Billing code 37184: Arterial thrombectomyMedicare rate & RVUs in Delaware
Reports catheter-based mechanical removal of clot from the first noncoronary, nonintracranial artery or arterial bypass graft treated.
Medicare pays $1,611.56 for 37184 in the office in Delaware (Delaware). 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.
On this page 9 sections
What 37184 covers
This service removes thrombus mechanically through a catheter in a noncoronary, nonintracranial artery or arterial bypass graft. It is commonly performed by an interventional radiologist, vascular surgeon, or other qualified specialist in an angiography suite or hospital procedure room, for situations such as acute limb ischemia caused by an arterial blockage or an occluded bypass graft. Fluoroscopic guidance and intraprocedural thrombolytic injections are included in the service.
Report 37184 for the initial treated vessel; 37185 may apply to each additional vessel. The operative or procedure report should identify the artery or graft, the clot-removal method, and the vessel treated first. The code has a 0-day global period, so same-day preoperative and postoperative care are included. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% multiple-procedure reduction. For bilateral reporting with modifier 50, CMS pays 150%. Assistant-at-surgery services are not paid; co-surgeons are permitted, but team surgery is not.
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.
37184 in Delaware
| Payment locality | Office | Facility |
|---|---|---|
| Delaware | $1,611.56 | $372.08 |
How the 37184 rate is calculated
Each of 37184’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 · 37184
RVUs × geographic indexes × conversion factor
Work8.20
8.20 RVUs× 1.000 GPCI
Practice expense39.12
39.12 RVUs× 1.000 GPCI
Malpractice1.51
1.51 RVUs× 1.000 GPCI
Adjusted RVUs
48.8300
Conversion factor
$33.4009
Medicare rate
$1,630.97
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 37184
The CMS indicators that decide how 37184 is paid alongside other services.
CMS payment indicators · 37184
Arterial thrombectomy
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 000 | Same-day global: pre- and post-op care on the day of the procedure is included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 1 | Not paid (statutory restriction). |
| Co-surgeons (62) | 2 | Permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
37184 without 50 · national office
$1,630.97
Arterial thrombectomy
37184-50 · Bilateral: 150%
$2,446.46
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
37184 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 37185Arterial thrombectomy
- 37184 is for the initial vessel treated; 37185 is for each additional qualifying vessel treated in the same session.
- 37186Arterial thrombectomy
- Use 37184 for primary mechanical arterial thrombectomy. 37186 describes secondary thrombectomy performed with another percutaneous intervention, not primary mechanical thrombectomy.
- 37187Venous thrombectomy
- 37187 describes mechanical thrombectomy in a vein. 37184 is for a noncoronary, nonintracranial artery or arterial bypass graft.
37184 billing questions
When should 37185 be reported instead?
Use 37184 for the initial vessel treated mechanically. Report 37185 for each qualifying additional vessel treated in the same session.
Does 37184 include fluoroscopic guidance and thrombolytic injections?
Yes. Fluoroscopic guidance and intraprocedural pharmacological thrombolytic injections are included in this thrombectomy service.
How is 37184 different from 37186?
37184 describes primary mechanical thrombectomy of the initial artery or arterial bypass graft. 37186 describes secondary thrombectomy performed with another percutaneous intervention, rather than primary mechanical thrombectomy.
What documentation supports reporting 37184?
Document the treated artery or graft, the mechanical clot-removal work, and which vessel was treated first. The report should support that the service involved a noncoronary, nonintracranial artery or arterial bypass graft.
How does the multiple-procedure reduction affect 37184?
For multiple procedures in one session, CMS pays the highest-valued procedure in full and applies the standard 50% reduction to the others. The reduction depends on which procedure has the highest value.
Can an assistant surgeon be paid for 37184?
No. CMS applies a statutory restriction on assistant-at-surgery payment for this code. Co-surgeons are permitted, while team surgery is not.
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
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