Billing code 37187: Venous thrombectomyMedicare rate & RVUs
Reports catheter-based mechanical removal of venous thrombus with fluoroscopic guidance, including any intraprocedural thrombolytic injections, for initial treatment.
Medicare pays $1,600.24 for 37187 nationally in the office and $345.70 in a hospital or facility. Local office rates run $1,395.30–$2,183.73.
Medicare rate · 37187
Venous thrombectomy
- Work RVUs
- 7.59
- Total RVUs
- 47.91
- Global days
- 000
National rate · 2026
$1,600.24
Office setting, before claim adjustments.
See every locality for 37187 →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
What 37187 covers
This service uses a percutaneous catheter technique to mechanically remove clot from one or more veins. Fluoroscopic guidance and any thrombolytic medication injected during the procedure are included. Interventional radiologists, vascular surgeons, and other physicians trained in endovascular procedures commonly perform it in a hospital or ambulatory procedural setting for conditions such as acute deep vein thrombosis involving the iliac or femoral veins.
Report 37187 for the initial mechanical treatment; 37188 is used for repeat treatment of the same vein or veins. The procedure note should identify the treated veins, document the thrombus and treatment performed, and distinguish the initial treatment from any repeat treatment. The code has a 0-day global period, so same-day preoperative and postoperative care is 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% reduction. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment is restricted; 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.
Where 37187 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
$1395.30 to $2183.73
109 of 109 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Alabama | $1,418.38 | $320.66 |
| Alaska* | $1,792.04 | $455.96 |
| Arizona | $1,553.54 | $337.90 |
| Arkansas | $1,395.30 | $317.65 |
| Atlanta | $1,630.64 | $356.03 |
| Austin | $1,671.33 | $344.03 |
| Bakersfield | $1,713.03 | $338.06 |
| Baltimore/Surr. Cntys | $1,709.78 | $363.66 |
| Beaumont | $1,479.86 | $338.23 |
| Brazoria | $1,580.91 | $337.67 |
| Chicago | $1,665.19 | $404.38 |
| Chico | $1,709.33 | $334.36 |
| Colorado | $1,677.09 | $342.26 |
| Connecticut | $1,714.82 | $363.69 |
| Dallas | $1,591.09 | $341.57 |
| Dc + Md/Va Suburbs | $1,850.80 | $372.95 |
| Delaware | $1,581.45 | $341.97 |
| Detroit | $1,584.65 | $374.02 |
| East St. Louis | $1,540.37 | $386.19 |
| El Centro | $1,709.55 | $334.57 |
| Fort Lauderdale | $1,652.53 | $381.68 |
| Fort Worth | $1,578.63 | $341.66 |
| Fresno | $1,709.33 | $334.36 |
| Galveston | $1,585.62 | $339.86 |
| Hanford-Corcoran | $1,709.33 | $334.36 |
| Hawaii, Guam | $1,760.32 | $333.91 |
| Houston | $1,609.60 | $363.84 |
| Idaho | $1,472.94 | $318.77 |
| Indiana | $1,482.63 | $319.67 |
| Iowa | $1,463.10 | $315.20 |
| Kansas | $1,453.45 | $319.35 |
| Kentucky | $1,451.89 | $336.60 |
| Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty) | $1,834.37 | $350.25 |
| Madera | $1,709.33 | $334.36 |
| Manhattan | $1,853.18 | $395.41 |
| Merced | $1,709.33 | $334.36 |
| Metropolitan Boston | $1,858.59 | $360.68 |
| Metropolitan Kansas City | $1,519.75 | $341.74 |
| Metropolitan Philadelphia | $1,666.67 | $360.69 |
| Metropolitan St. Louis | $1,537.78 | $343.46 |
| Miami | $1,720.56 | $414.59 |
| Minnesota | $1,607.22 | $316.30 |
| Mississippi | $1,407.70 | $327.55 |
| Modesto | $1,709.33 | $334.36 |
| Montana** | $1,600.15 | $345.61 |
| Napa | $2,009.03 | $355.54 |
| Nebraska | $1,472.69 | $314.75 |
| Nevada** | $1,594.23 | $338.44 |
| New Hampshire | $1,648.19 | $342.22 |
| New Mexico | $1,500.89 | $350.47 |
| New Orleans | $1,529.31 | $348.79 |
| North Carolina | $1,497.14 | $326.66 |
| North Dakota** | $1,574.25 | $319.71 |
| Northern Nj | $1,827.66 | $372.39 |
| Nyc Suburbs/Long Island | $1,900.22 | $408.58 |
| Ohio | $1,487.23 | $341.84 |
| Oklahoma | $1,451.06 | $330.76 |
| Oxnard-Thousand Oaks-Ventura | $1,827.98 | $345.12 |
| Portland | $1,737.72 | $343.93 |
| Poughkpsie/N Nyc Suburbs | $1,744.62 | $370.90 |
| Puerto Rico | $1,613.91 | $345.58 |
| Queens | $1,872.94 | $390.08 |
| Redding | $1,709.33 | $334.36 |
| Rest Of California | $1,709.33 | $334.36 |
| Rest Of Florida | $1,564.92 | $365.58 |
| Rest Of Georgia | $1,467.92 | $348.87 |
| Rest Of Illinois | $1,511.51 | $366.12 |
| Rest Of Louisiana | $1,448.56 | $338.29 |
| Rest Of Maine | $1,479.46 | $325.29 |
| Rest Of Maryland | $1,614.82 | $345.23 |
| Rest Of Massachusetts | $1,664.47 | $343.44 |
| Rest Of Michigan | $1,492.52 | $347.13 |
| Rest Of Missouri | $1,419.29 | $337.88 |
| Rest Of New Jersey | $1,734.50 | $364.54 |
| Rest Of New York | $1,522.09 | $330.28 |
| Rest Of Oregon | $1,582.03 | $332.51 |
| Rest Of Pennsylvania | $1,490.99 | $339.32 |
| Rest Of Texas | $1,529.54 | $338.99 |
| Rest Of Washington | $1,662.13 | $341.10 |
| Rhode Island | $1,643.33 | $347.39 |
| Riverside-San Bernardino-Ontario | $1,723.45 | $348.48 |
| Sacramento-Roseville-Folsom | $1,801.45 | $342.42 |
| Salinas | $1,794.97 | $340.96 |
| San Diego-Chula Vista-Carlsbad | $1,843.18 | $342.76 |
| San Francisco-Oakland-Berkeley (Marin Cnty) | $2,134.87 | $365.97 |
| San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty) | $2,133.38 | $364.48 |
| San Jose-Sunnyvale-Santa Clara (San Benito Cnty) | $2,183.73 | $374.69 |
| San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty) | $2,177.65 | $368.61 |
| San Luis Obispo-Paso Robles | $1,765.36 | $336.44 |
| Santa Cruz-Watsonville | $1,865.40 | $341.13 |
| Santa Maria-Santa Barbara | $1,803.33 | $340.53 |
| Santa Rosa-Petaluma | $1,884.62 | $344.04 |
| Seattle (King Cnty) | $1,900.68 | $361.36 |
| South Carolina | $1,494.65 | $335.46 |
| South Dakota** | $1,571.18 | $316.65 |
| Southern Maine | $1,572.36 | $329.12 |
| Stockton | $1,709.33 | $334.36 |
| Suburban Chicago | $1,670.97 | $382.56 |
| Tennessee | $1,461.41 | $321.03 |
| Utah | $1,517.60 | $338.33 |
| Vallejo | $2,006.88 | $353.40 |
| Vermont | $1,565.59 | $323.60 |
| Virgin Islands | $1,613.91 | $345.58 |
| Virginia | $1,565.22 | $332.01 |
| Visalia | $1,709.33 | $334.36 |
| West Virginia | $1,448.41 | $358.21 |
| Wisconsin | $1,515.23 | $313.39 |
| Wyoming** | $1,588.86 | $334.32 |
| Yuba City | $1,709.33 | $334.36 |
37187 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.
$1,395.30
$1,946.53
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $1,792.04 | 1 |
| AL | $1,418.38 | 1 |
| AR | $1,395.30 | 1 |
| AZ | $1,553.54 | 1 |
| CA | $1,709.33–$2,183.73 | 29 |
| CO | $1,677.09 | 1 |
| CT | $1,714.82 | 1 |
| DC | $1,850.80 | 1 |
| DE | $1,581.45 | 1 |
| FL | $1,564.92–$1,720.56 | 3 |
| GA | $1,467.92–$1,630.64 | 2 |
| GU | $1,760.32 | 1 |
| HI | $1,760.32 | 1 |
| IA | $1,463.10 | 1 |
| ID | $1,472.94 | 1 |
| IL | $1,511.51–$1,670.97 | 4 |
| IN | $1,482.63 | 1 |
| KS | $1,453.45 | 1 |
| KY | $1,451.89 | 1 |
| LA | $1,448.56–$1,529.31 | 2 |
| MA | $1,664.47–$1,858.59 | 2 |
| MD | $1,614.82–$1,850.80 | 3 |
| ME | $1,479.46–$1,572.36 | 2 |
| MI | $1,492.52–$1,584.65 | 2 |
| MN | $1,607.22 | 1 |
| MO | $1,419.29–$1,537.78 | 3 |
| MS | $1,407.70 | 1 |
| MT | $1,600.15 | 1 |
| NC | $1,497.14 | 1 |
| ND | $1,574.25 | 1 |
| NE | $1,472.69 | 1 |
| NH | $1,648.19 | 1 |
| NJ | $1,734.50–$1,827.66 | 2 |
| NM | $1,500.89 | 1 |
| NV | $1,594.23 | 1 |
| NY | $1,522.09–$1,900.22 | 5 |
| OH | $1,487.23 | 1 |
| OK | $1,451.06 | 1 |
| OR | $1,582.03–$1,737.72 | 2 |
| PA | $1,490.99–$1,666.67 | 2 |
| PR | $1,613.91 | 1 |
| RI | $1,643.33 | 1 |
| SC | $1,494.65 | 1 |
| SD | $1,571.18 | 1 |
| TN | $1,461.41 | 1 |
| TX | $1,479.86–$1,671.33 | 8 |
| UT | $1,517.60 | 1 |
| VA | $1,565.22–$1,850.80 | 2 |
| VI | $1,613.91 | 1 |
| VT | $1,565.59 | 1 |
| WA | $1,662.13–$1,900.68 | 2 |
| WI | $1,515.23 | 1 |
| WV | $1,448.41 | 1 |
| WY | $1,588.86 | 1 |
How the 37187 rate is calculated
Each of 37187’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 · 37187
RVUs × geographic indexes × conversion factor
Work7.59
7.59 RVUs× 1.000 GPCI
Practice expense39.01
39.01 RVUs× 1.000 GPCI
Malpractice1.31
1.31 RVUs× 1.000 GPCI
Adjusted RVUs
47.9100
Conversion factor
$33.4009
Medicare rate
$1,600.24
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 37187
The CMS indicators that decide how 37187 is paid alongside other services.
CMS payment indicators · 37187
Venous 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
37187 without 50 · national office
$1,600.24
Venous thrombectomy
37187-50 · Bilateral: 150%
$2,400.36
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).
37187 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 37188Venous thrombectomy
- 37187 covers the initial mechanical treatment. 37188 is for repeat treatment of the same vein or veins.
- 37184Arterial thrombectomy
- 37184 is for mechanical thrombectomy in an artery. Use 37187 when the treated vessel is a vein.
- 37212Venous thrombolysis
- 37212 describes catheter-directed thrombolytic infusion for venous thrombosis; 37187 reports mechanical removal of venous clot.
37187 billing questions
When should 37187 be reported instead of 37188?
Use 37187 for the initial mechanical treatment of the vein or veins. Use 37188 for repeat treatment of the same vein or veins.
Does 37187 include intraprocedural thrombolytic injections and fluoroscopic guidance?
Yes. Both are included in the service when performed as part of the mechanical thrombectomy.
Is 37187 reported for arterial thrombectomy?
No. It is for venous mechanical thrombectomy; 37184 describes initial mechanical thrombectomy in an artery.
How does the multiple-procedure reduction affect 37187?
When multiple procedures are performed in the same session, Medicare pays the highest-valued procedure in full and reduces the other procedures by 50%.
Can 37187 be reported bilaterally?
The CMS bilateral rule specifies modifier 50, with payment at 150% for a bilateral procedure.
Does Medicare pay an assistant surgeon for 37187?
No. The CMS facts specify a statutory restriction on assistant-at-surgery payment. 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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