Billing code 73565: Knee X-rayMedicare rate & RVUs

Bilateral standing knee radiography captures weight-bearing alignment and joint spaces in both knees, commonly during evaluation of degenerative knee symptoms.

CMS RVU26DEffective Oct 1, 2026109 payment localities85.6K Medicare services in 2024

Medicare pays $42.09 for 73565 nationally in the office. Local office rates run $36.67–$58.31.

Medicare rate · 73565

Knee X-ray

Swap in your local Medicare rate.

Work RVUs
0.16
Total RVUs
1.26
Global days
XXX

National rate · 2026

$42.09

Office setting, before claim adjustments.

See every locality for 73565 → · Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

On this page 10 sections
  1. Medicare rate
  2. What 73565 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 73565 covers

This study obtains a weight-bearing frontal image of both knees, allowing comparison of alignment and joint-space appearance under load. It is commonly ordered when evaluating knee osteoarthritis or other conditions in which standing alignment or joint-space narrowing matters. A radiologic technologist positions the patient for the image; a radiologist or other qualified physician interprets it. The service is performed in imaging departments, hospitals, and outpatient imaging settings.

Report the code for the bilateral standing AP study, rather than selecting a unilateral knee code based only on the number of images. The order and imaging record should support bilateral imaging in the standing position, and the interpretation should document the findings. The code is already priced as bilateral, so modifier 50 does not increase payment. The professional interpretation may be billed with modifier 26, the equipment and staff portion with modifier TC, or the global service without a modifier.

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.

Where 73565 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 payment localities

$36.67 to $58.31

$36.67$47.49$58.31
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

73565 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$37.29Unavailable
Alaska*$46.80Unavailable
Arizona$40.87Unavailable
Arkansas$36.67Unavailable
Atlanta$42.81Unavailable
Austin$44.11Unavailable
Bakersfield$45.39Unavailable
Baltimore/Surr. Cntys$44.96Unavailable
Beaumont$38.79Unavailable
Brazoria$41.66Unavailable

73565 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.

$36.67

$51.82

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

View every state and territory as a table
73565 office rate range by state
State / territoryOffice rate rangeLocalities
AK$46.801
AL$37.291
AR$36.671
AZ$40.871
CA$45.33–$58.3129
CO$44.311
CT$45.111
DC$48.871
DE$41.611
FL$40.83–$44.593
GA$38.32–$42.812
GU$46.751
HI$46.751
IA$38.621
ID$38.851
IL$39.32–$43.614
IN$39.111
KS$38.291
KY$38.021
LA$37.91–$40.052
MA$43.95–$49.232
MD$42.52–$48.873
ME$38.95–$41.512
MI$39.03–$41.282
MN$42.661
MO$37.09–$40.353
MS$36.901
MT$42.081
NC$39.431
ND$41.691
NE$38.891
NH$43.481
NJ$45.68–$48.242
NM$39.231
NV$42.011
NY$40.08–$49.825
OH$38.951
OK$38.081
OR$41.74–$46.002
PA$39.09–$43.792
PR$42.471
RI$43.301
SC$39.241
SD$41.641
TN$38.491
TX$38.79–$44.118
UT$39.851
VA$41.28–$48.872
VI$42.471
VT$41.391
WA$43.91–$50.422
WI$40.111
WV$37.651
WY$41.911

How the 73565 rate is calculated

Each of 73565’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 · 73565

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 0.16Practice expense 1.08Malpractice 0.02

1.2600 adjusted RVUs×$33.4009 conversion factor=$42.09

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 73565

The CMS indicators that decide how 73565 is paid alongside other services.

CMS payment indicators · 73565

Knee X-ray

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)2Already bilateral by definition: paid once at 100%.
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

73565 without 26 · national office

$42.09

Knee X-ray

73565-26 · Professional component

$8.35

Pays only the interpretation and report.

When to use modifier 26

73565 compared with similar codes

Compare codes

73565 vs 73560 vs 73562 vs 73564: national Medicare rates

Swap in your local Medicare rate.

  • 73565
    Knee X-ray · 0.16 wRVU
    $42.09
  • 73560
    Knee X-ray · 0.16 wRVU
    $34.40−$7.69
  • 73562
    Knee X-ray · 0.18 wRVU
    $42.42+$0.33
  • 73564
    Knee X-ray · 0.21 wRVU
    $49.43+$7.34

How to choose

73560Knee X-ray
73560 represents a unilateral knee examination with one or two views. Choose 73565 for the bilateral standing AP study.
73562Knee X-ray
73562 is for a unilateral three-view knee examination. It does not describe the bilateral standing AP study represented by 73565.
73564Knee X-ray
73564 represents a unilateral knee examination with four or more views. Use 73565 for bilateral standing AP imaging, not a unilateral multi-view series.

73565 billing questions

When should this code be chosen instead of a unilateral knee X-ray code?

Use this code for the bilateral standing AP knee study. Codes 73560, 73562, and 73564 describe unilateral knee examinations selected by the number of views.

Should modifier 50 be appended for imaging both knees?

The code is already priced as bilateral, and modifier 50 does not increase payment.

How are the professional and technical services billed?

Use modifier 26 for the interpretation and modifier TC for the equipment and staff portion. Billing without either modifier represents the global service.

What documentation supports reporting this code?

The order and imaging record should show that both knees were imaged in the standing position. The interpretation should describe the findings from the bilateral study.

Can this code be reported for a three-view knee examination?

No. This code describes a bilateral standing AP study; a unilateral three-view knee examination is reported with 73562.

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 73565PPRRVU2026_Oct_nonQPP.csv, line 8,222 (RVU26D)

Open CMS sourceHow we calculate rates

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