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Billing code 37211: Arterial thrombolysisMedicare rate & RVUs

Reports catheter-directed thrombolytic infusion for an arterial clot outside the coronary circulation, with imaging supervision and interpretation as part of the service.

CMS RVU26DEffective Oct 1, 2026109 payment localities4.8K Medicare services in 2024

Medicare pays $338.35 for 37211 nationally in a facility.

Medicare rate · 37211

Arterial thrombolysis

Swap in your local Medicare rate.

Work RVUs
7.56
Total RVUs
10.13
Global days
000

National rate · 2026

$338.35

Facility setting, before claim adjustments.

See every locality for 37211 → · 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 37211 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 37211 covers

An interventional radiologist, vascular surgeon, or other qualified physician uses an arterial catheter to deliver thrombolytic medication to a clot outside the coronary arteries. The service is used for situations such as acute arterial occlusion from thrombus, with treatment performed in an angiography suite or hospital procedure setting. Imaging guidance and interpretation associated with the thrombolytic treatment are included in the service.

Report this code for the arterial infusion treatment, not for venous thrombolysis or the later-day management and discontinuation services described by neighboring codes. The record should identify the treated artery, thrombotic condition, catheter-directed treatment, and imaging work. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. 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 treatment, modifier 50 is paid at 150%. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery are not permitted.

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 37211 pays more and less

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

109 of 109 payment localities

37211 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$312.14
Alaska*Unavailable$444.43
ArizonaUnavailable$330.03
ArkansasUnavailable$309.01
AtlantaUnavailable$349.75
AustinUnavailable$335.22
BakersfieldUnavailable$326.99
Baltimore/Surr. CntysUnavailable$356.87
BeaumontUnavailable$331.58
BrazoriaUnavailable$329.03

37211 rates by state

Office rate range in each state. Select a state to see its payment localities.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
37211 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the 37211 rate is calculated

Each of 37211’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 · 37211

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 7.56Practice expense 1.07Malpractice 1.50

10.1300 adjusted RVUs×$33.4009 conversion factor=$338.35

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

Payment rules and modifiers for 37211

The CMS indicators that decide how 37211 is paid alongside other services.

CMS payment indicators · 37211

Arterial thrombolysis

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

37211 without 50 · national facility

$338.35

Arterial thrombolysis

37211-50 · Bilateral: 150%

$507.53

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).

When to use modifier 50

37211 compared with similar codes

Compare codes

37211 vs 37212 vs 37213 vs 37214: national Medicare rates

Swap in your local Medicare rate.

  • 37211
    Arterial thrombolysis · 7.56 wRVU
    —
  • 37212
    Venous thrombolysis · 6.64 wRVU
    —
  • 37213
    Thrombolytic infusion · 4.63 wRVU
    —
  • 37214
    Thrombolysis · 2.43 wRVU
    —

How to choose

37212Venous thrombolysis
Choose 37211 for arterial infusion treatment outside the coronary circulation; choose 37212 when the treated vessel is venous.
37213Thrombolytic infusion
37211 reports arterial thrombolytic infusion, while 37213 describes continued catheter-directed treatment on a subsequent day.
37214Thrombolysis
37214 describes cessation of thrombolytic treatment and catheter removal; it is not the code for the arterial infusion treatment itself.

Codes related to 37211

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 37211
CodeHow it relatesNational office range
Used instead
37212Venous thrombolysisUsed for catheter-directed thrombolytic infusion in veins rather than arteries.No office rate
Same family
37213Thrombolytic infusionDescribes continued catheter-directed thrombolytic treatment on a subsequent day.No office rate
37214ThrombolysisDescribes stopping thrombolytic treatment and removing the catheter.No office rate

37211 billing questions

When should this code be chosen over 37212?

Use 37211 for catheter-directed thrombolytic infusion in an artery outside the coronary circulation. Code 37212 describes the corresponding venous treatment.

Does this code include imaging work?

Imaging supervision and interpretation associated with the arterial thrombolytic treatment are included. Do not separately report that same imaging work as though it were outside the therapy.

How is later-day thrombolytic management distinguished?

Code 37213 describes continued catheter-directed thrombolytic treatment on a subsequent day. Code 37214 is used when thrombolytic treatment is stopped and the catheter is removed.

What supports reporting 37211?

Document the arterial site and thrombotic condition, catheter-directed delivery of thrombolytic medication, and the imaging work performed for treatment.

How should bilateral treatment and other procedures be handled?

For bilateral treatment, modifier 50 is paid at 150%. When other procedures are performed in the same session, the highest-valued procedure is paid in full and the others are subject to the standard 50% multiple-procedure reduction.

Can an assistant or co-surgeon be reported?

Assistant-at-surgery payment is allowed only when medical necessity is documented. Co-surgeons and team surgery are not permitted.

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 37211PPRRVU2026_Oct_nonQPP.csv, line 4,591 (RVU26D)

Open CMS sourceHow we calculate rates

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