CPT code 70551: Brain MRI, without contrast2026 Medicare rate & RVUs in Mississippi

Magnetic resonance imaging of the brain, including the brainstem, performed without contrast for stroke, seizure, cognitive decline, or other neurologic workups.

CMS RVU26DEffective Oct 1, 2026One payment locality1.2M Medicare services in 2024

In Mississippi, Medicare pays $174.51 for 70551 in the office.

$174.51Office (non-facility)
Not available in this settingHospital or facility
−10.7%vs the national office rate ($195.40)

Check a contract rate as a % of Medicare · 70551 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 70551 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Mississippi
  2. What 70551 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 70551 covers

This study images the cerebral hemispheres, posterior fossa, and brainstem using noncontrast sequences such as T1, T2, FLAIR, diffusion-weighted, and susceptibility imaging. It is ordered for suspected acute stroke, new seizures, cognitive decline, red-flag headache, and follow-up of known structural lesions. Focused noncontrast examinations of the internal auditory canals or pituitary are also reported within the brain MRI series. Technologists acquire the images in hospital radiology departments, emergency settings, and freestanding imaging centers, and a radiologist or neuroradiologist interprets them.

Report 70551 when no contrast is administered for the brain MRI. The report should state the indication, sequences obtained, findings, and impression. Medicare recognizes a professional component (modifier 26) for interpretation and a technical component (modifier TC) for the scanner, staff, and supplies. Billing without a modifier represents the global service when one entity furnishes both components. When eligible diagnostic imaging services are performed for the same patient on the same date, the multiple procedure reduction applies to professional and technical components, with each component ranked separately.

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 70551

Across 109 of 109 payment localities, the office rate for 70551 runs from $173.48 in Arkansas to $262.77 in San Benito County, CA. Mississippi pays $174.51. The RVUs are the same everywhere; the geographic indexes change the dollars.

70551 in Mississippi vs other payment areas
  1. Mississippi · this page$174.51
  2. Los Angeles, CA · California$222.59+$48.08
  3. Washington, DC area · District of Columbia$223.99+$49.48
  4. Miami, FL · Florida$206.40+$31.89
  5. Chicago, IL · Illinois$200.78+$26.27
  6. Manhattan, NY · New York$223.75+$49.24
  7. Alaska · Alaska$227.30+$52.79

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

Every other payment area

70551 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$175.95—
ArkansasArkansas$173.48—
ArizonaArizona$190.45—
Bakersfield, CACalifornia$208.82—
Chico, CACalifornia$208.48—
El Centro, CACalifornia$208.50—
Fresno, CACalifornia$208.48—
Hanford, CACalifornia$208.48—

70551 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.

$173.48

$235.63

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

View every state and territory as a table
70551 office rate range by state
State / territoryOffice rate rangeLocalities
AK$227.301
AL$175.951
AR$173.481
AZ$190.451
CA$208.48–$262.7729
CO$204.451
CT$208.141
DC$223.991
DE$193.571
FL$190.74–$206.403
GA$180.49–$198.512
GU$213.711
HI$213.711
IA$181.141
ID$182.121
IL$184.75–$202.204
IN$183.171
KS$179.921
KY$179.131
LA$178.70–$187.362
MA$203.12–$224.932
MD$197.33–$223.993
ME$182.62–$192.872
MI$183.30–$192.652
MN$197.221
MO$175.44–$188.493
MS$174.511
MT$195.391
NC$184.541
ND$193.411
NE$182.231
NH$200.881
NJ$210.89–$221.692
NM$184.121
NV$194.981
NY$187.21–$228.545
OH$182.901
OK$179.251
OR$193.83–$211.292
PA$183.41–$202.812
PR$196.931
RI$200.701
SC$183.951
SD$193.181
TN$180.751
TX$182.20–$203.468
UT$186.421
VA$191.97–$223.992
VI$196.931
VT$192.311
WA$202.85–$229.872
WI$187.041
WV$177.981
WY$194.531

See 70551 in every payment locality

How the 70551 rate is calculated

Each of 70551’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 · 70551

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.44

1.44 RVUs× 1.000 GPCI

Practice expense4.31

4.31 RVUs× 1.000 GPCI

Malpractice0.10

0.10 RVUs× 1.000 GPCI

Adjusted RVUs

5.8500

Conversion factor

$33.4009

Medicare rate

$195.40

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

7,856

Code
70551
Physician work
1.44
Practice expense
4.31
Malpractice
0.10

GPCI2026.csv

67

Locality
Mississippi
Physician work
1.000
Practice expense
0.861
Malpractice
0.739
Office calculation for 70551 in Mississippi
ComponentRVULocality factorAdjusted
Physician work1.44× 1.0001.4400
Practice expense4.31× 0.8613.7109
Malpractice0.10× 0.7390.0739
Total RVUs5.2248
Conversion factor× 33.4009

Office rate, Mississippi$174.51

Office: (1.44 × 1 + 4.31 × 0.861 + 0.1 × 0.739) × $33.4009 = $174.51

Open 70551 in the RVU calculator

Payment rules and modifiers for 70551

The CMS indicators that decide how 70551 is paid alongside other services.

CMS payment indicators · 70551

Brain MRI, without contrast

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures4Diagnostic imaging reduction applies to the technical component (and professional component) of additional services.
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

70551 without 26 · national office

$195.40

Brain MRI, without contrast

70551-26 · Professional component

$67.80

Pays only the interpretation and report.

When to use modifier 26

How 70551 has changed in Mississippi

70551 · Office / nonfacility

$174.51

Effective 2026-10-01

The base rate is $2.87 higher than on 2025-10-01, moving from $171.64 to $174.51 (1.7%).

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

    $171.64changed to$174.51

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.48 changed to 1.44
    • Practice expense RVU 4.41 changed to 4.31
    • Malpractice RVU 0.09 changed to 0.10
    • 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

    $178.60changed to$171.64

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 4.47 changed to 4.41
    • Malpractice RVU 0.10 changed to 0.09

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $175.68changed to$178.60

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $182.62changed to$175.68

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 4.53 changed to 4.47
    • Practice expense GPCI 0.847 changed to 0.852
    • Malpractice GPCI 0.720 changed to 0.768
  5. January 1, 2023

    RVU23A

    $186.12changed to$182.62

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 4.55 changed to 4.53
    • 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

    $193.36changed to$186.12

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 4.76 changed to 4.55
    • Malpractice RVU 0.08 changed to 0.10

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $200.49changed to$193.36

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 4.70 changed to 4.76
    • Malpractice RVU 0.10 changed to 0.08
    • 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

    $205.35changed to$200.49

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 4.81 changed to 4.70
    • Malpractice RVU 0.09 changed to 0.10
    • 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

    $210.27changed to$205.35

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 4.97 changed to 4.81
    • Malpractice RVU 0.10 changed to 0.09

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $208.73changed to$210.27

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 4.95 changed to 4.97
    • Malpractice RVU 0.09 changed to 0.10
    • 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

    $206.86changed to$208.73

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 4.91 changed to 4.95
    • 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

    $206.45changed to$206.86

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 4.88 changed to 4.91
    • Malpractice RVU 0.08 changed to 0.09

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $205.42changed to$206.45

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $220.70changed to$205.42

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 5.34 changed to 4.88
    • Malpractice RVU 0.09 changed to 0.08
    • 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$220.70

    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$174.51Not available in this settingRVU26D
2026-07-01$174.51Not available in this settingRVU26C
2026-04-01$174.51Not available in this settingRVU26B
2026-01-01$174.51Not available in this settingRVU26A
2025-10-01$171.64Not available in this settingRVU25D
2025-07-01$171.64Not available in this settingRVU25C
2025-04-01$171.64Not available in this settingRVU25B
2025-01-01$171.64Not available in this settingRVU25A
2024-10-01$178.60Not available in this settingRVU24D
2024-07-01$178.60Not available in this settingRVU24C
2024-04-01$178.60Not available in this settingRVU24B
2024-03-09$178.60Not available in this settingRVU24AR
2024-01-01$175.68Not available in this settingRVU24A
2023-10-01$182.62Not available in this settingRVU23D
2023-07-01$182.62Not available in this settingRVU23C
2023-04-01$182.62Not available in this settingRVU23B
2023-01-01$182.62Not available in this settingRVU23A
2022-10-01$186.12Not available in this settingRVU22D
2022-07-01$186.12Not available in this settingRVU22C
2022-04-01$186.12Not available in this settingRVU22B
2022-01-01$186.12Not available in this settingRVU22A
2021-10-01$193.36Not available in this settingRVU21D
2021-07-01$193.36Not available in this settingRVU21C
2021-04-01$193.36Not available in this settingRVU21B
2021-01-01$193.36Not available in this settingRVU21A
2020-10-01$200.49Not available in this settingRVU20D
2020-07-01$200.49Not available in this settingRVU20C
2020-04-01$200.49Not available in this settingRVU20B
2020-01-01$200.49Not available in this settingRVU20A
2019-10-01$205.35Not available in this settingRVU19D
2019-07-01$205.35Not available in this settingRVU19C
2019-04-01$205.35Not available in this settingRVU19B
2019-01-01$205.35Not available in this settingRVU19A
2018-10-01$210.27Not available in this settingRVU18D
2018-07-01$210.27Not available in this settingRVU18C
2018-04-01$210.27Not available in this settingRVU18B
2018-01-01$210.27Not available in this settingRVU18AR1
2017-10-01$208.73Not available in this settingRVU17D
2017-07-01$208.73Not available in this settingRVU17C
2017-04-01$208.73Not available in this settingRVU17B
2017-01-01$208.73Not available in this settingRVU17A
2016-10-01$206.86Not available in this settingRVU16D
2016-07-01$206.86Not available in this settingRVU16C
2016-04-01$206.86Not available in this settingRVU16B
2016-01-01$206.86Not available in this settingRVU16A
2015-10-01$206.45Not available in this settingRVU15D
2015-07-01$206.45Not available in this settingRVU15C
2015-04-01$205.42Not available in this settingRVU15B
2015-01-01$205.42Not available in this settingRVU15A
2014-10-01$220.70Not available in this settingRVU14D
2014-07-01$220.70Not available in this settingRVU14C
2014-04-01$220.70Not available in this settingRVU14B
2014-01-01$220.70Not 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 70551 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

70551 billing questions

If the radiologist adds contrast after reviewing the noncontrast images, can 70551 and 70552 be billed together?

No. When noncontrast brain images are followed by contrast-enhanced brain images in the same session, report 70553 alone.

How is an internal auditory canal or pituitary MRI coded?

These focused studies are reported with the brain MRI codes based on contrast use. A noncontrast internal auditory canal or pituitary study is reported as 70551.

Which modifier does a hospital-based radiologist use?

The reading radiologist appends modifier 26 for the interpretation, and the hospital bills for the technical portion on its facility claim. A freestanding center that furnishes and bills for both components reports the global service without a component modifier.

Can MRA of the head be billed on the same day as 70551?

Yes, when a separate head MRA is performed and documented. Eligible same-day diagnostic imaging services are subject to multiple procedure reductions, with professional and technical components ranked separately.

Is diffusion-weighted imaging billed separately?

No. Diffusion and other standard sequences acquired during the exam are part of the brain MRI and are not separately reportable.

When are 70557-70559 used instead of 70551?

Those codes describe brain MRI performed during an open intracranial procedure. A routine diagnostic brain MRI is selected from 70551-70553 based on contrast use.

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 70551PPRRVU2026_Oct_nonQPP.csv, line 7,856 (RVU26D)
Geographic factors for MississippiGPCI2026.csv, line 67 (RVU26D)

Open CMS sourceHow we calculate rates

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