CPT code 73702: CT scan, without and with contrast2026 Medicare rate & RVUs in Louisiana
Reports CT imaging of a lower extremity when the examination includes both unenhanced images and subsequent contrast-enhanced images in the same study.
Medicare pays $177.12–$186.17 for 73702 in the office in Louisiana, from Rest of Louisiana to New Orleans, LA. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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What 73702 covers
This service covers CT imaging of a lower extremity, such as the foot, ankle, knee, or hip, performed first without contrast and then with contrast during the same examination. Radiologists interpret the images; technologists perform the scan in hospital imaging departments, outpatient imaging centers, and other CT-equipped settings. A combined protocol may be selected when the clinical question calls for both unenhanced and contrast-enhanced views, such as evaluating a suspected soft-tissue infection or mass.
Report this code for the combined examination rather than separately reporting the unenhanced and contrast-enhanced phases as individual CT studies. Documentation should identify the body region and support the need for both phases. The service has professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies the equipment and staff portion, and billing without either modifier represents the global service. When multiple diagnostic imaging services are performed, CMS's multiple-procedure reduction applies to both components. When imaging is performed on both sides, each side is paid separately at 100%.
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 73702 pays more and less in Louisiana
| Payment locality | Office | Facility |
|---|---|---|
| New Orleans, LA | $186.17 | Unavailable |
| Rest of Louisiana | $177.12 | Unavailable |
How the 73702 rate is calculated
Each of 73702’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 · 73702
RVUs × geographic indexes × conversion factor
Work1.19
1.19 RVUs× 1.000 GPCI
Practice expense4.55
4.55 RVUs× 1.000 GPCI
Malpractice0.09
0.09 RVUs× 1.000 GPCI
Adjusted RVUs
5.8300
Conversion factor
$33.4009
Medicare rate
$194.73
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 73702
The CMS indicators that decide how 73702 is paid alongside other services.
CMS payment indicators · 73702
CT scan, without and with contrast
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 4 | Diagnostic imaging reduction applies to the technical component (and professional component) of additional services. |
| Bilateral (modifier 50) | 3 | Each side paid at 100% (no 150% cap). |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
73702 without 26 · national office
$194.73
CT scan, without and with contrast
73702-26 · Professional component
$55.78
Pays only the interpretation and report.
73702 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 73700Extremity CTWithout contrast material
- 73700 describes lower-extremity CT performed without contrast only. Choose 73702 when the examination includes both unenhanced and contrast-enhanced imaging.
- 73701Extremity CTWith contrast
- 73701 is for a contrast-only lower-extremity CT examination. Choose 73702 when unenhanced images are also obtained as part of the same study.
- 73706CT angiographyLower extremity, without and with contrast
- 73706 is CT angiography of the lower extremity, a vascular imaging study. This code describes nonangiographic CT performed with and without contrast.
- 73720MRINon-joint, without and with contrast
- 73720 is MRI of a lower extremity without and with contrast. This code applies when the imaging modality is CT.
73702 billing questions
When should this code be chosen instead of 73700 or 73701?
Use this code when the same lower-extremity CT examination includes images without contrast followed by images with contrast. Use 73700 for an unenhanced-only study and 73701 for a contrast-only study.
Can the unenhanced and contrast phases be billed as separate CT codes?
No. This code represents the combined examination when both phases are performed as one study.
How are the professional and technical portions reported?
Use modifier 26 for the physician's interpretation and report, or modifier TC for the technical service. Without either modifier, the claim represents the global service.
How is bilateral lower-extremity imaging paid?
CMS pays each side separately at 100% when both sides are imaged. The documentation should identify the side or sides examined.
What documentation supports reporting this code?
Document the lower-extremity region examined and the clinical reason for obtaining both unenhanced and contrast-enhanced images. The record should support that both phases were performed in the same examination.
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
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