CPT code 51720: Bladder instillation, antineoplastic agent2026 Medicare rate & RVUs in Montana

Report this service when a clinician delivers an antineoplastic agent into the bladder through a catheter for intravesical treatment, such as BCG therapy.

CMS RVU26DEffective Oct 1, 2026One payment locality159.2K Medicare services in 2024

In Montana, Medicare pays $91.85 for 51720 in the office and $38.07 when it’s performed in a hospital or facility.

$91.85Office (non-facility)
$38.07Hospital or facility
+0.0%vs the national office rate ($91.85)

Check a contract rate as a % of Medicare · 51720 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 51720 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Montana
  2. What 51720 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 51720 covers

A urologist or other qualified clinician places a catheter and delivers an antineoplastic agent into the bladder, commonly in an office or outpatient setting. Intravesical BCG and chemotherapy are typical treatments for bladder cancer, including treatment after tumor resection or for carcinoma in situ. The service covers the drug’s delivery and retention in the bladder; it is distinct from endoscopic biopsy, lesion destruction, or simple bladder irrigation.

Select 51720 for the therapeutic instillation, not for catheter placement alone. Document the agent and administration details, including the retention instructions when available. The drug may be reported separately with the applicable drug code; catheter placement integral to the instillation is not separately reported as 51701. The 0-day global includes same-day preoperative and postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery for this service, and co-surgeon and team-surgery billing 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 Montana compares for 51720

Across 109 of 109 payment localities, the office rate for 51720 runs from $81.64 in Arkansas to $119.70 in San Benito County, CA. Montana pays $91.85. The RVUs are the same everywhere; the geographic indexes change the dollars.

51720 in Montana vs other payment areas
  1. Montana · this page$91.85
  2. Los Angeles, CA · California$102.72+$10.87
  3. Washington, DC area · District of Columbia$104.44+$12.59
  4. Miami, FL · Florida$99.92+$8.07
  5. Chicago, IL · Illinois$97.11+$5.26
  6. Manhattan, NY · New York$105.51+$13.66
  7. Alaska · Alaska$108.28+$16.43

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

Every other payment area

51720 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$82.78$35.73
ArkansasArkansas$81.64$35.45
ArizonaArizona$89.47$37.36
Bakersfield, CACalifornia$96.69$37.76
Chico, CACalifornia$96.37$37.43
El Centro, CACalifornia$96.39$37.45
Fresno, CACalifornia$96.37$37.43
Hanford, CACalifornia$96.37$37.43

51720 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.

$81.64

$108.28

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

View every state and territory as a table
51720 office rate range by state
State / territoryOffice rate rangeLocalities
AK$108.281
AL$82.781
AR$81.641
AZ$89.471
CA$96.37–$119.7029
CO$95.211
CT$97.801
DC$104.441
DE$90.911
FL$91.07–$99.923
GA$86.10–$93.632
GU$98.501
HI$98.501
IA$84.561
ID$85.131
IL$88.72–$97.114
IN$85.601
KS$84.291
KY$84.901
LA$84.82–$88.822
MA$94.73–$104.212
MD$92.55–$104.443
ME$85.68–$89.962
MI$87.12–$92.282
MN$91.001
MO$83.51–$88.993
MS$82.581
MT$91.851
NC$86.521
ND$89.671
NE$84.961
NH$93.841
NJ$98.84–$103.462
NM$87.631
NV$91.301
NY$87.77–$108.125
OH$86.681
OK$84.641
OR$90.52–$98.002
PA$86.75–$95.522
PR$92.461
RI$93.971
SC$86.761
SD$89.411
TN$84.711
TX$86.21–$94.968
UT$87.891
VA$89.76–$104.442
VI$92.461
VT$89.441
WA$94.51–$106.172
WI$86.801
WV$85.601
WY$90.901

See 51720 in every payment locality

How the 51720 rate is calculated

Each of 51720’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 · 51720

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.85

0.85 RVUs× 1.000 GPCI

Practice expense1.79

1.79 RVUs× 1.000 GPCI

Malpractice0.11

0.11 RVUs× 1.000 GPCI

Adjusted RVUs

2.7500

Conversion factor

$33.4009

Medicare rate

$91.85

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

The exact Montana inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,052

Code
51720
Physician work
0.85
Practice expense
1.79
Malpractice
0.11

GPCI2026.csv

71

Locality
Montana
Physician work
1.000
Practice expense
1.000
Malpractice
0.998
Office calculation for 51720 in Montana
ComponentRVULocality factorAdjusted
Physician work0.85× 1.0000.8500
Practice expense1.79× 1.0001.7900
Malpractice0.11× 0.9980.1098
Total RVUs2.7498
Conversion factor× 33.4009

Office rate, Montana$91.85

Office: (0.85 × 1 + 1.79 × 1 + 0.11 × 0.998) × $33.4009 = $91.85

Facility: (0.85 × 1 + 0.18 × 1 + 0.11 × 0.998) × $33.4009 = $38.07

Open 51720 in the RVU calculator

Payment rules and modifiers for 51720

The CMS indicators that decide how 51720 is paid alongside other services.

CMS payment indicators · 51720

Bladder instillation, antineoplastic agent

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is 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.

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

51720 without 51 · national office

$91.85

Bladder instillation, antineoplastic agent

51720-51 · Second procedure: 50%

$45.93

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

How 51720 has changed in Montana

51720 · Office / nonfacility

$91.85

Effective 2026-10-01

The base rate is $5.57 higher than on 2025-10-01, moving from $86.28 to $91.85 (6.5%).

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

    $86.28changed to$91.85

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.87 changed to 0.85
    • Practice expense RVU 1.68 changed to 1.79
    • Malpractice RVU 0.12 changed to 0.11
    • Malpractice GPCI 0.978 changed to 0.998

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $88.46changed to$86.28

    • Conversion factor 33.2875 changed to 32.3465
    • Malpractice RVU 0.11 changed to 0.12

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $87.02changed to$88.46

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $88.70changed to$87.02

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 1.64 changed to 1.68
  5. January 1, 2023

    RVU23A

    $89.55changed to$88.70

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 1.62 changed to 1.64
    • Malpractice RVU 0.10 changed to 0.11
    • Malpractice GPCI 0.977 changed to 0.978

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $90.99changed to$89.55

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 1.64 changed to 1.62

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $86.88changed to$90.99

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 1.42 changed to 1.64
    • Malpractice RVU 0.09 changed to 0.10
    • Malpractice GPCI 1.304 changed to 0.977

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $88.54changed to$86.88

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 1.44 changed to 1.42
    • Malpractice GPCI 1.631 changed to 1.304

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $88.80changed to$88.54

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 1.45 changed to 1.44

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $91.47changed to$88.80

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 1.55 changed to 1.45
    • Malpractice GPCI 1.429 changed to 1.631

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $112.29changed to$91.47

    • Conversion factor 35.8043 changed to 35.8887
    • Work RVU 1.50 changed to 0.87
    • Practice expense RVU 1.44 changed to 1.55
    • Malpractice RVU 0.16 changed to 0.09
    • Malpractice GPCI 1.226 changed to 1.429

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $112.69changed to$112.29

    • Conversion factor 35.9335 changed to 35.8043

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $112.13changed to$112.69

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $110.03changed to$112.13

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 1.42 changed to 1.44
    • Malpractice RVU 0.13 changed to 0.16
    • Malpractice GPCI 1.165 changed to 1.226

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $108.00changed to$110.03

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 1.52 changed to 1.42
    • Malpractice RVU 0.14 changed to 0.13
    • Malpractice GPCI 1.103 changed to 1.165

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $108.00

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$91.85$38.07RVU26D
2026-07-01$91.85$38.07RVU26C
2026-04-01$91.85$38.07RVU26B
2026-01-01$91.85$38.07RVU26A
2025-10-01$86.28$42.29RVU25D
2025-07-01$86.28$42.29RVU25C
2025-04-01$86.28$42.29RVU25B
2025-01-01$86.28$42.29RVU25A
2024-10-01$88.46$42.86RVU24D
2024-07-01$88.46$42.86RVU24C
2024-04-01$88.46$42.86RVU24B
2024-03-09$88.46$42.86RVU24AR
2024-01-01$87.02$42.16RVU24A
2023-10-01$88.70$43.63RVU23D
2023-07-01$88.70$43.63RVU23C
2023-04-01$88.70$43.63RVU23B
2023-01-01$88.70$43.63RVU23A
2022-10-01$89.55$43.87RVU22D
2022-07-01$89.55$43.87RVU22C
2022-04-01$89.55$43.87RVU22B
2022-01-01$89.55$43.87RVU22A
2021-10-01$90.99$44.23RVU21D
2021-07-01$90.99$44.23RVU21C
2021-04-01$90.99$44.23RVU21B
2021-01-01$90.99$44.23RVU21A
2020-10-01$86.88$46.46RVU20D
2020-07-01$86.88$46.46RVU20C
2020-04-01$86.88$46.46RVU20B
2020-01-01$86.88$46.46RVU20A
2019-10-01$88.54$47.82RVU19D
2019-07-01$88.54$47.82RVU19C
2019-04-01$88.54$47.82RVU19B
2019-01-01$88.54$47.82RVU19A
2018-10-01$88.80$56.40RVU18D
2018-07-01$88.80$56.40RVU18C
2018-04-01$88.80$56.40RVU18B
2018-01-01$88.80$56.40RVU18AR1
2017-10-01$91.47$68.14RVU17D
2017-07-01$91.47$68.14RVU17C
2017-04-01$91.47$68.14RVU17B
2017-01-01$91.47$68.14RVU17A
2016-10-01$112.29$83.64RVU16D
2016-07-01$112.29$83.64RVU16C
2016-04-01$112.29$83.64RVU16B
2016-01-01$112.29$83.64RVU16A
2015-10-01$112.69$83.95RVU15D
2015-07-01$112.69$83.95RVU15C
2015-04-01$112.13$83.53RVU15B
2015-01-01$112.13$83.53RVU15A
2014-10-01$110.03$82.09RVU14D
2014-07-01$110.03$82.09RVU14C
2014-04-01$110.03$82.09RVU14B
2014-01-01$110.03$82.09RVU14A
2013-10-01$108.00$79.08RVU13D
2013-07-01$108.00$79.08RVU13C
2013-04-01$108.00$79.08RVU13B
2013-01-01$108.00$79.08RVU13AR

Price 51720 for an earlier date of service

Where the Montana rate applies

Montana is a Medicare payment area, not a city. Our Census mapping connects it to 497 cities and communities in Montana. Some span more than one payment area; confirm with the service ZIP.

  • Absarokee
  • Acton
  • Alberton
  • Alder
  • Alzada
  • Amsterdam
  • Anaconda-Deer Lodge County
  • Antelope

Browse all communities in Montana

51720 billing questions

How is 51720 different from bladder irrigation or catheter insertion?

51720 represents therapeutic delivery of an antineoplastic agent into the bladder. Irrigation alone or catheter placement without that treatment does not meet the service; do not separately report 51701 for catheter placement integral to the instillation.

Can the drug be billed separately?

The drug may be reported separately with its applicable HCPCS drug code when the drug was supplied and billing requirements are met. 51720 represents the instillation service.

Should modifier 50 be appended for treatment of both sides?

No. Modifier 50 is inappropriate for this bladder service.

How does Medicare handle 51720 with another procedure in the same session?

The highest-valued procedure is paid in full, and other procedures in that session are subject to the standard multiple-procedure reduction. Same-day preoperative and postoperative care is included in the 0-day global period.

Can an assistant or co-surgeon be reported?

Medicare does not pay an assistant at surgery for 51720. Co-surgeon and team-surgery billing are not permitted.

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 51720PPRRVU2026_Oct_nonQPP.csv, line 6,052 (RVU26D)
Geographic factors for MontanaGPCI2026.csv, line 71 (RVU26D)

Open CMS sourceHow we calculate rates

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