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CPT code 53850: Prostate treatment, microwave thermotherapy2026 Medicare rate & RVUs in Idaho

Urologists report transurethral microwave thermotherapy to heat obstructive prostate tissue as a minimally invasive treatment for lower urinary tract symptoms from benign prostatic enlargement.

CMS RVU26DEffective Oct 1, 2026One payment locality647 Medicare services in 2024

In Idaho, Medicare pays $1,317.15 for 53850 in the office and $308.63 when it’s performed in a hospital or facility.

$1,317.15Office (non-facility)
$308.63Hospital or facility
−7.7%vs the national office rate ($1,427.22)

Check a contract rate as a % of Medicare · 53850 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 53850 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Idaho
  2. What 53850 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 53850 covers

During transurethral microwave thermotherapy, a urologist passes a treatment catheter through the urethra and delivers microwave energy to heat prostate tissue contributing to bladder-outlet obstruction. The procedure is used for men with bothersome lower urinary tract symptoms associated with benign prostatic enlargement, such as weak stream, hesitancy, or frequency. It is generally performed in an outpatient urology setting.

Report this code for the microwave treatment, not for radiofrequency or water-vapor prostate therapy. Documentation should identify the prostate condition, symptoms, and treatment method. The 90-day global includes the day-before preoperative visit and related postoperative care during the 90 days after surgery. When other procedures occur in the same session, the highest-valued procedure is paid in full and additional procedures are subject to the standard 50% multiple-procedure reduction. Modifier 50 is inappropriate. Assistant-at-surgery services are not paid, and 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 Idaho compares for 53850

Across 109 of 109 payment localities, the office rate for 53850 runs from $1,243.15 in Arkansas to $1,979.23 in San Benito County, CA. Idaho pays $1,317.15. The RVUs are the same everywhere; the geographic indexes change the dollars.

53850 in Idaho vs other payment areas
  1. Idaho · this page$1,317.15
  2. Los Angeles, CA · California$1,651.74+$334.59
  3. Washington, DC area · District of Columbia$1,657.94+$340.79
  4. Miami, FL · Florida$1,511.81+$194.66
  5. Chicago, IL · Illinois$1,463.58+$146.43
  6. Manhattan, NY · New York$1,650.64+$333.49
  7. Alaska · Alaska$1,585.20+$268.05

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

Every other payment area

53850 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$1,263.95$304.76
ArkansasArkansas$1,243.15$301.50
ArizonaArizona$1,385.91$323.68
Bakersfield, CACalifornia$1,539.76$338.30
Chico, CACalifornia$1,537.77$336.31
El Centro, CACalifornia$1,537.88$336.43
Fresno, CACalifornia$1,537.77$336.31
Hanford, CACalifornia$1,537.77$336.31

53850 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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.

$1,243.15

$1,758.50

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

View every state and territory as a table
53850 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,585.201
AL$1,263.951
AR$1,243.151
AZ$1,385.911
CA$1,537.77–$1,979.2329
CO$1,503.061
CT$1,530.041
DC$1,657.941
DE$1,411.101
FL$1,384.42–$1,511.813
GA$1,298.84–$1,451.902
GU$1,586.101
HI$1,586.101
IA$1,309.301
ID$1,317.151
IL$1,332.94–$1,478.904
IN$1,326.041
KS$1,298.191
KY$1,288.961
LA$1,285.00–$1,357.782
MA$1,490.61–$1,670.322
MD$1,441.89–$1,657.943
ME$1,320.48–$1,407.912
MI$1,323.23–$1,399.582
MN$1,447.091
MO$1,257.11–$1,368.303
MS$1,250.621
MT$1,427.181
NC$1,336.831
ND$1,413.931
NE$1,318.711
NH$1,474.791
NJ$1,549.47–$1,636.412
NM$1,329.751
NV$1,424.711
NY$1,359.15–$1,689.875
OH$1,320.521
OK$1,290.781
OR$1,415.66–$1,560.682
PA$1,325.25–$1,485.082
PR$1,440.401
RI$1,468.691
SC$1,330.501
SD$1,412.361
TN$1,305.071
TX$1,315.07–$1,496.278
UT$1,351.231
VA$1,399.76–$1,657.942
VI$1,440.401
VT$1,403.881
WA$1,489.27–$1,710.812
WI$1,360.141
WV$1,275.931
WY$1,421.401

See 53850 in every payment locality

How the 53850 rate is calculated

Each of 53850’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 · 53850

RVUs × geographic indexes × conversion factor

Office or facility?

Work5.28

5.28 RVUs× 1.000 GPCI

Practice expense36.78

36.78 RVUs× 1.000 GPCI

Malpractice0.67

0.67 RVUs× 1.000 GPCI

Adjusted RVUs

42.7300

Conversion factor

$33.4009

Medicare rate

$1,427.22

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

The exact Idaho inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,227

Code
53850
Physician work
5.28
Practice expense
36.78
Malpractice
0.67

GPCI2026.csv

47

Locality
Idaho
Physician work
1.000
Practice expense
0.920
Malpractice
0.473
Office calculation for 53850 in Idaho
ComponentRVULocality factorAdjusted
Physician work5.28× 1.0005.2800
Practice expense36.78× 0.92033.8376
Malpractice0.67× 0.4730.3169
Total RVUs39.4345
Conversion factor× 33.4009

Office rate, Idaho$1317.15

Office: (5.28 × 1 + 36.78 × 0.92 + 0.67 × 0.473) × $33.4009 = $1317.15

Facility: (5.28 × 1 + 3.96 × 0.92 + 0.67 × 0.473) × $33.4009 = $308.63

Open 53850 in the RVU calculator

Payment rules and modifiers for 53850

53850 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 53850

Prostate treatment, microwave thermotherapy

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.08/0.83/0.09Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 53850

Prostate treatment, microwave thermotherapy

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.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

53850 without 51 · national office

$1,427.22

Prostate treatment, microwave thermotherapy

53850-51 · Second procedure: 50%

$713.61

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

Codes related to 53850

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 53850
CodeHow it relatesOffice range, Idaho
Used instead
53852Prostate ablation, radiofrequency thermotherapyRadiofrequency thermotherapy is a different energy method for treating prostate obstruction.$1,289.02
53854Prostate ablation, radiofrequency water vaporUses radiofrequency-generated water vapor to destroy prostate tissue rather than microwave energy.$3,128.14
52601TURP, electrosurgical resectionTransurethral prostate resection is a different procedural approach for prostatic obstruction.No office rate

How 53850 has changed in Idaho

53850 · Office / nonfacility

$1317.15

Effective 2026-10-01

The base rate is $112.98 higher than on 2025-10-01, moving from $1204.17 to $1317.15 (9.4%).

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

    $1204.17changed to$1317.15

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 5.42 changed to 5.28
    • Practice expense RVU 34.70 changed to 36.78
    • Malpractice RVU 0.65 changed to 0.67
    • Practice expense GPCI 0.908 changed to 0.920
    • Malpractice GPCI 0.461 changed to 0.473

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $1281.67changed to$1204.17

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 36.10 changed to 34.70
    • Malpractice RVU 0.66 changed to 0.65

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $1260.75changed to$1281.67

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $1298.48changed to$1260.75

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 36.52 changed to 36.10
    • Malpractice RVU 0.65 changed to 0.66
    • Practice expense GPCI 0.893 changed to 0.908
    • Malpractice GPCI 0.439 changed to 0.461

  5. January 1, 2023

    RVU23A

    $1335.64changed to$1298.48

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 37.52 changed to 36.52
    • Practice expense GPCI 0.877 changed to 0.893
    • Malpractice GPCI 0.416 changed to 0.439

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $1427.97changed to$1335.64

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 40.18 changed to 37.52
    • Malpractice RVU 0.64 changed to 0.65

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $1436.17changed to$1427.97

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 38.30 changed to 40.18
    • Malpractice RVU 0.62 changed to 0.64
    • Practice expense GPCI 0.890 changed to 0.877
    • Malpractice GPCI 0.464 changed to 0.416

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $1487.00changed to$1436.17

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 39.40 changed to 38.30
    • Malpractice RVU 0.59 changed to 0.62
    • Practice expense GPCI 0.902 changed to 0.890
    • Malpractice GPCI 0.512 changed to 0.464

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $1959.83changed to$1487.00

    • Conversion factor 35.9996 changed to 36.0391
    • Work RVU 10.08 changed to 5.42
    • Practice expense RVU 48.55 changed to 39.40
    • Malpractice RVU 1.11 changed to 0.59

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $1924.71changed to$1959.83

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 47.76 changed to 48.55
    • Practice expense GPCI 0.900 changed to 0.902
    • Malpractice GPCI 0.510 changed to 0.512

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $1903.55changed to$1924.71

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 47.34 changed to 47.76
    • Malpractice RVU 1.13 changed to 1.11
    • Practice expense GPCI 0.898 changed to 0.900
    • Malpractice GPCI 0.508 changed to 0.510

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $1907.19changed to$1903.55

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 47.24 changed to 47.34

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $1897.70changed to$1907.19

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $1874.46changed to$1897.70

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 46.56 changed to 47.24
    • Malpractice RVU 0.95 changed to 1.13
    • Practice expense GPCI 0.896 changed to 0.898
    • Malpractice GPCI 0.556 changed to 0.508

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $1905.38changed to$1874.46

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 50.70 changed to 46.56
    • Malpractice RVU 0.99 changed to 0.95
    • Practice expense GPCI 0.894 changed to 0.896
    • Malpractice GPCI 0.603 changed to 0.556

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $1905.38

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$1,317.15$308.63RVU26D
2026-07-01$1,317.15$308.63RVU26C
2026-04-01$1,317.15$308.63RVU26B
2026-01-01$1,317.15$308.63RVU26A
2025-10-01$1,204.17$324.23RVU25D
2025-07-01$1,204.17$324.23RVU25C
2025-04-01$1,204.17$324.23RVU25B
2025-01-01$1,204.17$324.23RVU25A
2024-10-01$1,281.67$330.79RVU24D
2024-07-01$1,281.67$330.79RVU24C
2024-04-01$1,281.67$330.79RVU24B
2024-03-09$1,281.67$330.79RVU24AR
2024-01-01$1,260.75$325.39RVU24A
2023-10-01$1,298.48$328.30RVU23D
2023-07-01$1,298.48$328.30RVU23C
2023-04-01$1,298.48$328.30RVU23B
2023-01-01$1,298.48$328.30RVU23A
2022-10-01$1,335.64$327.73RVU22D
2022-07-01$1,335.64$327.73RVU22C
2022-04-01$1,335.64$327.73RVU22B
2022-01-01$1,335.64$327.73RVU22A
2021-10-01$1,427.97$328.47RVU21D
2021-07-01$1,427.97$328.47RVU21C
2021-04-01$1,427.97$328.47RVU21B
2021-01-01$1,427.97$328.47RVU21A
2020-10-01$1,436.17$336.39RVU20D
2020-07-01$1,436.17$336.39RVU20C
2020-04-01$1,436.17$336.39RVU20B
2020-01-01$1,436.17$336.39RVU20A
2019-10-01$1,487.00$339.17RVU19D
2019-07-01$1,487.00$339.17RVU19C
2019-04-01$1,487.00$339.17RVU19B
2019-01-01$1,487.00$339.17RVU19A
2018-10-01$1,959.83$591.15RVU18D
2018-07-01$1,959.83$591.15RVU18C
2018-04-01$1,959.83$591.15RVU18B
2018-01-01$1,959.83$591.15RVU18AR1
2017-10-01$1,924.71$586.21RVU17D
2017-07-01$1,924.71$586.21RVU17C
2017-04-01$1,924.71$586.21RVU17B
2017-01-01$1,924.71$586.21RVU17A
2016-10-01$1,903.55$581.45RVU16D
2016-07-01$1,903.55$581.45RVU16C
2016-04-01$1,903.55$581.45RVU16B
2016-01-01$1,903.55$581.45RVU16A
2015-10-01$1,907.19$582.58RVU15D
2015-07-01$1,907.19$582.58RVU15C
2015-04-01$1,897.70$579.68RVU15B
2015-01-01$1,897.70$579.68RVU15A
2014-10-01$1,874.46$577.73RVU14D
2014-07-01$1,874.46$577.73RVU14C
2014-04-01$1,874.46$577.73RVU14B
2014-01-01$1,874.46$577.73RVU14A
2013-10-01$1,905.38$562.49RVU13D
2013-07-01$1,905.38$562.49RVU13C
2013-04-01$1,905.38$562.49RVU13B
2013-01-01$1,905.38$562.49RVU13AR

Price 53850 for an earlier date of service

Where the Idaho rate applies

Idaho is a Medicare payment area, not a city. Our Census mapping connects it to 235 cities and communities in Idaho. Some span more than one payment area; confirm with the service ZIP.

  • Aberdeen
  • Acequia
  • Albion
  • American Falls
  • Ammon
  • Arbon Valley
  • Arco
  • Arimo

Browse all communities in Idaho

53850 billing questions

How does this differ from CPT 53852?

CPT 53850 is for microwave thermotherapy. CPT 53852 is for transurethral radiofrequency thermotherapy.

How does this differ from CPT 53854?

CPT 53854 describes prostate tissue destruction using radiofrequency-generated water vapor. CPT 53850 uses microwave energy delivered through a treatment catheter.

Should modifier 50 be appended?

No. The descriptor and anatomy make bilateral adjustment inappropriate.

What postoperative care is included?

The 90-day global includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.

What happens when another procedure is performed in the same session?

The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple-procedure reduction.

What should the record support?

Document the prostate condition and symptoms, and identify microwave thermotherapy as the treatment performed.

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 53850PPRRVU2026_Oct_nonQPP.csv, line 6,227 (RVU26D)
Geographic factors for IdahoGPCI2026.csv, line 47 (RVU26D)

Open CMS sourceHow we calculate rates

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