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CPT code 78582: Lung scan, ventilation and perfusion2026 Medicare rate & RVUs in Mississippi

Reports paired lung ventilation and perfusion imaging, commonly used to evaluate suspected pulmonary embolism by comparing airflow and blood-flow patterns.

CMS RVU26DEffective Oct 1, 2026One payment locality51.7K Medicare services in 2024

In Mississippi, Medicare pays $254.58 for 78582 in the office.

$254.58Office (non-facility)
Not available in this settingHospital or facility
−12.4%vs the national office rate ($290.59)

Check a contract rate as a % of Medicare · 78582 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 78582 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Mississippi
  2. What 78582 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 78582 covers

A nuclear medicine team acquires images of air distribution after the patient inhales a radiotracer and blood flow after an intravenous radiotracer. A nuclear medicine physician interprets the paired patterns, often for evaluation of suspected pulmonary embolism. The study is typically performed in a hospital or outpatient imaging department, with imaging staff handling tracer administration and acquisition.

Report 78582 when both ventilation and perfusion imaging are performed as a paired lung study; ventilation-only or perfusion-only imaging is reported with a different code. Documentation should support both portions of the examination and include the resulting interpretation. CMS recognizes professional and technical components: report modifier 26 for the interpretation, modifier TC for the equipment and staff, or no component modifier for 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 Mississippi compares for 78582

Across 109 of 109 payment localities, the office rate for 78582 runs from $253.25 in Arkansas to $404.17 in San Benito County, CA. Mississippi pays $254.58. The RVUs are the same everywhere; the geographic indexes change the dollars.

78582 in Mississippi vs other payment areas
  1. Mississippi · this page$254.58
  2. Los Angeles, CA · California$336.93+$82.35
  3. Washington, DC area · District of Columbia$337.77+$83.19
  4. Miami, FL · Florida$306.54+$51.96
  5. Chicago, IL · Illinois$296.85+$42.27
  6. Manhattan, NY · New York$335.82+$81.24
  7. Alaska · Alaska$322.70+$68.12

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

Every other payment area

78582 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$257.47—
ArkansasArkansas$253.25—
ArizonaArizona$282.24—
Bakersfield, CACalifornia$314.02—
Chico, CACalifornia$313.68—
El Centro, CACalifornia$313.70—
Fresno, CACalifornia$313.68—
Hanford, CACalifornia$313.68—

78582 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.

$253.25

$358.93

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

View every state and territory as a table
78582 office rate range by state
State / territoryOffice rate rangeLocalities
AK$322.701
AL$257.471
AR$253.251
AZ$282.241
CA$313.68–$404.1729
CO$306.341
CT$311.471
DC$337.771
DE$287.361
FL$281.34–$306.543
GA$264.06–$295.472
GU$323.591
HI$323.591
IA$266.941
ID$268.481
IL$270.72–$300.484
IN$270.291
KS$264.561
KY$262.281
LA$261.43–$276.212
MA$303.76–$340.532
MD$293.66–$337.773
ME$269.02–$286.962
MI$269.12–$284.282
MN$295.311
MO$255.69–$278.493
MS$254.581
MT$290.581
NC$272.371
ND$288.411
NE$268.881
NH$300.471
NJ$315.53–$333.372
NM$270.401
NV$290.231
NY$276.89–$343.625
OH$268.681
OK$262.791
OR$288.49–$318.192
PA$269.71–$302.262
PR$293.311
RI$299.171
SC$270.871
SD$288.151
TN$265.941
TX$267.63–$304.868
UT$275.081
VA$285.22–$337.772
VI$293.311
VT$286.251
WA$303.53–$348.902
WI$277.451
WV$259.141
WY$289.631

See 78582 in every payment locality

How the 78582 rate is calculated

Each of 78582’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 · 78582

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.04

1.04 RVUs× 1.000 GPCI

Practice expense7.55

7.55 RVUs× 1.000 GPCI

Malpractice0.11

0.11 RVUs× 1.000 GPCI

Adjusted RVUs

8.7000

Conversion factor

$33.4009

Medicare rate

$290.59

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

The exact Mississippi inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

9,431

Code
78582
Physician work
1.04
Practice expense
7.55
Malpractice
0.11

GPCI2026.csv

67

Locality
Mississippi
Physician work
1.000
Practice expense
0.861
Malpractice
0.739
Office calculation for 78582 in Mississippi
ComponentRVULocality factorAdjusted
Physician work1.04× 1.0001.0400
Practice expense7.55× 0.8616.5005
Malpractice0.11× 0.7390.0813
Total RVUs7.6218
Conversion factor× 33.4009

Office rate, Mississippi$254.58

Office: (1.04 × 1 + 7.55 × 0.861 + 0.11 × 0.739) × $33.4009 = $254.58

Open 78582 in the RVU calculator

Payment rules and modifiers for 78582

The CMS indicators that decide how 78582 is paid alongside other services.

CMS payment indicators · 78582

Lung scan, ventilation and perfusion

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

78582 without 26 · national office

$290.59

Lung scan, ventilation and perfusion

78582-26 · Professional component

$48.43

Pays only the interpretation and report.

When to use modifier 26

Codes related to 78582

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

Codes related to 78582
CodeHow it relatesOffice range, Mississippi
Same family
78579Lung scan, ventilation onlyVentilation-only lung imaging; use when perfusion imaging is not part of the study.$145.20
78580Lung perfusion scan, perfusion onlyPerfusion-only lung imaging; use when ventilation imaging is not part of the study.$183.33
Used instead
78597Lung perfusion, differential quantificationDifferential perfusion imaging for quantitative assessment rather than paired routine ventilation and perfusion imaging.$158.15
78598Lung V/Q imaging, differential ventilation and perfusionDifferential ventilation and perfusion imaging for quantitative lung-function assessment.$231.54

How 78582 has changed in Mississippi

78582 · Office / nonfacility

$254.58

Effective 2026-10-01

The base rate is $4.67 higher than on 2025-10-01, moving from $249.91 to $254.58 (1.9%).

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

    $249.91changed to$254.58

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.07 changed to 1.04
    • Practice expense RVU 7.74 changed to 7.55
    • Malpractice RVU 0.08 changed to 0.11
    • Practice expense GPCI 0.852 changed to 0.861
    • Malpractice GPCI 0.768 changed to 0.739

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $263.08changed to$249.91

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 7.93 changed to 7.74
    • Malpractice RVU 0.10 changed to 0.08

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $258.78changed to$263.08

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $270.99changed to$258.78

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 8.11 changed to 7.93
    • Malpractice RVU 0.08 changed to 0.10
    • Practice expense GPCI 0.847 changed to 0.852
    • Malpractice GPCI 0.720 changed to 0.768

  5. January 1, 2023

    RVU23A

    $279.51changed to$270.99

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 8.25 changed to 8.11
    • Malpractice RVU 0.09 changed to 0.08
    • Practice expense GPCI 0.842 changed to 0.847
    • Malpractice GPCI 0.671 changed to 0.720

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $292.99changed to$279.51

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 8.63 changed to 8.25

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $299.07changed to$292.99

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 8.37 changed to 8.63
    • Malpractice RVU 0.10 changed to 0.09
    • Practice expense GPCI 0.856 changed to 0.842
    • Malpractice GPCI 0.521 changed to 0.671

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $305.46changed to$299.07

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 8.47 changed to 8.37
    • Practice expense GPCI 0.870 changed to 0.856
    • Malpractice GPCI 0.370 changed to 0.521

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $310.14changed to$305.46

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 8.63 changed to 8.47

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $308.38changed to$310.14

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 8.62 changed to 8.63
    • Practice expense GPCI 0.867 changed to 0.870
    • Malpractice GPCI 0.492 changed to 0.370

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $306.55changed to$308.38

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 8.60 changed to 8.62
    • Practice expense GPCI 0.864 changed to 0.867
    • Malpractice GPCI 0.613 changed to 0.492

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $306.28changed to$306.55

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 8.57 changed to 8.60
    • Malpractice RVU 0.08 changed to 0.10

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $304.76changed to$306.28

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $301.21changed to$304.76

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 8.42 changed to 8.57
    • Practice expense GPCI 0.865 changed to 0.864
    • Malpractice GPCI 0.687 changed to 0.613

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    No ratechanged to$301.21

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$254.58Not available in this settingRVU26D
2026-07-01$254.58Not available in this settingRVU26C
2026-04-01$254.58Not available in this settingRVU26B
2026-01-01$254.58Not available in this settingRVU26A
2025-10-01$249.91Not available in this settingRVU25D
2025-07-01$249.91Not available in this settingRVU25C
2025-04-01$249.91Not available in this settingRVU25B
2025-01-01$249.91Not available in this settingRVU25A
2024-10-01$263.08Not available in this settingRVU24D
2024-07-01$263.08Not available in this settingRVU24C
2024-04-01$263.08Not available in this settingRVU24B
2024-03-09$263.08Not available in this settingRVU24AR
2024-01-01$258.78Not available in this settingRVU24A
2023-10-01$270.99Not available in this settingRVU23D
2023-07-01$270.99Not available in this settingRVU23C
2023-04-01$270.99Not available in this settingRVU23B
2023-01-01$270.99Not available in this settingRVU23A
2022-10-01$279.51Not available in this settingRVU22D
2022-07-01$279.51Not available in this settingRVU22C
2022-04-01$279.51Not available in this settingRVU22B
2022-01-01$279.51Not available in this settingRVU22A
2021-10-01$292.99Not available in this settingRVU21D
2021-07-01$292.99Not available in this settingRVU21C
2021-04-01$292.99Not available in this settingRVU21B
2021-01-01$292.99Not available in this settingRVU21A
2020-10-01$299.07Not available in this settingRVU20D
2020-07-01$299.07Not available in this settingRVU20C
2020-04-01$299.07Not available in this settingRVU20B
2020-01-01$299.07Not available in this settingRVU20A
2019-10-01$305.46Not available in this settingRVU19D
2019-07-01$305.46Not available in this settingRVU19C
2019-04-01$305.46Not available in this settingRVU19B
2019-01-01$305.46Not available in this settingRVU19A
2018-10-01$310.14Not available in this settingRVU18D
2018-07-01$310.14Not available in this settingRVU18C
2018-04-01$310.14Not available in this settingRVU18B
2018-01-01$310.14Not available in this settingRVU18AR1
2017-10-01$308.38Not available in this settingRVU17D
2017-07-01$308.38Not available in this settingRVU17C
2017-04-01$308.38Not available in this settingRVU17B
2017-01-01$308.38Not available in this settingRVU17A
2016-10-01$306.55Not available in this settingRVU16D
2016-07-01$306.55Not available in this settingRVU16C
2016-04-01$306.55Not available in this settingRVU16B
2016-01-01$306.55Not available in this settingRVU16A
2015-10-01$306.28Not available in this settingRVU15D
2015-07-01$306.28Not available in this settingRVU15C
2015-04-01$304.76Not available in this settingRVU15B
2015-01-01$304.76Not available in this settingRVU15A
2014-10-01$301.21Not available in this settingRVU14D
2014-07-01$301.21Not available in this settingRVU14C
2014-04-01$301.21Not available in this settingRVU14B
2014-01-01$301.21Not available in this settingRVU14A
2013-10-01Additional calculation requiredNot available in this settingRVU13D
2013-07-01Additional calculation requiredNot available in this settingRVU13C
2013-04-01Additional calculation requiredNot available in this settingRVU13B
2013-01-01Additional calculation requiredNot available in this settingRVU13AR

Price 78582 for an earlier date of service

Where the Mississippi rate applies

Mississippi is a Medicare payment area, not a city. Our Census mapping connects it to 427 cities and communities in Mississippi. Some span more than one payment area; confirm with the service ZIP.

  • Abbeville
  • Aberdeen
  • Ackerman
  • Agricola
  • Alcorn State University
  • Algoma
  • Alligator
  • Amory

Browse all communities in Mississippi

78582 billing questions

When should 78582 be chosen over 78579 or 78580?

Use 78582 when the examination includes both ventilation and perfusion imaging. Code 78579 is for ventilation imaging alone, and 78580 is for perfusion imaging alone.

How are the professional and technical services reported?

Use modifier 26 for the physician's interpretation and modifier TC for the technical service. Without either modifier, the code represents the global service.

What documentation supports reporting 78582?

The record should show that both ventilation and perfusion images were acquired and include the physician's interpretation of the study.

Is this the same as differential lung imaging?

No. 78582 reports paired ventilation and perfusion imaging; differential codes address quantitative assessment of lung-function distribution.

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 78582PPRRVU2026_Oct_nonQPP.csv, line 9,431 (RVU26D)
Geographic factors for MississippiGPCI2026.csv, line 67 (RVU26D)

Open CMS sourceHow we calculate rates

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