CPT code 75577: Coronary plaque analysis, CTA-based quantification2026 Medicare rate & RVUs in New Mexico

Reports quantitative assessment of coronary atherosclerotic plaque from coronary CT angiography data, including image processing, interpretation, and a separate report.

CMS RVU26DEffective Oct 1, 2026One payment locality

In New Mexico, Medicare pays $930.88 for 75577 in the office.

$930.88Office (non-facility)
Not available in this settingHospital or facility
−8.0%vs the national office rate ($1,012.05)

Check a contract rate as a % of Medicare · 75577 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 75577 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in New Mexico
  2. What 75577 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 75577 covers

This service analyzes coronary CT angiography images to quantify atherosclerotic plaque burden and assess plaque characteristics in the coronary arteries. Image-processing software and trained staff support the analysis; a qualified physician interprets the results and documents the findings. It is used in cardiac imaging settings when a clinician seeks a detailed plaque assessment from coronary CTA data, rather than only a visual review of the angiogram or a coronary calcium score.

Report 75577 when the quantitative plaque analysis is performed and its findings are documented in a report. The record should support that coronary CTA data were analyzed and identify the resulting plaque findings. CMS recognizes professional and technical components: modifier 26 identifies the interpretation, while modifier TC identifies the equipment and staff portion. Report the global service without either modifier when one billing entity provides both components.

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 New Mexico compares for 75577

Across 109 of 109 payment localities, the office rate for 75577 runs from $872.78 in Arkansas to $1,448.43 in San Benito County, CA. New Mexico pays $930.88. The RVUs are the same everywhere; the geographic indexes change the dollars.

75577 in New Mexico vs other payment areas
  1. New Mexico · this page$930.88
  2. Los Angeles, CA · California$1,192.35+$261.47
  3. Washington, DC area · District of Columbia$1,188.56+$257.68
  4. Miami, FL · Florida$1,054.86+$123.98
  5. Chicago, IL · Illinois$1,019.32+$88.44
  6. Manhattan, NY · New York$1,173.92+$243.04
  7. Alaska · Alaska$1,089.32+$158.44

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

Every other payment area

75577 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$888.57—
ArkansasArkansas$872.78—
ArizonaArizona$981.37—
Bakersfield, CACalifornia$1,106.20—
Chico, CACalifornia$1,106.03—
El Centro, CACalifornia$1,106.03—
Fresno, CACalifornia$1,106.03—
Hanford, CACalifornia$1,106.03—

75577 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.

$872.78

$1,277.23

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

View every state and territory as a table
75577 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,089.321
AL$888.571
AR$872.781
AZ$981.371
CA$1,106.03–$1,448.4329
CO$1,074.871
CT$1,088.581
DC$1,188.561
DE$1,000.241
FL$969.68–$1,054.863
GA$906.31–$1,028.182
GU$1,145.881
HI$1,145.881
IA$927.571
ID$932.611
IL$927.55–$1,040.054
IN$939.501
KS$916.951
KY$902.901
LA$899.05–$954.342
MA$1,064.21–$1,203.532
MD$1,023.98–$1,188.563
ME$932.86–$1,002.592
MI$926.83–$978.822
MN$1,039.351
MO$876.49–$964.923
MS$875.121
MT$1,012.041
NC$945.651
ND$1,011.061
NE$935.401
NH$1,052.101
NJ$1,103.69–$1,171.072
NM$930.881
NV$1,012.751
NY$962.45–$1,200.895
OH$926.631
OK$906.601
OR$1,007.62–$1,121.072
PA$931.43–$1,053.142
PR$1,022.821
RI$1,044.811
SC$937.171
SD$1,010.941
TN$921.911
TX$923.55–$1,068.878
UT$952.961
VA$994.86–$1,188.562
VI$1,022.821
VT$1,001.401
WA$1,064.06–$1,236.072
WI$969.651
WV$884.131
WY$1,011.611

See 75577 in every payment locality

How the 75577 rate is calculated

Each of 75577’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 · 75577

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.85

0.85 RVUs× 1.000 GPCI

Practice expense29.40

29.40 RVUs× 1.000 GPCI

Malpractice0.05

0.05 RVUs× 1.000 GPCI

Adjusted RVUs

30.3000

Conversion factor

$33.4009

Medicare rate

$1,012.05

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

The exact New Mexico inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

8,495

Code
75577
Physician work
0.85
Practice expense
29.40
Malpractice
0.05

GPCI2026.csv

77

Locality
New Mexico
Physician work
1.000
Practice expense
0.917
Malpractice
1.201
Office calculation for 75577 in New Mexico
ComponentRVULocality factorAdjusted
Physician work0.85× 1.0000.8500
Practice expense29.40× 0.91726.9598
Malpractice0.05× 1.2010.0601
Total RVUs27.8699
Conversion factor× 33.4009

Office rate, New Mexico$930.88

Office: (0.85 × 1 + 29.4 × 0.917 + 0.05 × 1.201) × $33.4009 = $930.88

Open 75577 in the RVU calculator

Payment rules and modifiers for 75577

The CMS indicators that decide how 75577 is paid alongside other services.

CMS payment indicators · 75577

Coronary plaque analysis, CTA-based quantification

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
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

75577 without 26 · national office

$1,012.05

Coronary plaque analysis, CTA-based quantification

75577-26 · Professional component

$41.42

Pays only the interpretation and report.

When to use modifier 26

How 75577 has changed in New Mexico

75577 · Office / nonfacility

$930.88

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

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

    No ratechanged to$930.88

    Held through RVU26B, RVU26C, RVU26D.

  2. 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, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1, RVU18B, RVU18C, RVU18D, RVU19A, RVU19B, RVU19C, RVU19D, RVU20A, RVU20B, RVU20C, RVU20D, RVU21A, RVU21B, RVU21C, RVU21D, RVU22A, RVU22B, RVU22C, RVU22D, RVU23A, RVU23B, RVU23C, RVU23D, RVU24A, RVU24AR, RVU24B, RVU24C, RVU24D, RVU25A, RVU25B, RVU25C, RVU25D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$930.88Not available in this settingRVU26D
2026-07-01$930.88Not available in this settingRVU26C
2026-04-01$930.88Not available in this settingRVU26B
2026-01-01$930.88Not available in this settingRVU26A
2025-10-01Not in this releaseNot in this releaseRVU25D
2025-07-01Not in this releaseNot in this releaseRVU25C
2025-04-01Not in this releaseNot in this releaseRVU25B
2025-01-01Not in this releaseNot in this releaseRVU25A
2024-10-01Not in this releaseNot in this releaseRVU24D
2024-07-01Not in this releaseNot in this releaseRVU24C
2024-04-01Not in this releaseNot in this releaseRVU24B
2024-03-09Not in this releaseNot in this releaseRVU24AR
2024-01-01Not in this releaseNot in this releaseRVU24A
2023-10-01Not in this releaseNot in this releaseRVU23D
2023-07-01Not in this releaseNot in this releaseRVU23C
2023-04-01Not in this releaseNot in this releaseRVU23B
2023-01-01Not in this releaseNot in this releaseRVU23A
2022-10-01Not in this releaseNot in this releaseRVU22D
2022-07-01Not in this releaseNot in this releaseRVU22C
2022-04-01Not in this releaseNot in this releaseRVU22B
2022-01-01Not in this releaseNot in this releaseRVU22A
2021-10-01Not in this releaseNot in this releaseRVU21D
2021-07-01Not in this releaseNot in this releaseRVU21C
2021-04-01Not in this releaseNot in this releaseRVU21B
2021-01-01Not in this releaseNot in this releaseRVU21A
2020-10-01Not in this releaseNot in this releaseRVU20D
2020-07-01Not in this releaseNot in this releaseRVU20C
2020-04-01Not in this releaseNot in this releaseRVU20B
2020-01-01Not in this releaseNot in this releaseRVU20A
2019-10-01Not in this releaseNot in this releaseRVU19D
2019-07-01Not in this releaseNot in this releaseRVU19C
2019-04-01Not in this releaseNot in this releaseRVU19B
2019-01-01Not in this releaseNot in this releaseRVU19A
2018-10-01Not in this releaseNot in this releaseRVU18D
2018-07-01Not in this releaseNot in this releaseRVU18C
2018-04-01Not in this releaseNot in this releaseRVU18B
2018-01-01Not in this releaseNot in this releaseRVU18AR1
2017-10-01Not in this releaseNot in this releaseRVU17D
2017-07-01Not in this releaseNot in this releaseRVU17C
2017-04-01Not in this releaseNot in this releaseRVU17B
2017-01-01Not in this releaseNot in this releaseRVU17A
2016-10-01Not in this releaseNot in this releaseRVU16D
2016-07-01Not in this releaseNot in this releaseRVU16C
2016-04-01Not in this releaseNot in this releaseRVU16B
2016-01-01Not in this releaseNot in this releaseRVU16A
2015-10-01Not in this releaseNot in this releaseRVU15D
2015-07-01Not in this releaseNot in this releaseRVU15C
2015-04-01Not in this releaseNot in this releaseRVU15B
2015-01-01Not in this releaseNot in this releaseRVU15A
2014-10-01Not in this releaseNot in this releaseRVU14D
2014-07-01Not in this releaseNot in this releaseRVU14C
2014-04-01Not in this releaseNot in this releaseRVU14B
2014-01-01Not in this releaseNot in this releaseRVU14A
2013-10-01Not in this releaseNot in this releaseRVU13D
2013-07-01Not in this releaseNot in this releaseRVU13C
2013-04-01Not in this releaseNot in this releaseRVU13B
2013-01-01Not in this releaseNot in this releaseRVU13AR

Price 75577 for an earlier date of service

Where the New Mexico rate applies

New Mexico is a Medicare payment area, not a city. Our Census mapping connects it to 528 cities and communities in New Mexico. Some span more than one payment area; confirm with the service ZIP.

  • Abeytas
  • Abiquiu
  • Acomita Lake
  • Adelino
  • Agua Fria
  • Alamillo
  • Alamo
  • Alamogordo

Browse all communities in New Mexico

75577 billing questions

How is 75577 different from coronary CTA code 75574?

75574 represents coronary CT angiography; 75577 is the quantitative plaque analysis performed on coronary CTA data. The documentation should support each service reported.

Is 75577 a calcium score?

No. Code 75577 quantifies plaque using coronary CTA data, while 75571 reports a coronary calcium assessment from a noncontrast cardiac CT.

Can the professional and technical portions be billed separately?

Yes. Use modifier 26 for the professional interpretation and report, or modifier TC for the technical portion. Bill without either modifier for the global service.

What documentation supports 75577?

Document the coronary CTA data analyzed, the quantitative plaque findings, and the interpreting physician’s report. The record should show that a plaque analysis was performed, not only a standard CTA interpretation.

Does 75577 replace 75574?

No. The codes represent different services: coronary CTA and quantitative analysis of plaque using CTA data. Report both only when both services were performed and are supported by the record.

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 75577PPRRVU2026_Oct_nonQPP.csv, line 8,495 (RVU26D)
Geographic factors for New MexicoGPCI2026.csv, line 77 (RVU26D)

Open CMS sourceHow we calculate rates

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