Medicare rate

$448.24

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Riverside, CA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,008

Code
50957
Physician work
6.61
Practice expense
5.96
Malpractice
0.85

GPCI2026.csv

20

Locality
Riverside, CA
Physician work
1.018
Practice expense
1.096
Malpractice
0.853
Office calculation for 50957 in Riverside, CA
ComponentRVULocality factorAdjusted
Physician work6.61× 1.0186.7290
Practice expense5.96× 1.0966.5322
Malpractice0.85× 0.8530.7250
Total RVUs13.9862
Conversion factor× 33.4009

Office rate, Riverside, CA$467.15

Office: (6.61 × 1.018 + 5.96 × 1.096 + 0.85 × 0.853) × $33.4009 = $467.15

Facility: (6.61 × 1.018 + 1.86 × 1.096 + 0.85 × 0.853) × $33.4009 = $317.06

Open 50957 in the RVU calculator

Payment rules and modifiers for 50957

The CMS indicators that decide how 50957 is paid alongside other services.

CMS payment indicators · 50957

Ureteroscopy, endoscopic lesion treatment

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures3Endoscopy family rules apply.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

50957 without 50 · national office

$448.24

Ureteroscopy, endoscopic lesion treatment

50957-50 · Bilateral: 150%

$672.36

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).

When to use modifier 50

How 50957 has changed in Riverside, CA

50957 · Office / nonfacility

$467.15

Effective 2026-10-01

The base rate is $29.13 higher than on 2025-10-01, moving from $438.02 to $467.15 (6.7%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
  1. January 1, 2026

    RVU26A

    $438.02changed to$467.15

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 6.78 changed to 6.61
    • Practice expense RVU 5.43 changed to 5.96
    • Malpractice RVU 0.82 changed to 0.85
    • Work GPCI 1.014 changed to 1.018
    • Practice expense GPCI 1.093 changed to 1.096
    • Malpractice GPCI 0.892 changed to 0.853

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $446.03changed to$438.02

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 5.30 changed to 5.43

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $438.75changed to$446.03

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $447.94changed to$438.75

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 5.15 changed to 5.30
    • Malpractice RVU 0.80 changed to 0.82
    • Work GPCI 1.021 changed to 1.014
    • Practice expense GPCI 1.079 changed to 1.093
    • Malpractice GPCI 0.924 changed to 0.892
  5. January 1, 2023

    RVU23A

    $453.56changed to$447.94

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 5.06 changed to 5.15
    • Malpractice RVU 0.79 changed to 0.80
    • Work GPCI 1.027 changed to 1.021
    • Practice expense GPCI 1.065 changed to 1.079
    • Malpractice GPCI 0.955 changed to 0.924

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $456.56changed to$453.56

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 5.10 changed to 5.06
    • Malpractice RVU 0.77 changed to 0.79
    • Malpractice GPCI 0.896 changed to 0.955

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $460.74changed to$456.56

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 4.83 changed to 5.10
    • Malpractice RVU 0.79 changed to 0.77
    • Work GPCI 1.024 changed to 1.027
    • Practice expense GPCI 1.070 changed to 1.065
    • Malpractice GPCI 0.830 changed to 0.896

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $458.71changed to$460.74

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 4.88 changed to 4.83
    • Malpractice RVU 0.75 changed to 0.79
    • Work GPCI 1.021 changed to 1.024
    • Practice expense GPCI 1.074 changed to 1.070
    • Malpractice GPCI 0.753 changed to 0.830

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $457.79changed to$458.71

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 4.92 changed to 4.88
    • Work GPCI 1.020 changed to 1.021
    • Malpractice GPCI 0.689 changed to 0.753

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $453.05changed to$457.79

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 4.83 changed to 4.92
    • Work GPCI 1.024 changed to 1.020
    • Practice expense GPCI 1.079 changed to 1.074
    • Malpractice GPCI 0.626 changed to 0.689

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    No ratechanged to$453.05

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$467.15$317.06RVU26D
2026-07-01$467.15$317.06RVU26C
2026-04-01$467.15$317.06RVU26B
2026-01-01$467.15$317.06RVU26A
2025-10-01$438.02$348.57RVU25D
2025-07-01$438.02$348.57RVU25C
2025-04-01$438.02$348.57RVU25B
2025-01-01$438.02$348.57RVU25A
2024-10-01$446.03$356.16RVU24D
2024-07-01$446.03$356.16RVU24C
2024-04-01$446.03$356.16RVU24B
2024-03-09$446.03$356.16RVU24AR
2024-01-01$438.75$350.35RVU24A
2023-10-01$447.94$360.18RVU23D
2023-07-01$447.94$360.18RVU23C
2023-04-01$447.94$360.18RVU23B
2023-01-01$447.94$360.18RVU23A
2022-10-01$453.56$365.85RVU22D
2022-07-01$453.56$365.85RVU22C
2022-04-01$453.56$365.85RVU22B
2022-01-01$453.56$365.85RVU22A
2021-10-01$456.56$367.00RVU21D
2021-07-01$456.56$367.00RVU21C
2021-04-01$456.56$367.00RVU21B
2021-01-01$456.56$367.00RVU21A
2020-10-01$460.74$377.33RVU20D
2020-07-01$460.74$377.33RVU20C
2020-04-01$460.74$377.33RVU20B
2020-01-01$460.74$377.33RVU20A
2019-10-01$458.71$375.50RVU19D
2019-07-01$458.71$375.50RVU19C
2019-04-01$458.71$375.50RVU19B
2019-01-01$458.71$375.50RVU19A
2018-10-01$457.79$374.66RVU18D
2018-07-01$457.79$374.66RVU18C
2018-04-01$457.79$374.66RVU18B
2018-01-01$457.79$374.66RVU18AR1
2017-10-01$453.05$372.51RVU17D
2017-07-01$453.05$372.51RVU17C
2017-04-01$453.05$372.51RVU17B
2017-01-01$453.05$372.51RVU17A
2016-10-01Rate data unavailableRate data unavailableRVU16D
2016-07-01Rate data unavailableRate data unavailableRVU16C
2016-04-01Rate data unavailableRate data unavailableRVU16B
2016-01-01Rate data unavailableRate data unavailableRVU16A
2015-10-01Rate data unavailableRate data unavailableRVU15D
2015-07-01Rate data unavailableRate data unavailableRVU15C
2015-04-01Rate data unavailableRate data unavailableRVU15B
2015-01-01Rate data unavailableRate data unavailableRVU15A
2014-10-01Rate data unavailableRate data unavailableRVU14D
2014-07-01Rate data unavailableRate data unavailableRVU14C
2014-04-01Rate data unavailableRate data unavailableRVU14B
2014-01-01Rate data unavailableRate data unavailableRVU14A
2013-10-01Rate data unavailableRate data unavailableRVU13D
2013-07-01Rate data unavailableRate data unavailableRVU13C
2013-04-01Rate data unavailableRate data unavailableRVU13B
2013-01-01Rate data unavailableRate data unavailableRVU13AR

Price 50957 for an earlier date of service

Where the Riverside, CA rate applies

Riverside, CA is a Medicare payment area, not a city. Our Census mapping connects it to 127 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

  • Ontario
  • Riverside
  • San Bernardino
  • Adelanto
  • Aguanga
  • Anza
  • Apple Valley
  • Baker

Browse all communities in California

50957 billing questions

When is 50957 preferable to the biopsy code 50955?

Use 50957 when the documented work treats a ureteral lesion endoscopically. Use 50955 when the service is ureteroscopic biopsy rather than lesion treatment.

Can diagnostic ureteroscopy be reported separately with 50957?

The diagnostic inspection that leads to treatment during the same operative session is part of the therapeutic endoscopy. Related endoscopies performed together are subject to CMS endoscopy-family pricing.

How should bilateral treatment be reported?

Report modifier 50 when the procedure is performed bilaterally; CMS pays the bilateral procedure at 150%.

Can an assistant or co-surgeon be reported?

Assistant-at-surgery payment is allowed only when medical necessity is documented. Co-surgeons and team surgery are not permitted.

What documentation supports 50957?

The operative report should identify the ureteral lesion and describe the endoscopic treatment performed, such as fulguration. A report describing inspection or biopsy alone does not support this treatment code.

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

Show the CMS file lines behind this rate
RVUs for 50957PPRRVU2026_Oct_nonQPP.csv, line 6,008 (RVU26D)
Geographic factors for Riverside, CAGPCI2026.csv, line 20 (RVU26D)

Open CMS sourceHow we calculate rates

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