CPT code 74185: Abdominal MRA, with or without contrast2026 Medicare rate & RVUs in Missouri
Report 74185 for magnetic resonance angiography focused on abdominal vessels, with or without contrast, when Medicare coverage criteria permit payment.
Medicare pays $298.03–$322.64 for 74185 in the office in Missouri, from Rest of Missouri to Metropolitan St. Louis, MO. 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 74185 covers
74185 represents magnetic resonance angiography focused on blood vessels in the abdomen. Radiologists commonly interpret these studies when clinicians need to assess vessels such as the renal arteries, abdominal aorta, or mesenteric arteries, including concerns such as narrowing or aneurysm. The study may use contrast or be performed without it. It is distinct from a routine abdominal MRI, which evaluates abdominal organs and tissues rather than providing a dedicated angiographic assessment. These studies are performed in hospital or outpatient imaging settings.
Report the code for the abdominal MRA service, and document the clinical indication, imaged anatomy, whether contrast was used, and the interpretation. CMS payment is restricted to specific circumstances, so the service is paid only when applicable coverage requirements are met. The global service includes technical performance and interpretation when billed without a component modifier. Modifier 26 identifies the professional interpretation; modifier TC identifies the technical service, including equipment and staff. When multiple diagnostic imaging procedures are performed, the CMS multiple-procedure reduction applies to both components.
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 74185 pays more and less in Missouri
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
3 payment localities
$298.03 to $322.64
| Payment locality | Office | Facility |
|---|---|---|
| Metropolitan Kansas City, MO | $318.98 | Unavailable |
| Metropolitan St. Louis, MO | $322.64 | Unavailable |
| Rest of Missouri | $298.03 | Unavailable |
How the 74185 rate is calculated
Each of 74185’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 · 74185
RVUs × geographic indexes × conversion factor
Work1.76
1.76 RVUs× 1.000 GPCI
Practice expense8.14
8.14 RVUs× 1.000 GPCI
Malpractice0.15
0.15 RVUs× 1.000 GPCI
Adjusted RVUs
10.0500
Conversion factor
$33.4009
Medicare rate
$335.68
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 74185
The CMS indicators that decide how 74185 is paid alongside other services.
CMS payment indicators · 74185
Abdominal MRA, with or without 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) | 0 | The 150% bilateral adjustment doesn’t apply. |
| 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
74185 without 26 · national office
$335.68
Abdominal MRA, with or without contrast
74185-26 · Professional component
$82.50
Pays only the interpretation and report.
74185 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 74175Abdominal CTAContrast-enhanced, abdomen only
- Use 74185 for abdominal MR angiography and 74175 for abdominal CT angiography. The modality documented in the imaging report distinguishes them.
- 74174CTA abdomen/pelvisWith contrast
- 74174 is CT angiography covering the abdomen and pelvis; 74185 is MR angiography focused on the abdomen.
- 74183MRI abdomenWithout and with contrast
- 74183 is a routine abdominal MRI performed without and with contrast, not a dedicated MRA of abdominal vessels.
74185 billing questions
How is an abdominal MRA different from a routine abdominal MRI?
74185 is for an angiographic assessment of abdominal vessels, such as the renal arteries or abdominal aorta. Routine abdominal MRI codes are used for nonangiographic evaluation of abdominal organs and tissues.
When should modifier 26 or TC be reported?
Use modifier 26 for the professional interpretation and modifier TC for the technical service, including equipment and staff. Without either modifier, the claim represents the global service.
Does contrast determine which code to report?
No. 74185 covers abdominal MRA performed with or without contrast; document the contrast status as part of the study record.
How does the multiple-procedure reduction affect 74185?
CMS applies the diagnostic imaging multiple-procedure reduction to both the professional and technical components when multiple diagnostic imaging procedures are performed.
What documentation supports reporting 74185?
Document the reason for the vascular study, the abdominal vessels or region evaluated, contrast use, and the interpreting physician's findings.
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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