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Billing code 37212: Venous thrombolysisMedicare rate & RVUs

Reports catheter-directed thrombolytic infusion in the venous system on the initial treatment day, such as treatment of an extensive acute venous thrombosis.

CMS RVU26DEffective Oct 1, 2026109 payment localities765 Medicare services in 2024

Medicare pays $294.60 for 37212 nationally in a facility.

Medicare rate · 37212

Venous thrombolysis

Swap in your local Medicare rate.

Work RVUs
6.64
Total RVUs
8.82
Global days
000

National rate · 2026

$294.60

Facility setting, before claim adjustments.

See every locality for 37212 → · 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 37212 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 37212 covers

This code represents the initial treatment day for delivering a thrombolytic drug into a vein through a catheter to dissolve a clot. A typical situation is catheter-directed treatment of extensive acute iliofemoral deep vein thrombosis. Interventional radiologists, vascular surgeons, and other physicians who perform endovascular procedures may provide the service, generally in a hospital or other facility. The code includes radiological supervision and interpretation associated with the thrombolytic treatment.

Report 37212 for the initial treatment day; continued treatment on a later day and stopping therapy with catheter removal are represented by separate codes in this family. Documentation should identify the venous target, the thrombus and clinical indication, the infusion performed, and that this is the initial treatment day. CMS assigns 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. Modifier 50 applies to bilateral reporting, 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 37212 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

37212 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$273.01
Alaska*Unavailable$389.45
ArizonaUnavailable$287.77
ArkansasUnavailable$270.43
AtlantaUnavailable$303.90
AustinUnavailable$292.31
BakersfieldUnavailable$286.12
Baltimore/Surr. CntysUnavailable$310.09
BeaumontUnavailable$288.81
BrazoriaUnavailable$287.19

37212 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
37212 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 37212 rate is calculated

Each of 37212’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 · 37212

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 6.64Practice expense 0.97Malpractice 1.21

8.8200 adjusted RVUs×$33.4009 conversion factor=$294.60

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

Payment rules and modifiers for 37212

The CMS indicators that decide how 37212 is paid alongside other services.

CMS payment indicators · 37212

Venous 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

37212 without 50 · national facility

$294.60

Venous thrombolysis

37212-50 · Bilateral: 150%

$441.90

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

37212 compared with similar codes

Compare codes

37212 vs 37211 vs 37213 vs 37214: national Medicare rates

Swap in your local Medicare rate.

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

How to choose

37211Arterial thrombolysis
Use 37211 for initial-day thrombolytic infusion in an artery. Use 37212 when the treated vascular system is venous.
37213Thrombolytic infusion
37213 represents a subsequent treatment day, not the initial day represented by 37212.
37214Thrombolysis
37214 applies when thrombolytic therapy is stopped and the catheter is removed; 37212 reports the initial treatment day.

Codes related to 37212

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

Codes related to 37212
CodeHow it relatesNational office range
Same family
37211Arterial thrombolysisInitial-day thrombolytic infusion for the arterial system rather than the venous system.No office rate
37213Thrombolytic infusionRepresents continued thrombolytic treatment on a subsequent day.No office rate
37214ThrombolysisRepresents stopping thrombolytic therapy and removing the catheter.No office rate

37212 billing questions

How does 37212 differ from 37211?

37212 is for thrombolytic infusion in the venous system; 37211 is for infusion in the arterial system. Select the code that matches the treated vascular system.

Can 37212 be reported again on a later treatment day?

No. Use 37212 for the initial treatment day; continued thrombolytic treatment on a subsequent day is represented by 37213.

Which code applies when thrombolytic treatment is stopped and the catheter is removed?

Use 37214 for cessation of thrombolytic therapy with catheter removal, rather than reporting another initial-day service.

Is radiological supervision and interpretation included?

Yes. The code includes radiological supervision and interpretation associated with the venous thrombolytic treatment.

What documentation supports reporting 37212?

Document the venous target, the clot and clinical indication, the thrombolytic infusion performed, and that the service was on the initial treatment day.

How does the bilateral payment rule affect 37212?

CMS pays bilateral reporting with modifier 50 at 150%. The code also follows the standard multiple-procedure reduction when other procedures are performed in the same session.

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 37212PPRRVU2026_Oct_nonQPP.csv, line 4,592 (RVU26D)

Open CMS sourceHow we calculate rates

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