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CPT code 78580: Lung perfusion scan, perfusion only2026 Medicare rate & RVUs in New Mexico

Reports nuclear medicine imaging of pulmonary blood flow when a perfusion-only lung study is performed, including evaluation for suspected pulmonary embolism.

CMS RVU26DEffective Oct 1, 2026One payment locality31.4K Medicare services in 2024

In New Mexico, Medicare pays $194.80 for 78580 in the office.

$194.80Office (non-facility)
Not available in this settingHospital or facility
−7.0%vs the national office rate ($209.42)

Check a contract rate as a % of Medicare · 78580 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 78580 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in New Mexico
  2. What 78580 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 78580 covers

This nuclear medicine study maps blood flow through the lungs after intravenous administration of radiolabeled particles. Gamma-camera images show how perfusion is distributed across the lungs. Common reasons include suspected pulmonary embolism, assessment of pulmonary vascular perfusion, and evaluation of functioning lung before selected thoracic surgery. A nuclear medicine technologist acquires the images, which a radiologist or nuclear medicine physician interprets in a hospital or outpatient imaging setting.

Report 78580 for perfusion imaging alone. When ventilation and perfusion imaging are both performed, 78582 describes the combined examination. Documentation should support the clinical indication, radiopharmaceutical administration, images obtained, and interpretation. The service has separately priced professional and technical components: modifier 26 identifies interpretation, modifier TC identifies equipment and staff, and billing without either modifier represents the global service.

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 78580

Across 109 of 109 payment localities, the office rate for 78580 runs from $182.37 in Arkansas to $291.58 in San Benito County, CA. New Mexico pays $194.80. The RVUs are the same everywhere; the geographic indexes change the dollars.

78580 in New Mexico vs other payment areas
  1. New Mexico · this page$194.80
  2. Los Angeles, CA · California$242.95+$48.15
  3. Washington, DC area · District of Columbia$243.55+$48.75
  4. Miami, FL · Florida$221.00+$26.20
  5. Chicago, IL · Illinois$213.97+$19.17
  6. Manhattan, NY · New York$242.13+$47.33
  7. Alaska · Alaska$232.12+$37.32

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

Every other payment area

78580 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$185.43—
ArkansasArkansas$182.37—
ArizonaArizona$203.38—
Bakersfield, CACalifornia$226.38—
Chico, CACalifornia$226.13—
El Centro, CACalifornia$226.15—
Fresno, CACalifornia$226.13—
Hanford, CACalifornia$226.13—

78580 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.

$182.37

$258.86

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

View every state and territory as a table
78580 office rate range by state
State / territoryOffice rate rangeLocalities
AK$232.121
AL$185.431
AR$182.371
AZ$203.381
CA$226.13–$291.5829
CO$220.821
CT$224.531
DC$243.551
DE$207.081
FL$202.73–$221.003
GA$190.20–$212.962
GU$233.331
HI$233.331
IA$192.281
ID$193.401
IL$195.03–$216.594
IN$194.711
KS$190.561
KY$188.921
LA$188.30–$199.012
MA$218.95–$245.562
MD$211.64–$243.553
ME$193.80–$206.792
MI$193.87–$204.862
MN$212.841
MO$184.14–$200.663
MS$183.331
MT$209.421
NC$196.221
ND$207.841
NE$193.691
NH$216.581
NJ$227.45–$240.352
NM$194.801
NV$209.161
NY$199.49–$247.785
OH$193.551
OK$189.281
OR$207.90–$229.402
PA$194.30–$217.862
PR$211.391
RI$215.621
SC$195.141
SD$207.651
TN$191.561
TX$192.79–$219.768
UT$198.191
VA$205.53–$243.552
VI$211.391
VT$206.281
WA$218.78–$251.612
WI$199.901
WV$186.641
WY$208.731

See 78580 in every payment locality

How the 78580 rate is calculated

Each of 78580’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 · 78580

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.72

0.72 RVUs× 1.000 GPCI

Practice expense5.47

5.47 RVUs× 1.000 GPCI

Malpractice0.08

0.08 RVUs× 1.000 GPCI

Adjusted RVUs

6.2700

Conversion factor

$33.4009

Medicare rate

$209.42

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

9,428

Code
78580
Physician work
0.72
Practice expense
5.47
Malpractice
0.08

GPCI2026.csv

77

Locality
New Mexico
Physician work
1.000
Practice expense
0.917
Malpractice
1.201
Office calculation for 78580 in New Mexico
ComponentRVULocality factorAdjusted
Physician work0.72× 1.0000.7200
Practice expense5.47× 0.9175.0160
Malpractice0.08× 1.2010.0961
Total RVUs5.8321
Conversion factor× 33.4009

Office rate, New Mexico$194.80

Office: (0.72 × 1 + 5.47 × 0.917 + 0.08 × 1.201) × $33.4009 = $194.80

Open 78580 in the RVU calculator

Payment rules and modifiers for 78580

The CMS indicators that decide how 78580 is paid alongside other services.

CMS payment indicators · 78580

Lung perfusion scan, perfusion only

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

78580 without 26 · national office

$209.42

Lung perfusion scan, perfusion only

78580-26 · Professional component

$33.73

Pays only the interpretation and report.

When to use modifier 26

Codes related to 78580

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

Codes related to 78580
CodeHow it relatesOffice range, New Mexico
Used instead
78582Lung scan, ventilation and perfusionReports the combined lung ventilation and perfusion examination rather than perfusion imaging alone.$270.40
78597Lung perfusion, differential quantificationUsed for quantitative differential pulmonary perfusion imaging.$167.68
78598Lung V/Q imaging, differential ventilation and perfusionReports combined ventilation and perfusion imaging with quantitative differential assessment.$246.04

How 78580 has changed in New Mexico

78580 · Office / nonfacility

$194.80

Effective 2026-10-01

The base rate is $4.24 higher than on 2025-10-01, moving from $190.56 to $194.80 (2.2%).

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

    $190.56changed to$194.80

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.74 changed to 0.72
    • Practice expense RVU 5.57 changed to 5.47
    • Practice expense GPCI 0.908 changed to 0.917
    • Malpractice GPCI 1.172 changed to 1.201

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $199.43changed to$190.56

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 5.68 changed to 5.57

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $196.18changed to$199.43

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $205.53changed to$196.18

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 5.80 changed to 5.68
    • Practice expense GPCI 0.902 changed to 0.908
    • Malpractice GPCI 1.169 changed to 1.172

  5. January 1, 2023

    RVU23A

    $211.16changed to$205.53

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 5.88 changed to 5.80
    • Practice expense GPCI 0.896 changed to 0.902
    • Malpractice GPCI 1.166 changed to 1.169

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $221.04changed to$211.16

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 6.14 changed to 5.88

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $224.95changed to$221.04

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 5.97 changed to 6.14
    • Malpractice RVU 0.06 changed to 0.08
    • Practice expense GPCI 0.908 changed to 0.896
    • Malpractice GPCI 1.207 changed to 1.166

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $230.96changed to$224.95

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 6.06 changed to 5.97
    • Malpractice RVU 0.07 changed to 0.06
    • Practice expense GPCI 0.921 changed to 0.908
    • Malpractice GPCI 1.247 changed to 1.207

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $235.02changed to$230.96

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 6.19 changed to 6.06

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $233.63changed to$235.02

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 6.18 changed to 6.19
    • Practice expense GPCI 0.920 changed to 0.921
    • Malpractice GPCI 1.204 changed to 1.247

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $232.42changed to$233.63

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 6.17 changed to 6.18
    • Practice expense GPCI 0.919 changed to 0.920
    • Malpractice GPCI 1.161 changed to 1.204

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $231.11changed to$232.42

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 6.13 changed to 6.17
    • Malpractice RVU 0.05 changed to 0.07

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $229.96changed to$231.11

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $226.80changed to$229.96

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 6.02 changed to 6.13
    • Malpractice RVU 0.06 changed to 0.05
    • Practice expense GPCI 0.918 changed to 0.919
    • Malpractice GPCI 1.079 changed to 1.161

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $226.36changed to$226.80

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 6.39 changed to 6.02
    • Practice expense GPCI 0.916 changed to 0.918
    • Malpractice GPCI 0.997 changed to 1.079

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $226.36

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$194.80Not available in this settingRVU26D
2026-07-01$194.80Not available in this settingRVU26C
2026-04-01$194.80Not available in this settingRVU26B
2026-01-01$194.80Not available in this settingRVU26A
2025-10-01$190.56Not available in this settingRVU25D
2025-07-01$190.56Not available in this settingRVU25C
2025-04-01$190.56Not available in this settingRVU25B
2025-01-01$190.56Not available in this settingRVU25A
2024-10-01$199.43Not available in this settingRVU24D
2024-07-01$199.43Not available in this settingRVU24C
2024-04-01$199.43Not available in this settingRVU24B
2024-03-09$199.43Not available in this settingRVU24AR
2024-01-01$196.18Not available in this settingRVU24A
2023-10-01$205.53Not available in this settingRVU23D
2023-07-01$205.53Not available in this settingRVU23C
2023-04-01$205.53Not available in this settingRVU23B
2023-01-01$205.53Not available in this settingRVU23A
2022-10-01$211.16Not available in this settingRVU22D
2022-07-01$211.16Not available in this settingRVU22C
2022-04-01$211.16Not available in this settingRVU22B
2022-01-01$211.16Not available in this settingRVU22A
2021-10-01$221.04Not available in this settingRVU21D
2021-07-01$221.04Not available in this settingRVU21C
2021-04-01$221.04Not available in this settingRVU21B
2021-01-01$221.04Not available in this settingRVU21A
2020-10-01$224.95Not available in this settingRVU20D
2020-07-01$224.95Not available in this settingRVU20C
2020-04-01$224.95Not available in this settingRVU20B
2020-01-01$224.95Not available in this settingRVU20A
2019-10-01$230.96Not available in this settingRVU19D
2019-07-01$230.96Not available in this settingRVU19C
2019-04-01$230.96Not available in this settingRVU19B
2019-01-01$230.96Not available in this settingRVU19A
2018-10-01$235.02Not available in this settingRVU18D
2018-07-01$235.02Not available in this settingRVU18C
2018-04-01$235.02Not available in this settingRVU18B
2018-01-01$235.02Not available in this settingRVU18AR1
2017-10-01$233.63Not available in this settingRVU17D
2017-07-01$233.63Not available in this settingRVU17C
2017-04-01$233.63Not available in this settingRVU17B
2017-01-01$233.63Not available in this settingRVU17A
2016-10-01$232.42Not available in this settingRVU16D
2016-07-01$232.42Not available in this settingRVU16C
2016-04-01$232.42Not available in this settingRVU16B
2016-01-01$232.42Not available in this settingRVU16A
2015-10-01$231.11Not available in this settingRVU15D
2015-07-01$231.11Not available in this settingRVU15C
2015-04-01$229.96Not available in this settingRVU15B
2015-01-01$229.96Not available in this settingRVU15A
2014-10-01$226.80Not available in this settingRVU14D
2014-07-01$226.80Not available in this settingRVU14C
2014-04-01$226.80Not available in this settingRVU14B
2014-01-01$226.80Not available in this settingRVU14A
2013-10-01$226.36Not available in this settingRVU13D
2013-07-01$226.36Not available in this settingRVU13C
2013-04-01$226.36Not available in this settingRVU13B
2013-01-01$226.36Not available in this settingRVU13AR

Price 78580 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

78580 billing questions

When should 78580 be reported instead of 78582?

Use 78580 when the examination includes perfusion imaging only. When both ventilation and perfusion imaging are performed, report the combined examination with 78582.

What do modifiers 26 and TC identify?

Modifier 26 identifies the professional interpretation component, and modifier TC identifies the technical component, including equipment and staff. Without either modifier, the claim represents the global service.

Can 78580 be reported with 78579 for a ventilation-perfusion study?

When both ventilation and perfusion imaging are performed as a combined examination, 78582 describes that service. Do not report 78580 as though it represented the entire combined study.

How does 78580 differ from quantitative differential perfusion imaging?

78580 reports perfusion imaging without the quantitative differential study described by 78597. Select the code that matches the service performed and documented.

What documentation supports 78580?

The record should identify the indication, radiopharmaceutical administration, images acquired, and the interpreting clinician's findings. It should also make clear whether the billed service is professional, technical, or global.

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 78580PPRRVU2026_Oct_nonQPP.csv, line 9,428 (RVU26D)
Geographic factors for New MexicoGPCI2026.csv, line 77 (RVU26D)

Open CMS sourceHow we calculate rates

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