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CPT code 36225: Subclavian angiography, unilateral selective placement2026 Medicare rate & RVUs in Chicago, IL

Reports selective catheter positioning in a subclavian artery for angiographic assessment of the same-side vertebral and/or cervical carotid vessels.

CMS RVU26DEffective Oct 1, 2026One payment locality7.8K Medicare services in 2024

In Chicago, IL, Medicare pays $1,874.45 for 36225 in the office and $368.93 when it’s performed in a hospital or facility.

$1,874.45Office (non-facility)
$368.93Hospital or facility
+4.6%vs the national office rate ($1,792.29)

Check a contract rate as a % of Medicare · 36225 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 36225 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Chicago, IL
  2. What 36225 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 36225 covers

An interventional radiologist, neurointerventionalist, or other qualified physician selectively positions a catheter in one subclavian artery to perform angiographic assessment of the ipsilateral vertebral and/or cervical carotid vessels. This approach may be used when evaluating vertebral-origin disease or suspected subclavian steal. The service is generally performed in a hospital angiography suite or another setting equipped for catheter-based vascular imaging.

Report the code for the documented unilateral subclavian catheter position and the associated angiographic study; document the side, catheter location, vessels imaged, and findings. The specified angiographic work is represented with the catheter service. The CMS global period is 0 days, so same-day preoperative and postoperative care is included. For bilateral performance, modifier 50 is paid at 150%. In a same-session multiple-procedure claim, the highest-valued procedure is paid in full and other procedures are paid at 50%. Assistant-at-surgery payment is 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 36225

Across 109 of 109 payment localities, the office rate for 36225 runs from $1,546.58 in Arkansas to $2,471.13 in San Benito County, CA. Chicago, IL pays $1,874.45. The RVUs are the same everywhere; the geographic indexes change the dollars.

36225 in Chicago, IL vs other payment areas
  1. Chicago, IL · this page$1,874.45
  2. East St. Louis, IL · Illinois$1,725.65−$148.80
  3. Rest of Illinois · Illinois$1,689.36−$185.09
  4. Suburban Chicago, IL · Illinois$1,878.99+$4.54
  5. Los Angeles, CA · California$2,064.38+$189.93
  6. Washington, DC area · District of Columbia$2,084.42+$209.97
  7. Miami, FL · Florida$1,942.09+$67.64

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

Every other payment area

36225 in every other Medicare payment locality
Payment localityOfficeFacility
Manhattan, NYNew York$2,088.21$347.50
AlaskaAlaska$1,961.29$365.88
AlabamaAlabama$1,574.24$263.46
ArkansasArkansas$1,546.58$259.77
ArizonaArizona$1,736.16$284.57
Bakersfield, CACalifornia$1,922.43$280.59
Chico, CACalifornia$1,917.94$276.10
El Centro, CACalifornia$1,918.22$276.38

36225 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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.

$1,546.58

$2,194.54

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

View every state and territory as a table
36225 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,961.291
AL$1,574.241
AR$1,546.581
AZ$1,736.161
CA$1,917.94–$2,471.1329
CO$1,881.281
CT$1,927.131
DC$2,084.421
DE$1,768.951
FL$1,752.55–$1,942.093
GA$1,635.90–$1,828.982
GU$1,980.671
HI$1,980.671
IA$1,626.631
ID$1,638.671
IL$1,689.36–$1,878.994
IN$1,650.241
KS$1,615.641
KY$1,615.611
LA$1,611.85–$1,708.612
MA$1,865.90–$2,094.172
MD$1,808.12–$2,084.423
ME$1,647.08–$1,757.532
MI$1,664.86–$1,776.822
MN$1,797.461
MO$1,577.14–$1,718.083
MS$1,562.321
MT$1,792.181
NC$1,668.171
ND$1,758.761
NE$1,637.951
NH$1,848.721
NJ$1,947.72–$2,055.692
NM$1,675.121
NV$1,784.411
NY$1,698.10–$2,145.325
OH$1,658.031
OK$1,614.021
OR$1,769.33–$1,952.722
PA$1,662.21–$1,870.052
PR$1,808.481
RI$1,840.861
SC$1,666.141
SD$1,754.811
TN$1,625.251
TX$1,648.92–$1,876.048
UT$1,693.631
VA$1,749.37–$2,084.422
VI$1,808.481
VT$1,748.921
WA$1,863.31–$2,142.832
WI$1,688.201
WV$1,613.771
WY$1,777.621

See 36225 in every payment locality

How the 36225 rate is calculated

Each of 36225’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 · 36225

RVUs × geographic indexes × conversion factor

Office or facility?

Work5.61

5.61 RVUs× 1.000 GPCI

Practice expense46.36

46.36 RVUs× 1.000 GPCI

Malpractice1.69

1.69 RVUs× 1.000 GPCI

Adjusted RVUs

53.6600

Conversion factor

$33.4009

Medicare rate

$1,792.29

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

4,451

Code
36225
Physician work
5.61
Practice expense
46.36
Malpractice
1.69

GPCI2026.csv

48

Locality
Chicago, IL
Physician work
1.007
Practice expense
1.005
Malpractice
2.295
Office calculation for 36225 in Chicago, IL
ComponentRVULocality factorAdjusted
Physician work5.61× 1.0075.6493
Practice expense46.36× 1.00546.5918
Malpractice1.69× 2.2953.8785
Total RVUs56.1196
Conversion factor× 33.4009

Office rate, Chicago, IL$1874.45

Office: (5.61 × 1.007 + 46.36 × 1.005 + 1.69 × 2.295) × $33.4009 = $1874.45

Facility: (5.61 × 1.007 + 1.51 × 1.005 + 1.69 × 2.295) × $33.4009 = $368.93

Open 36225 in the RVU calculator

Payment rules and modifiers for 36225

The CMS indicators that decide how 36225 is paid alongside other services.

CMS payment indicators · 36225

Subclavian angiography, unilateral selective placement

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

36225 without 50 · national office

$1,792.29

Subclavian angiography, unilateral selective placement

36225-50 · Bilateral: 150%

$2,688.44

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

Codes related to 36225

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

Codes related to 36225
CodeHow it relatesOffice range, Chicago, IL
Same family
36226Vertebral angiography, direct vertebral selectionSame-side vertebral catheter placement, rather than selective placement in the subclavian artery.$2,380.52
36224Carotid angiography, internal carotid, both circulationsSelective internal carotid catheterization with angiographic assessment of the ipsilateral circulation.$2,447.03
36222Carotid angiography, common carotid, extracranialSelective common carotid or innominate catheterization for angiographic assessment of the ipsilateral circulation.$1,322.63
Used instead
36221Aortic arch angiography, nonselective thoracic aortaNonselective thoracic aortic catheter positioning for angiography, rather than selective subclavian positioning.$996.73

How 36225 has changed in Chicago, IL

36225 · Office / nonfacility

$1874.45

Effective 2026-10-01

The base rate is $268.43 higher than on 2025-10-01, moving from $1606.02 to $1874.45 (16.7%).

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

    $1606.02changed to$1874.45

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 5.75 changed to 5.61
    • Practice expense RVU 39.58 changed to 46.36
    • Malpractice RVU 1.67 changed to 1.69
    • 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

    $1656.19changed to$1606.02

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 39.76 changed to 39.58
    • Malpractice RVU 1.63 changed to 1.67

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $1629.16changed to$1656.19

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $1674.13changed to$1629.16

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 39.29 changed to 39.76
    • Malpractice RVU 1.55 changed to 1.63
    • 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

    $1717.66changed to$1674.13

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 39.34 changed to 39.29
    • Malpractice RVU 1.47 changed to 1.55
    • 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

    $1758.22changed to$1717.66

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 40.17 changed to 39.34
    • Malpractice RVU 1.41 changed to 1.47

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $1675.50changed to$1758.22

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 36.67 changed to 40.17
    • Malpractice RVU 1.33 changed to 1.41
    • 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

    $1616.38changed to$1675.50

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 35.22 changed to 36.67
    • Malpractice RVU 1.37 changed to 1.33
    • 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

    $1576.37changed to$1616.38

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 34.23 changed to 35.22
    • Malpractice RVU 1.35 changed to 1.37

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $1538.14changed to$1576.37

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 33.24 changed to 34.23
    • Malpractice RVU 1.32 changed to 1.35
    • 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

    $1630.48changed to$1538.14

    • Conversion factor 35.8043 changed to 35.8887
    • Work RVU 6.00 changed to 5.75
    • Practice expense RVU 35.66 changed to 33.24
    • Malpractice RVU 1.22 changed to 1.32
    • Work GPCI 1.016 changed to 1.012
    • Practice expense GPCI 1.037 changed to 1.036
    • Malpractice GPCI 2.019 changed to 1.972

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $1600.66changed to$1630.48

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 34.41 changed to 35.66
    • Malpractice RVU 1.37 changed to 1.22

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $1592.70changed to$1600.66

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $1644.10changed to$1592.70

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 36.12 changed to 34.41
    • Malpractice RVU 1.00 changed to 1.37
    • Work GPCI 1.023 changed to 1.016
    • Practice expense GPCI 1.044 changed to 1.037
    • Malpractice GPCI 2.048 changed to 2.019

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $1680.46changed to$1644.10

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 39.04 changed to 36.12
    • Malpractice RVU 1.05 changed to 1.00
    • Work GPCI 1.030 changed to 1.023
    • Practice expense GPCI 1.051 changed to 1.044
    • Malpractice GPCI 2.077 changed to 2.048

    Held through RVU14B, RVU14C, RVU14D.

  16. October 1, 2013

    RVU13D

    No ratechanged to$1680.46

  17. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$1,874.45$368.93RVU26D
2026-07-01$1,874.45$368.93RVU26C
2026-04-01$1,874.45$368.93RVU26B
2026-01-01$1,874.45$368.93RVU26A
2025-10-01$1,606.02$374.07RVU25D
2025-07-01$1,606.02$374.07RVU25C
2025-04-01$1,606.02$374.07RVU25B
2025-01-01$1,606.02$374.07RVU25A
2024-10-01$1,656.19$379.54RVU24D
2024-07-01$1,656.19$379.54RVU24C
2024-04-01$1,656.19$379.54RVU24B
2024-03-09$1,656.19$379.54RVU24AR
2024-01-01$1,629.16$373.34RVU24A
2023-10-01$1,674.13$376.83RVU23D
2023-07-01$1,674.13$376.83RVU23C
2023-04-01$1,674.13$376.83RVU23B
2023-01-01$1,674.13$376.83RVU23A
2022-10-01$1,717.66$374.75RVU22D
2022-07-01$1,717.66$374.75RVU22C
2022-04-01$1,717.66$374.75RVU22B
2022-01-01$1,717.66$374.75RVU22A
2021-10-01$1,758.22$372.49RVU21D
2021-07-01$1,758.22$372.49RVU21C
2021-04-01$1,758.22$372.49RVU21B
2021-01-01$1,758.22$372.49RVU21A
2020-10-01$1,675.50$378.10RVU20D
2020-07-01$1,675.50$378.10RVU20C
2020-04-01$1,675.50$378.10RVU20B
2020-01-01$1,675.50$378.10RVU20A
2019-10-01$1,616.38$379.95RVU19D
2019-07-01$1,616.38$379.95RVU19C
2019-04-01$1,616.38$379.95RVU19B
2019-01-01$1,616.38$379.95RVU19A
2018-10-01$1,576.37$377.03RVU18D
2018-07-01$1,576.37$377.03RVU18C
2018-04-01$1,576.37$377.03RVU18B
2018-01-01$1,576.37$377.03RVU18AR1
2017-10-01$1,538.14$375.50RVU17D
2017-07-01$1,538.14$375.50RVU17C
2017-04-01$1,538.14$375.50RVU17B
2017-01-01$1,538.14$375.50RVU17A
2016-10-01$1,630.48$382.94RVU16D
2016-07-01$1,630.48$382.94RVU16C
2016-04-01$1,630.48$382.94RVU16B
2016-01-01$1,630.48$382.94RVU16A
2015-10-01$1,600.66$394.83RVU15D
2015-07-01$1,600.66$394.83RVU15C
2015-04-01$1,592.70$392.87RVU15B
2015-01-01$1,592.70$392.87RVU15A
2014-10-01$1,644.10$371.78RVU14D
2014-07-01$1,644.10$371.78RVU14C
2014-04-01$1,644.10$371.78RVU14B
2014-01-01$1,644.10$371.78RVU14A
2013-10-01$1,680.46$364.92RVU13D
2013-07-01Rate data unavailableRate data unavailableRVU13C
2013-04-01Rate data unavailableRate data unavailableRVU13B
2013-01-01Rate data unavailableRate data unavailableRVU13AR

Price 36225 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.

Browse all communities in Illinois

36225 billing questions

When is 36225 used instead of 36226?

Use 36225 when the selective catheter position is in the subclavian artery. Use 36226 when the catheter is selectively positioned in the vertebral artery.

Is the angiographic study reported separately from 36225?

The code represents the subclavian catheter service with the specified ipsilateral vertebral and/or cervical carotid angiographic assessment. Do not separately report another selective catheter-placement service for the same position.

What documentation supports 36225?

Document the side, selective catheter location in the subclavian artery, vessels imaged, and angiographic findings. The record should distinguish this position from direct catheterization of the vertebral artery.

How is bilateral performance reported under the CMS rule?

For bilateral performance, report modifier 50; CMS pays the bilateral procedure at 150%.

How does the multiple-procedure reduction affect 36225?

When it is one of multiple procedures performed in the same session, CMS pays the highest-valued procedure in full and the others at 50%. The reduction depends on the relative values of the procedures performed.

Can an assistant or co-surgeon be paid for this service?

CMS does not pay an assistant at surgery for this code. 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 36225PPRRVU2026_Oct_nonQPP.csv, line 4,451 (RVU26D)
Geographic factors for Chicago, ILGPCI2026.csv, line 48 (RVU26D)

Open CMS sourceHow we calculate rates

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