CPT code 75605: Thoracic aortography, serial image acquisition2026 Medicare rate & RVUs in Montana

Reports physician supervision and interpretation of serial contrast images of the thoracic aorta during catheter-based evaluation of aortic disease.

CMS RVU26DEffective Oct 1, 2026One payment locality1.1K Medicare services in 2024

In Montana, Medicare pays $120.90 for 75605 in the office.

$120.90Office (non-facility)
Not available in this settingHospital or facility
−0.0%vs the national office rate ($120.91)

Check a contract rate as a % of Medicare · 75605 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 75605 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Montana
  2. What 75605 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 75605 covers

This service covers the physician’s supervision and interpretation of serial images obtained as contrast passes through the thoracic aorta. It may be used to assess aortic anatomy when evaluating suspected aneurysm, dissection, coarctation, or narrowing. A radiologist, cardiologist, vascular surgeon, or another qualified physician may interpret the study during a catheter angiography session in a hospital or other imaging setting.

Select this code when the documented thoracic aortography uses serial image acquisition; 75600 is the related thoracic study without serial imaging. The report should identify the imaged aortic segment, describe the imaging performed, and include the physician’s findings and interpretation. Catheter placement and contrast administration may be represented by separate procedure coding when performed and supported. Modifier 26 identifies the professional interpretation, modifier TC identifies the technical service, and billing without either modifier represents the global service. When the cardiovascular diagnostic multiple procedure reduction applies, it affects the technical component.

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 75605

Across 109 of 109 payment localities, the office rate for 75605 runs from $107.48 in Arkansas to $157.81 in San Benito County, CA. Montana pays $120.90. The RVUs are the same everywhere; the geographic indexes change the dollars.

75605 in Montana vs other payment areas
  1. Montana · this page$120.90
  2. Los Angeles, CA · California$135.35+$14.45
  3. Washington, DC area · District of Columbia$137.53+$16.63
  4. Miami, FL · Florida$131.31+$10.41
  5. Chicago, IL · Illinois$127.62+$6.72
  6. Manhattan, NY · New York$138.85+$17.95
  7. Alaska · Alaska$142.49+$21.59

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

Every other payment area

75605 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$108.99—
ArkansasArkansas$107.48—
ArizonaArizona$117.78—
Bakersfield, CACalifornia$127.39—
Chico, CACalifornia$126.97—
El Centro, CACalifornia$126.99—
Fresno, CACalifornia$126.97—
Hanford, CACalifornia$126.97—

75605 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.

$107.48

$142.49

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

View every state and territory as a table
75605 office rate range by state
State / territoryOffice rate rangeLocalities
AK$142.491
AL$108.991
AR$107.481
AZ$117.781
CA$126.97–$157.8129
CO$125.401
CT$128.731
DC$137.531
DE$119.671
FL$119.78–$131.313
GA$113.26–$123.232
GU$129.791
HI$129.791
IA$111.361
ID$112.111
IL$116.66–$127.624
IN$112.731
KS$110.991
KY$111.731
LA$111.61–$116.882
MA$124.75–$137.272
MD$121.85–$137.533
ME$112.81–$118.472
MI$114.63–$121.352
MN$119.911
MO$109.87–$117.123
MS$108.691
MT$120.901
NC$113.921
ND$118.131
NE$111.911
NH$123.571
NJ$130.13–$136.232
NM$115.281
NV$120.211
NY$115.56–$142.255
OH$114.061
OK$111.401
OR$119.21–$129.092
PA$114.16–$125.732
PR$121.711
RI$123.721
SC$114.191
SD$117.811
TN$111.541
TX$113.45–$125.048
UT$115.681
VA$118.19–$137.532
VI$121.711
VT$117.811
WA$124.47–$139.882
WI$114.351
WV$112.561
WY$119.701

See 75605 in every payment locality

How the 75605 rate is calculated

Each of 75605’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 · 75605

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.11

1.11 RVUs× 1.000 GPCI

Practice expense2.37

2.37 RVUs× 1.000 GPCI

Malpractice0.14

0.14 RVUs× 1.000 GPCI

Adjusted RVUs

3.6200

Conversion factor

$33.4009

Medicare rate

$120.91

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

8,504

Code
75605
Physician work
1.11
Practice expense
2.37
Malpractice
0.14

GPCI2026.csv

71

Locality
Montana
Physician work
1.000
Practice expense
1.000
Malpractice
0.998
Office calculation for 75605 in Montana
ComponentRVULocality factorAdjusted
Physician work1.11× 1.0001.1100
Practice expense2.37× 1.0002.3700
Malpractice0.14× 0.9980.1397
Total RVUs3.6197
Conversion factor× 33.4009

Office rate, Montana$120.90

Office: (1.11 × 1 + 2.37 × 1 + 0.14 × 0.998) × $33.4009 = $120.90

Open 75605 in the RVU calculator

Payment rules and modifiers for 75605

The CMS indicators that decide how 75605 is paid alongside other services.

CMS payment indicators · 75605

Thoracic aortography, serial image acquisition

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures6Diagnostic cardiovascular reduction applies to the technical component.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical1Diagnostic test with separate professional (26) and technical (TC) components.

What modifiers do to the payment

Modifier 26 · payment effect

With and without the modifier

75605 without 26 · national office

$120.91

Thoracic aortography, serial image acquisition

75605-26 · Professional component

$52.11

Pays only the interpretation and report.

When to use modifier 26

How 75605 has changed in Montana

75605 · Office / nonfacility

$120.90

Effective 2026-10-01

The base rate is $4.23 higher than on 2025-10-01, moving from $116.67 to $120.90 (3.6%).

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

    $116.67changed to$120.90

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.14 changed to 1.11
    • Practice expense RVU 2.33 changed to 2.37
    • Malpractice GPCI 0.978 changed to 0.998

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $120.41changed to$116.67

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 2.35 changed to 2.33
    • Malpractice RVU 0.13 changed to 0.14

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $118.44changed to$120.41

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $122.24changed to$118.44

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 2.34 changed to 2.35
  5. January 1, 2023

    RVU23A

    $125.17changed to$122.24

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 2.35 changed to 2.34
    • Malpractice GPCI 0.977 changed to 0.978

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $129.02changed to$125.17

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 2.45 changed to 2.35
    • Malpractice RVU 0.11 changed to 0.13

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $133.55changed to$129.02

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 2.43 changed to 2.45
    • Malpractice RVU 0.10 changed to 0.11
    • Malpractice GPCI 1.304 changed to 0.977

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $138.73changed to$133.55

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 2.53 changed to 2.43
    • Malpractice RVU 0.11 changed to 0.10
    • Malpractice GPCI 1.631 changed to 1.304

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $142.90changed to$138.73

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 2.65 changed to 2.53

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $141.66changed to$142.90

    • Conversion factor 35.8887 changed to 35.9996
    • Malpractice GPCI 1.429 changed to 1.631

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $141.24changed to$141.66

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 2.67 changed to 2.65
    • Malpractice GPCI 1.226 changed to 1.429

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $141.92changed to$141.24

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 2.65 changed to 2.67
    • Malpractice RVU 0.13 changed to 0.11

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $141.21changed to$141.92

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $153.79changed to$141.21

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 3.06 changed to 2.65
    • Malpractice RVU 0.08 changed to 0.13
    • Malpractice GPCI 1.165 changed to 1.226

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $157.13changed to$153.79

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 3.39 changed to 3.06
    • Malpractice GPCI 1.103 changed to 1.165

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $157.13

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$120.90Not available in this settingRVU26D
2026-07-01$120.90Not available in this settingRVU26C
2026-04-01$120.90Not available in this settingRVU26B
2026-01-01$120.90Not available in this settingRVU26A
2025-10-01$116.67Not available in this settingRVU25D
2025-07-01$116.67Not available in this settingRVU25C
2025-04-01$116.67Not available in this settingRVU25B
2025-01-01$116.67Not available in this settingRVU25A
2024-10-01$120.41Not available in this settingRVU24D
2024-07-01$120.41Not available in this settingRVU24C
2024-04-01$120.41Not available in this settingRVU24B
2024-03-09$120.41Not available in this settingRVU24AR
2024-01-01$118.44Not available in this settingRVU24A
2023-10-01$122.24Not available in this settingRVU23D
2023-07-01$122.24Not available in this settingRVU23C
2023-04-01$122.24Not available in this settingRVU23B
2023-01-01$122.24Not available in this settingRVU23A
2022-10-01$125.17Not available in this settingRVU22D
2022-07-01$125.17Not available in this settingRVU22C
2022-04-01$125.17Not available in this settingRVU22B
2022-01-01$125.17Not available in this settingRVU22A
2021-10-01$129.02Not available in this settingRVU21D
2021-07-01$129.02Not available in this settingRVU21C
2021-04-01$129.02Not available in this settingRVU21B
2021-01-01$129.02Not available in this settingRVU21A
2020-10-01$133.55Not available in this settingRVU20D
2020-07-01$133.55Not available in this settingRVU20C
2020-04-01$133.55Not available in this settingRVU20B
2020-01-01$133.55Not available in this settingRVU20A
2019-10-01$138.73Not available in this settingRVU19D
2019-07-01$138.73Not available in this settingRVU19C
2019-04-01$138.73Not available in this settingRVU19B
2019-01-01$138.73Not available in this settingRVU19A
2018-10-01$142.90Not available in this settingRVU18D
2018-07-01$142.90Not available in this settingRVU18C
2018-04-01$142.90Not available in this settingRVU18B
2018-01-01$142.90Not available in this settingRVU18AR1
2017-10-01$141.66Not available in this settingRVU17D
2017-07-01$141.66Not available in this settingRVU17C
2017-04-01$141.66Not available in this settingRVU17B
2017-01-01$141.66Not available in this settingRVU17A
2016-10-01$141.24Not available in this settingRVU16D
2016-07-01$141.24Not available in this settingRVU16C
2016-04-01$141.24Not available in this settingRVU16B
2016-01-01$141.24Not available in this settingRVU16A
2015-10-01$141.92Not available in this settingRVU15D
2015-07-01$141.92Not available in this settingRVU15C
2015-04-01$141.21Not available in this settingRVU15B
2015-01-01$141.21Not available in this settingRVU15A
2014-10-01$153.79Not available in this settingRVU14D
2014-07-01$153.79Not available in this settingRVU14C
2014-04-01$153.79Not available in this settingRVU14B
2014-01-01$153.79Not available in this settingRVU14A
2013-10-01$157.13Not available in this settingRVU13D
2013-07-01$157.13Not available in this settingRVU13C
2013-04-01$157.13Not available in this settingRVU13B
2013-01-01$157.13Not available in this settingRVU13AR

Price 75605 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

75605 billing questions

How is this different from 75600?

75605 is selected for thoracic aortography with serial image acquisition. Use 75600 for a thoracic study without serial imaging.

What do modifiers 26 and TC represent?

Modifier 26 reports the physician’s professional supervision and interpretation. Modifier TC reports the technical service, including equipment and staff; billing without either modifier represents the global service.

Is catheter placement included in this code?

The code represents supervision and interpretation of the imaging, not catheter placement. Catheter placement may be reported separately when performed and supported by the documentation.

What documentation supports reporting 75605?

Document the thoracic aortic segment examined, the use of serial image acquisition, and the interpreting physician’s findings and conclusions.

Which part can be affected by the cardiovascular multiple procedure reduction?

The reduction applies to the technical component. It does not reduce the professional component.

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 75605PPRRVU2026_Oct_nonQPP.csv, line 8,504 (RVU26D)
Geographic factors for MontanaGPCI2026.csv, line 71 (RVU26D)

Open CMS sourceHow we calculate rates

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