CPT code 36473: Vein ablation, mechanochemical, first vein2026 Medicare rate & RVUs in Chicago, IL

Reports catheter-based mechanochemical treatment of the first incompetent lower-extremity vein, combining mechanical endothelial disruption with delivery of a sclerosant.

CMS RVU26DEffective Oct 1, 2026One payment locality1.3K Medicare services in 2024

In Chicago, IL, Medicare pays $1,212.46 for 36473 in the office and $191.66 when it’s performed in a hospital or facility.

$1,212.46Office (non-facility)
$191.66Hospital or facility
+3.3%vs the national office rate ($1,174.04)

Check a contract rate as a % of Medicare · 36473 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 36473 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Chicago, IL
  2. What 36473 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 36473 covers

This code covers percutaneous treatment of an incompetent lower-extremity vein using a catheter that mechanically disrupts the vein lining while delivering a sclerosant. It is used for superficial venous reflux, such as in a saphenous vein, and is typically performed by a vascular surgeon or another clinician trained in endovenous vein procedures in an office vein center or facility. Imaging guidance and monitoring during the treatment are included in the service.

Report 36473 for the first vein treated by this method; report 36474 for each additional vein treated in the same extremity. Documentation should identify the treated vein, the venous incompetence, the mechanochemical method, and any additional vein treated. 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 others at 50%. For bilateral treatment, modifier 50 is paid at 150%. Assistant-at-surgery services are restricted; 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.

How Chicago, IL compares for 36473

Across 109 of 109 payment localities, the office rate for 36473 runs from $1,015.94 in Arkansas to $1,632.46 in San Benito County, CA. Chicago, IL pays $1,212.46. The RVUs are the same everywhere; the geographic indexes change the dollars.

36473 in Chicago, IL vs other payment areas
  1. Chicago, IL · this page$1,212.46
  2. East St. Louis, IL · Illinois$1,116.64−$95.82
  3. Rest of Illinois · Illinois$1,098.09−$114.37
  4. Suburban Chicago, IL · Illinois$1,222.13+$9.67
  5. Los Angeles, CA · California$1,359.72+$147.26
  6. Washington, DC area · District of Columbia$1,367.27+$154.81
  7. Miami, FL · Florida$1,254.78+$42.32

Other areas in Illinois first, then benchmark localities. Bars start at $0.

Every other payment area

36473 in every other Medicare payment locality
Payment localityOfficeFacility
Manhattan, NYNew York$1,363.70$183.43
AlaskaAlaska$1,287.02$205.28
AlabamaAlabama$1,033.78$145.03
ArkansasArkansas$1,015.94$143.44
ArizonaArizona$1,138.35$154.11
Bakersfield, CACalifornia$1,265.78$152.55
Chico, CACalifornia$1,263.72$150.49
El Centro, CACalifornia$1,263.85$150.62

36473 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.

$1,015.94

$1,448.09

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
36473 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,287.021
AL$1,033.781
AR$1,015.941
AZ$1,138.351
CA$1,263.72–$1,632.4629
CO$1,236.171
CT$1,261.281
DC$1,367.271
DE$1,159.661
FL$1,141.10–$1,254.783
GA$1,067.06–$1,195.982
GU$1,305.301
HI$1,305.301
IA$1,070.951
ID$1,078.031
IL$1,098.09–$1,222.134
IN$1,085.601
KS$1,062.251
KY$1,057.021
LA$1,053.95–$1,116.382
MA$1,225.64–$1,376.762
MD$1,185.55–$1,367.273
ME$1,081.76–$1,155.482
MI$1,087.22–$1,155.002
MN$1,186.421
MO$1,030.55–$1,124.413
MS$1,023.631
MT$1,173.991
NC$1,095.651
ND$1,159.161
NE$1,078.761
NH$1,213.351
NJ$1,276.26–$1,348.542
NM$1,093.161
NV$1,170.891
NY$1,114.85–$1,398.435
OH$1,084.191
OK$1,057.701
OR$1,162.46–$1,284.352
PA$1,087.79–$1,223.372
PR$1,185.051
RI$1,207.661
SC$1,091.621
SD$1,157.411
TN$1,068.251
TX$1,079.10–$1,231.458
UT$1,109.381
VA$1,149.08–$1,367.272
VI$1,185.051
VT$1,151.321
WA$1,224.40–$1,410.122
WI$1,113.231
WV$1,049.241
WY$1,167.531

See 36473 in every payment locality

How the 36473 rate is calculated

Each of 36473’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 · 36473

RVUs × geographic indexes × conversion factor

Office or facility?

Work3.41

3.41 RVUs× 1.000 GPCI

Practice expense30.99

30.99 RVUs× 1.000 GPCI

Malpractice0.75

0.75 RVUs× 1.000 GPCI

Adjusted RVUs

35.1500

Conversion factor

$33.4009

Medicare rate

$1,174.04

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Chicago, IL inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

4,486

Code
36473
Physician work
3.41
Practice expense
30.99
Malpractice
0.75

GPCI2026.csv

48

Locality
Chicago, IL
Physician work
1.007
Practice expense
1.005
Malpractice
2.295
Office calculation for 36473 in Chicago, IL
ComponentRVULocality factorAdjusted
Physician work3.41× 1.0073.4339
Practice expense30.99× 1.00531.1449
Malpractice0.75× 2.2951.7212
Total RVUs36.3001
Conversion factor× 33.4009

Office rate, Chicago, IL$1212.46

Office: (3.41 × 1.007 + 30.99 × 1.005 + 0.75 × 2.295) × $33.4009 = $1212.46

Facility: (3.41 × 1.007 + 0.58 × 1.005 + 0.75 × 2.295) × $33.4009 = $191.66

Open 36473 in the RVU calculator

Payment rules and modifiers for 36473

The CMS indicators that decide how 36473 is paid alongside other services.

CMS payment indicators · 36473

Vein ablation, mechanochemical, first vein

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)1Not paid (statutory restriction).
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

36473 without 50 · national office

$1,174.04

Vein ablation, mechanochemical, first vein

36473-50 · Bilateral: 150%

$1,761.06

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

How 36473 has changed in Chicago, IL

36473 · Office / nonfacility

$1212.46

Effective 2026-10-01

The base rate is $69.65 higher than on 2025-10-01, moving from $1142.81 to $1212.46 (6.1%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
  1. January 1, 2026

    RVU26A

    $1142.81changed to$1212.46

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 3.50 changed to 3.41
    • Practice expense RVU 29.69 changed to 30.99
    • Malpractice RVU 0.71 changed to 0.75
    • Practice expense GPCI 1.023 changed to 1.005
    • Malpractice GPCI 2.018 changed to 2.295

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $1236.30changed to$1142.81

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 31.40 changed to 29.69
    • Malpractice RVU 0.74 changed to 0.71

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $1216.12changed to$1236.30

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $1301.35changed to$1216.12

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 32.42 changed to 31.40
    • Malpractice RVU 0.71 changed to 0.74
    • Work GPCI 1.009 changed to 1.007
    • Practice expense GPCI 1.033 changed to 1.023
    • Malpractice GPCI 1.945 changed to 2.018
  5. January 1, 2023

    RVU23A

    $1386.27changed to$1301.35

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 33.78 changed to 32.42
    • Malpractice RVU 0.67 changed to 0.71
    • Work GPCI 1.011 changed to 1.009
    • Practice expense GPCI 1.044 changed to 1.033
    • Malpractice GPCI 1.871 changed to 1.945

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $1520.74changed to$1386.27

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 37.12 changed to 33.78
    • Malpractice RVU 0.69 changed to 0.67

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $1531.93changed to$1520.74

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 36.25 changed to 37.12
    • Malpractice RVU 0.66 changed to 0.69
    • Work GPCI 1.009 changed to 1.011
    • Practice expense GPCI 1.039 changed to 1.044
    • Malpractice GPCI 1.898 changed to 1.871

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $1561.62changed to$1531.93

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 37.21 changed to 36.25
    • Malpractice RVU 0.69 changed to 0.66
    • Work GPCI 1.008 changed to 1.009
    • Practice expense GPCI 1.034 changed to 1.039
    • Malpractice GPCI 1.925 changed to 1.898

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $1613.09changed to$1561.62

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 38.62 changed to 37.21
    • Malpractice RVU 0.70 changed to 0.69

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $1593.00changed to$1613.09

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 38.36 changed to 38.62
    • Malpractice RVU 0.56 changed to 0.70
    • Work GPCI 1.012 changed to 1.008
    • Practice expense GPCI 1.036 changed to 1.034
    • Malpractice GPCI 1.972 changed to 1.925

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    No ratechanged to$1593.00

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$1,212.46$191.66RVU26D
2026-07-01$1,212.46$191.66RVU26C
2026-04-01$1,212.46$191.66RVU26B
2026-01-01$1,212.46$191.66RVU26A
2025-10-01$1,142.81$197.08RVU25D
2025-07-01$1,142.81$197.08RVU25C
2025-04-01$1,142.81$197.08RVU25B
2025-01-01$1,142.81$197.08RVU25A
2024-10-01$1,236.30$203.81RVU24D
2024-07-01$1,236.30$203.81RVU24C
2024-04-01$1,236.30$203.81RVU24B
2024-03-09$1,236.30$203.81RVU24AR
2024-01-01$1,216.12$200.48RVU24A
2023-10-01$1,301.35$204.28RVU23D
2023-07-01$1,301.35$204.28RVU23C
2023-04-01$1,301.35$204.28RVU23B
2023-01-01$1,301.35$204.28RVU23A
2022-10-01$1,386.27$204.49RVU22D
2022-07-01$1,386.27$204.49RVU22C
2022-04-01$1,386.27$204.49RVU22B
2022-01-01$1,386.27$204.49RVU22A
2021-10-01$1,520.74$206.04RVU21D
2021-07-01$1,520.74$206.04RVU21C
2021-04-01$1,520.74$206.04RVU21B
2021-01-01$1,520.74$206.04RVU21A
2020-10-01$1,531.93$210.91RVU20D
2020-07-01$1,531.93$210.91RVU20C
2020-04-01$1,531.93$210.91RVU20B
2020-01-01$1,531.93$210.91RVU20A
2019-10-01$1,561.62$210.79RVU19D
2019-07-01$1,561.62$210.79RVU19C
2019-04-01$1,561.62$210.79RVU19B
2019-01-01$1,561.62$210.79RVU19A
2018-10-01$1,613.09$210.13RVU18D
2018-07-01$1,613.09$210.13RVU18C
2018-04-01$1,613.09$210.13RVU18B
2018-01-01$1,613.09$210.13RVU18AR1
2017-10-01$1,593.00$202.07RVU17D
2017-07-01$1,593.00$202.07RVU17C
2017-04-01$1,593.00$202.07RVU17B
2017-01-01$1,593.00$202.07RVU17A
2016-10-01Not in this releaseNot in this releaseRVU16D
2016-07-01Not in this releaseNot in this releaseRVU16C
2016-04-01Not in this releaseNot in this releaseRVU16B
2016-01-01Not in this releaseNot in this releaseRVU16A
2015-10-01Not in this releaseNot in this releaseRVU15D
2015-07-01Not in this releaseNot in this releaseRVU15C
2015-04-01Not in this releaseNot in this releaseRVU15B
2015-01-01Not in this releaseNot in this releaseRVU15A
2014-10-01Not in this releaseNot in this releaseRVU14D
2014-07-01Not in this releaseNot in this releaseRVU14C
2014-04-01Not in this releaseNot in this releaseRVU14B
2014-01-01Not in this releaseNot in this releaseRVU14A
2013-10-01Not in this releaseNot in this releaseRVU13D
2013-07-01Not in this releaseNot in this releaseRVU13C
2013-04-01Not in this releaseNot in this releaseRVU13B
2013-01-01Not in this releaseNot in this releaseRVU13AR

Price 36473 for an earlier date of service

Where the Chicago, IL rate applies

Chicago, IL is a Medicare payment area, not a city. Our Census mapping connects it to 137 cities and communities in Illinois. Some span more than one payment area; confirm with the service ZIP.

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36473 billing questions

When should 36473 be selected instead of 36475 or 36478?

Use 36473 when the vein is treated with mechanochemical catheter treatment. Codes 36475 and 36478 describe radiofrequency and laser ablation, respectively.

How is treatment of another vein reported?

Report 36473 for the first vein and 36474 for each additional vein treated in the same extremity. The record should distinguish the veins treated.

Can imaging guidance be billed separately?

Imaging guidance and monitoring for the mechanochemical treatment are included in 36473.

How is bilateral treatment reported?

CMS identifies this as a bilateral procedure: report modifier 50 for bilateral treatment, which is paid at 150%.

Does the procedure have a postoperative global period?

It has a 0-day global period. Same-day preoperative and postoperative care is included.

Can an assistant or co-surgeon be reported?

CMS restricts payment for an assistant at surgery. 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 36473PPRRVU2026_Oct_nonQPP.csv, line 4,486 (RVU26D)
Geographic factors for Chicago, ILGPCI2026.csv, line 48 (RVU26D)

Open CMS sourceHow we calculate rates

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