CPT code 73721: Lower extremity joint MRI, without contrast2026 Medicare rate & RVUs in Iowa

Noncontrast MRI of a knee, ankle, hip, or other lower extremity joint is reported to evaluate joint injury or disease.

CMS RVU26DEffective Oct 1, 2026One payment locality732.7K Medicare services in 2024

In Iowa, Medicare pays $189.23 for 73721 in the office.

$189.23Office (non-facility)
Not available in this settingHospital or facility
−7.4%vs the national office rate ($204.41)

Check a contract rate as a % of Medicare · 73721 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 73721 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Iowa
  2. What 73721 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 73721 covers

This study images a lower extremity joint, often the knee, ankle, or hip, without intravenous or intra-articular contrast. Orthopedists, sports medicine physicians, and podiatrists commonly order it to evaluate meniscal tears, ACL and collateral ligament injuries, cartilage defects, tendon tears, labral pathology, osteochondral lesions, stress fractures, and avascular necrosis. Studies are performed in hospital outpatient departments and freestanding imaging centers, with a radiologist interpreting the images.

Report the joint studied and its side. For corresponding joints imaged bilaterally, identify both sides using modifier 50 or separate RT and LT lines according to the billing format; Medicare pays each side separately at 100%. Modifier TC identifies the equipment, staff, and other technical work, while modifier 26 identifies the interpretation and signed report. Billing without either modifier represents the global service. When multiple diagnostic imaging studies are performed in the same session, the diagnostic imaging multiple procedure reduction applies to the technical and professional components. Documentation should identify the joint, side, indication, sequences, and absence of contrast.

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 Iowa compares for 73721

Across 109 of 109 payment localities, the office rate for 73721 runs from $180.77 in Arkansas to $277.40 in San Benito County, CA. Iowa pays $189.23. The RVUs are the same everywhere; the geographic indexes change the dollars.

73721 in Iowa vs other payment areas
  1. Iowa · this page$189.23
  2. Los Angeles, CA · California$234.00+$44.77
  3. Washington, DC area · District of Columbia$235.14+$45.91
  4. Miami, FL · Florida$215.46+$26.23
  5. Chicago, IL · Illinois$209.40+$20.17
  6. Manhattan, NY · New York$234.48+$45.25
  7. Alaska · Alaska$235.33+$46.10

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

Every other payment area

73721 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$183.44—
ArkansasArkansas$180.77—
ArizonaArizona$199.10—
Bakersfield, CACalifornia$219.18—
Chico, CACalifornia$218.87—
El Centro, CACalifornia$218.89—
Fresno, CACalifornia$218.87—
Hanford, CACalifornia$218.87—

73721 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.

$180.77

$248.14

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

View every state and territory as a table
73721 office rate range by state
State / territoryOffice rate rangeLocalities
AK$235.331
AL$183.441
AR$180.771
AZ$199.101
CA$218.87–$277.4029
CO$214.351
CT$218.041
DC$235.141
DE$202.441
FL$199.00–$215.463
GA$188.00–$207.672
GU$224.701
HI$224.701
IA$189.231
ID$190.241
IL$192.42–$211.294
IN$191.381
KS$187.821
KY$186.701
LA$186.20–$195.542
MA$212.85–$236.412
MD$206.50–$235.143
ME$190.69–$201.892
MI$191.11–$200.972
MN$206.861
MO$182.63–$196.873
MS$181.761
MT$204.411
NC$192.791
ND$202.631
NE$190.431
NH$210.491
NJ$220.94–$232.572
NM$191.961
NV$204.071
NY$195.65–$239.545
OH$190.751
OK$186.911
OR$202.89–$221.812
PA$191.35–$212.242
PR$206.101
RI$210.121
SC$192.011
SD$202.421
TN$188.711
TX$190.04–$213.288
UT$194.671
VA$200.86–$235.142
VI$206.101
VT$201.361
WA$212.61–$241.782
WI$195.731
WV$185.101
WY$203.631

See 73721 in every payment locality

How the 73721 rate is calculated

Each of 73721’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 · 73721

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.32

1.32 RVUs× 1.000 GPCI

Practice expense4.71

4.71 RVUs× 1.000 GPCI

Malpractice0.09

0.09 RVUs× 1.000 GPCI

Adjusted RVUs

6.1200

Conversion factor

$33.4009

Medicare rate

$204.41

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

The exact Iowa inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

8,276

Code
73721
Physician work
1.32
Practice expense
4.71
Malpractice
0.09

GPCI2026.csv

53

Locality
Iowa
Physician work
1.000
Practice expense
0.915
Malpractice
0.397
Office calculation for 73721 in Iowa
ComponentRVULocality factorAdjusted
Physician work1.32× 1.0001.3200
Practice expense4.71× 0.9154.3097
Malpractice0.09× 0.3970.0357
Total RVUs5.6654
Conversion factor× 33.4009

Office rate, Iowa$189.23

Office: (1.32 × 1 + 4.71 × 0.915 + 0.09 × 0.397) × $33.4009 = $189.23

Open 73721 in the RVU calculator

Payment rules and modifiers for 73721

The CMS indicators that decide how 73721 is paid alongside other services.

CMS payment indicators · 73721

Lower extremity joint 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)3Each side paid at 100% (no 150% cap).
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

73721 without 26 · national office

$204.41

Lower extremity joint MRI, without contrast

73721-26 · Professional component

$62.79

Pays only the interpretation and report.

When to use modifier 26

How 73721 has changed in Iowa

73721 · Office / nonfacility

$189.23

Effective 2026-10-01

The base rate is $3.95 higher than on 2025-10-01, moving from $185.28 to $189.23 (2.1%).

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

    $185.28changed to$189.23

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.35 changed to 1.32
    • Practice expense RVU 4.75 changed to 4.71
    • Practice expense GPCI 0.913 changed to 0.915
    • Malpractice GPCI 0.457 changed to 0.397

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $192.49changed to$185.28

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 4.81 changed to 4.75

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $189.35changed to$192.49

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $197.27changed to$189.35

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 4.87 changed to 4.81
    • Practice expense GPCI 0.910 changed to 0.913
    • Malpractice GPCI 0.441 changed to 0.457
  5. January 1, 2023

    RVU23A

    $201.36changed to$197.27

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 4.88 changed to 4.87
    • Malpractice RVU 0.10 changed to 0.09
    • Practice expense GPCI 0.907 changed to 0.910
    • Malpractice GPCI 0.425 changed to 0.441

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $210.01changed to$201.36

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 5.11 changed to 4.88
    • Malpractice RVU 0.08 changed to 0.10

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $213.94changed to$210.01

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 5.01 changed to 5.11
    • Malpractice GPCI 0.424 changed to 0.425

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $217.54changed to$213.94

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 5.12 changed to 5.01
    • Malpractice RVU 0.10 changed to 0.08
    • Malpractice GPCI 0.423 changed to 0.424

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $222.52changed to$217.54

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 5.28 changed to 5.12

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $219.72changed to$222.52

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 5.24 changed to 5.28
    • Practice expense GPCI 0.902 changed to 0.907
    • Malpractice GPCI 0.458 changed to 0.423

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $216.92changed to$219.72

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 5.20 changed to 5.24
    • Practice expense GPCI 0.896 changed to 0.902
    • Malpractice GPCI 0.493 changed to 0.458

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $216.06changed to$216.92

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 5.16 changed to 5.20
    • Malpractice RVU 0.08 changed to 0.10

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $214.99changed to$216.06

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $233.33changed to$214.99

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 5.73 changed to 5.16
    • Malpractice RVU 0.11 changed to 0.08
    • Practice expense GPCI 0.892 changed to 0.896
    • Malpractice GPCI 0.475 changed to 0.493

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $253.76changed to$233.33

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 6.83 changed to 5.73
    • Practice expense GPCI 0.887 changed to 0.892
    • Malpractice GPCI 0.456 changed to 0.475

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $253.76

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$189.23Not available in this settingRVU26D
2026-07-01$189.23Not available in this settingRVU26C
2026-04-01$189.23Not available in this settingRVU26B
2026-01-01$189.23Not available in this settingRVU26A
2025-10-01$185.28Not available in this settingRVU25D
2025-07-01$185.28Not available in this settingRVU25C
2025-04-01$185.28Not available in this settingRVU25B
2025-01-01$185.28Not available in this settingRVU25A
2024-10-01$192.49Not available in this settingRVU24D
2024-07-01$192.49Not available in this settingRVU24C
2024-04-01$192.49Not available in this settingRVU24B
2024-03-09$192.49Not available in this settingRVU24AR
2024-01-01$189.35Not available in this settingRVU24A
2023-10-01$197.27Not available in this settingRVU23D
2023-07-01$197.27Not available in this settingRVU23C
2023-04-01$197.27Not available in this settingRVU23B
2023-01-01$197.27Not available in this settingRVU23A
2022-10-01$201.36Not available in this settingRVU22D
2022-07-01$201.36Not available in this settingRVU22C
2022-04-01$201.36Not available in this settingRVU22B
2022-01-01$201.36Not available in this settingRVU22A
2021-10-01$210.01Not available in this settingRVU21D
2021-07-01$210.01Not available in this settingRVU21C
2021-04-01$210.01Not available in this settingRVU21B
2021-01-01$210.01Not available in this settingRVU21A
2020-10-01$213.94Not available in this settingRVU20D
2020-07-01$213.94Not available in this settingRVU20C
2020-04-01$213.94Not available in this settingRVU20B
2020-01-01$213.94Not available in this settingRVU20A
2019-10-01$217.54Not available in this settingRVU19D
2019-07-01$217.54Not available in this settingRVU19C
2019-04-01$217.54Not available in this settingRVU19B
2019-01-01$217.54Not available in this settingRVU19A
2018-10-01$222.52Not available in this settingRVU18D
2018-07-01$222.52Not available in this settingRVU18C
2018-04-01$222.52Not available in this settingRVU18B
2018-01-01$222.52Not available in this settingRVU18AR1
2017-10-01$219.72Not available in this settingRVU17D
2017-07-01$219.72Not available in this settingRVU17C
2017-04-01$219.72Not available in this settingRVU17B
2017-01-01$219.72Not available in this settingRVU17A
2016-10-01$216.92Not available in this settingRVU16D
2016-07-01$216.92Not available in this settingRVU16C
2016-04-01$216.92Not available in this settingRVU16B
2016-01-01$216.92Not available in this settingRVU16A
2015-10-01$216.06Not available in this settingRVU15D
2015-07-01$216.06Not available in this settingRVU15C
2015-04-01$214.99Not available in this settingRVU15B
2015-01-01$214.99Not available in this settingRVU15A
2014-10-01$233.33Not available in this settingRVU14D
2014-07-01$233.33Not available in this settingRVU14C
2014-04-01$233.33Not available in this settingRVU14B
2014-01-01$233.33Not available in this settingRVU14A
2013-10-01$253.76Not available in this settingRVU13D
2013-07-01$253.76Not available in this settingRVU13C
2013-04-01$253.76Not available in this settingRVU13B
2013-01-01$253.76Not available in this settingRVU13AR

Price 73721 for an earlier date of service

Where the Iowa rate applies

Iowa is a Medicare payment area, not a city. Our Census mapping connects it to 1026 cities and communities in Iowa. Some span more than one payment area; confirm with the service ZIP.

  • Ackley
  • Ackworth
  • Adair
  • Adel
  • Afton
  • Agency
  • Ainsworth
  • Akron

Browse all communities in Iowa

73721 billing questions

When is 73721 chosen instead of 73718?

Use 73721 when the study targets a joint, such as the knee, ankle, or hip. Use 73718 when it targets a non-joint lower extremity region, such as a thigh or calf soft tissue mass or a long bone shaft.

How are bilateral knee MRIs reported?

Identify the right and left knee using modifier 50 or separate RT and LT lines according to the billing format. Medicare pays each side separately at 100%.

Can 73721 be reported for an MR arthrogram?

No. When contrast is injected into the joint, report the joint MRI with contrast using 73722; report the appropriate joint injection service separately when it is performed and documented.

Which modifier does a reading radiologist use?

A radiologist who only interprets the study reports modifier 26. The entity furnishing the technical study reports modifier TC, and an entity furnishing both components bills without either modifier.

What happens when a knee and an ankle MRI are done the same day?

Report each joint studied with its side. If the studies are performed in the same session, the diagnostic imaging multiple procedure reduction applies to their technical and professional components.

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 73721PPRRVU2026_Oct_nonQPP.csv, line 8,276 (RVU26D)
Geographic factors for IowaGPCI2026.csv, line 53 (RVU26D)

Open CMS sourceHow we calculate rates

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