FeeBase
Log inGet started
Menu

CPT code 93452: Left heart cath, left-sided study2026 Medicare rate & RVUs in King County, WA

Left heart catheterization evaluates left ventricular pressures and function, reported when the left-sided catheter study is performed without coronary angiography.

CMS RVU26DEffective Oct 1, 2026One payment locality3K Medicare services in 2024

In King County, WA, Medicare pays $1,036.70 for 93452 in the office.

$1,036.70Office (non-facility)
Not available in this settingHospital or facility
+18.3%vs the national office rate ($876.11)

Check a contract rate as a % of Medicare · 93452 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 93452 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in King County, WA
  2. What 93452 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 93452 covers

A cardiologist typically advances a catheter through arterial access into the left side of the heart to assess pressures and cardiac function. The study may include contrast injection to image the left ventricle; this is used in evaluations such as suspected valve disease or impaired ventricular function. It is commonly performed in a cardiac catheterization laboratory. Coronary angiography is not part of this service; when it is also performed, a different code describes the combined work.

Report the code for the left-sided catheter study, whether or not ventriculography is performed. The record should support the catheterization and document the findings and any imaging performed. CMS recognizes professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies equipment and staff, and no modifier represents the global service. The code has a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and the others at 50%. Modifier 50 is inappropriate. Assistant-at-surgery payment requires medical-necessity documentation; co-surgeon and team-surgery billing 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 King County, WA compares for 93452

Across 109 of 109 payment localities, the office rate for 93452 runs from $762.91 in Arkansas to $1,187.43 in San Benito County, CA. King County, WA pays $1,036.70. The RVUs are the same everywhere; the geographic indexes change the dollars.

93452 in King County, WA vs other payment areas
  1. King County, WA · this page$1,036.70
  2. Rest of Washington · Washington$907.90−$128.80
  3. Los Angeles, CA · California$1,000.01−$36.69
  4. Washington, DC area · District of Columbia$1,011.92−$24.78
  5. Miami, FL · Florida$950.74−$85.96
  6. Chicago, IL · Illinois$919.56−$117.14
  7. Manhattan, NY · New York$1,016.41−$20.29

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

Every other payment area

93452 in every other Medicare payment locality
Payment localityOfficeFacility
AlaskaAlaska$981.39—
AlabamaAlabama$775.63—
ArkansasArkansas$762.91—
ArizonaArizona$850.09—
Bakersfield, CACalifornia$934.28—
Chico, CACalifornia$931.79—
El Centro, CACalifornia$931.94—
Fresno, CACalifornia$931.79—

93452 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.

$762.91

$1,059.61

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

View every state and territory as a table
93452 office rate range by state
State / territoryOffice rate rangeLocalities
AK$981.391
AL$775.631
AR$762.911
AZ$850.091
CA$931.79–$1,187.4329
CO$916.041
CT$939.211
DC$1,011.921
DE$865.411
FL$860.45–$950.743
GA$806.34–$893.782
GU$959.271
HI$959.271
IA$798.531
ID$804.311
IL$832.18–$919.564
IN$809.601
KS$794.051
KY$795.921
LA$794.41–$838.932
MA$909.42–$1,014.502
MD$883.50–$1,011.923
ME$808.79–$858.722
MI$819.13–$872.252
MN$875.231
MO$778.80–$842.593
MS$771.041
MT$876.051
NC$818.391
ND$858.251
NE$803.551
NH$901.021
NJ$949.23–$999.292
NM$824.101
NV$871.781
NY$832.21–$1,043.445
OH$815.501
OK$794.561
OR$864.38–$948.392
PA$817.10–$913.222
PR$883.351
RI$898.731
SC$818.441
SD$856.151
TN$798.541
TX$811.02–$913.548
UT$831.071
VA$855.38–$1,011.922
VI$883.351
VT$854.261
WA$907.90–$1,036.702
WI$825.931
WV$797.441
WY$868.291

See 93452 in every payment locality

How the 93452 rate is calculated

Each of 93452’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 · 93452

RVUs × geographic indexes × conversion factor

Office or facility?

Work4.39

4.39 RVUs× 1.000 GPCI

Practice expense20.94

20.94 RVUs× 1.000 GPCI

Malpractice0.90

0.90 RVUs× 1.000 GPCI

Adjusted RVUs

26.2300

Conversion factor

$33.4009

Medicare rate

$876.11

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

The exact King County, WA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

12,094

Code
93452
Physician work
4.39
Practice expense
20.94
Malpractice
0.90

GPCI2026.csv

108

Locality
King County, WA
Physician work
1.050
Practice expense
1.227
Malpractice
0.817
Office calculation for 93452 in King County, WA
ComponentRVULocality factorAdjusted
Physician work4.39× 1.0504.6095
Practice expense20.94× 1.22725.6934
Malpractice0.90× 0.8170.7353
Total RVUs31.0382
Conversion factor× 33.4009

Office rate, King County, WA$1036.70

Office: (4.39 × 1.05 + 20.94 × 1.227 + 0.9 × 0.817) × $33.4009 = $1036.70

Open 93452 in the RVU calculator

Payment rules and modifiers for 93452

The CMS indicators that decide how 93452 is paid alongside other services.

CMS payment indicators · 93452

Left heart cath, left-sided study

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)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical1Diagnostic test with separate professional (26) and technical (TC) components.

What modifiers do to the payment

Modifier 26 · payment effect

With and without the modifier

93452 without 26 · national office

$876.11

Left heart cath, left-sided study

93452-26 · Professional component

$231.13

Pays only the interpretation and report.

When to use modifier 26

Codes related to 93452

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

Codes related to 93452
CodeHow it relatesOffice range, King County, WA
Same family
93451Right heart cath, hemodynamic measurementsA related catheterization code for a right-heart study without left-heart catheterization.$1,024.65
93453Heart catheterization, right and left with ventriculographyIncludes right- and left-heart catheterization with ventricular imaging when performed.$1,317.46
Used instead
93454Coronary angiography, without graft or left-heart catheterizationDescribes coronary angiography without the left-heart catheterization reported by 93452.$1,038.24
93458Coronary catheterization, left heart, native coronariesUse for left-heart catheterization performed with coronary angiography.$1,191.57
93460Heart catheterization, right and left heart with coronary imagingDescribes right- and left-heart catheterization with coronary angiography.$1,419.40

How 93452 has changed in King County, WA

93452 · Office / nonfacility

$1036.70

Effective 2026-10-01

The base rate is $60.18 higher than on 2025-10-01, moving from $976.52 to $1036.70 (6.2%).

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

    $976.52changed to$1036.70

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 4.50 changed to 4.39
    • Practice expense RVU 20.29 changed to 20.94
    • Malpractice RVU 0.87 changed to 0.90
    • Work GPCI 1.043 changed to 1.050
    • Practice expense GPCI 1.220 changed to 1.227
    • Malpractice GPCI 0.853 changed to 0.817

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $1039.49changed to$976.52

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 21.12 changed to 20.29
    • Malpractice RVU 0.90 changed to 0.87

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $1022.52changed to$1039.49

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $1067.57changed to$1022.52

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 21.66 changed to 21.12
    • Malpractice RVU 0.84 changed to 0.90
    • Work GPCI 1.039 changed to 1.043
    • Practice expense GPCI 1.207 changed to 1.220
    • Malpractice GPCI 0.815 changed to 0.853

  5. January 1, 2023

    RVU23A

    $1117.68changed to$1067.57

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 22.56 changed to 21.66
    • Malpractice RVU 0.90 changed to 0.84
    • Work GPCI 1.036 changed to 1.039
    • Practice expense GPCI 1.194 changed to 1.207
    • Malpractice GPCI 0.776 changed to 0.815

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $1135.32changed to$1117.68

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 22.80 changed to 22.56
    • Malpractice RVU 0.84 changed to 0.90

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $1061.89changed to$1135.32

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 20.57 changed to 22.80
    • Work GPCI 1.031 changed to 1.036
    • Practice expense GPCI 1.170 changed to 1.194
    • Malpractice GPCI 0.854 changed to 0.776

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $989.88changed to$1061.89

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 19.22 changed to 20.57
    • Malpractice RVU 0.88 changed to 0.84
    • Work GPCI 1.027 changed to 1.031
    • Practice expense GPCI 1.146 changed to 1.170
    • Malpractice GPCI 0.931 changed to 0.854

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $944.65changed to$989.88

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 18.15 changed to 19.22

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $931.50changed to$944.65

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 18.00 changed to 18.15
    • Malpractice RVU 0.87 changed to 0.88
    • Work GPCI 1.026 changed to 1.027
    • Practice expense GPCI 1.151 changed to 1.146
    • Malpractice GPCI 0.713 changed to 0.931

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $990.77changed to$931.50

    • Conversion factor 35.8043 changed to 35.8887
    • Work RVU 4.75 changed to 4.50
    • Practice expense RVU 19.34 changed to 18.00
    • Malpractice RVU 0.94 changed to 0.87
    • Work GPCI 1.025 changed to 1.026
    • Practice expense GPCI 1.155 changed to 1.151
    • Malpractice GPCI 0.495 changed to 0.713

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $996.71changed to$990.77

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 19.38 changed to 19.34
    • Malpractice RVU 0.98 changed to 0.94

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $991.75changed to$996.71

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $981.12changed to$991.75

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 18.96 changed to 19.38
    • Malpractice RVU 1.04 changed to 0.98
    • Practice expense GPCI 1.150 changed to 1.155
    • Malpractice GPCI 0.688 changed to 0.495

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $1007.91changed to$981.12

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 20.80 changed to 18.96
    • Malpractice RVU 1.09 changed to 1.04
    • Practice expense GPCI 1.144 changed to 1.150
    • Malpractice GPCI 0.881 changed to 0.688

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $1007.91

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$1,036.70Not available in this settingRVU26D
2026-07-01$1,036.70Not available in this settingRVU26C
2026-04-01$1,036.70Not available in this settingRVU26B
2026-01-01$1,036.70Not available in this settingRVU26A
2025-10-01$976.52Not available in this settingRVU25D
2025-07-01$976.52Not available in this settingRVU25C
2025-04-01$976.52Not available in this settingRVU25B
2025-01-01$976.52Not available in this settingRVU25A
2024-10-01$1,039.49Not available in this settingRVU24D
2024-07-01$1,039.49Not available in this settingRVU24C
2024-04-01$1,039.49Not available in this settingRVU24B
2024-03-09$1,039.49Not available in this settingRVU24AR
2024-01-01$1,022.52Not available in this settingRVU24A
2023-10-01$1,067.57Not available in this settingRVU23D
2023-07-01$1,067.57Not available in this settingRVU23C
2023-04-01$1,067.57Not available in this settingRVU23B
2023-01-01$1,067.57Not available in this settingRVU23A
2022-10-01$1,117.68Not available in this settingRVU22D
2022-07-01$1,117.68Not available in this settingRVU22C
2022-04-01$1,117.68Not available in this settingRVU22B
2022-01-01$1,117.68Not available in this settingRVU22A
2021-10-01$1,135.32Not available in this settingRVU21D
2021-07-01$1,135.32Not available in this settingRVU21C
2021-04-01$1,135.32Not available in this settingRVU21B
2021-01-01$1,135.32Not available in this settingRVU21A
2020-10-01$1,061.89Not available in this settingRVU20D
2020-07-01$1,061.89Not available in this settingRVU20C
2020-04-01$1,061.89Not available in this settingRVU20B
2020-01-01$1,061.89Not available in this settingRVU20A
2019-10-01$989.88Not available in this settingRVU19D
2019-07-01$989.88Not available in this settingRVU19C
2019-04-01$989.88Not available in this settingRVU19B
2019-01-01$989.88Not available in this settingRVU19A
2018-10-01$944.65Not available in this settingRVU18D
2018-07-01$944.65Not available in this settingRVU18C
2018-04-01$944.65Not available in this settingRVU18B
2018-01-01$944.65Not available in this settingRVU18AR1
2017-10-01$931.50Not available in this settingRVU17D
2017-07-01$931.50Not available in this settingRVU17C
2017-04-01$931.50Not available in this settingRVU17B
2017-01-01$931.50Not available in this settingRVU17A
2016-10-01$990.77Not available in this settingRVU16D
2016-07-01$990.77Not available in this settingRVU16C
2016-04-01$990.77Not available in this settingRVU16B
2016-01-01$990.77Not available in this settingRVU16A
2015-10-01$996.71Not available in this settingRVU15D
2015-07-01$996.71Not available in this settingRVU15C
2015-04-01$991.75Not available in this settingRVU15B
2015-01-01$991.75Not available in this settingRVU15A
2014-10-01$981.12Not available in this settingRVU14D
2014-07-01$981.12Not available in this settingRVU14C
2014-04-01$981.12Not available in this settingRVU14B
2014-01-01$981.12Not available in this settingRVU14A
2013-10-01$1,007.91Not available in this settingRVU13D
2013-07-01$1,007.91Not available in this settingRVU13C
2013-04-01$1,007.91Not available in this settingRVU13B
2013-01-01$1,007.91Not available in this settingRVU13AR

Price 93452 for an earlier date of service

Where the King County, WA rate applies

King County, WA is a Medicare payment area, not a city. Our Census mapping connects it to 63 cities and communities in Washington. Some span more than one payment area; confirm with the service ZIP.

  • Seattle
  • Algona
  • Ames Lake
  • 93452 in Auburn · multiple payment areas
  • Baring
  • Beaux Arts Village
  • Bellevue
  • Black Diamond

Browse all communities in Washington

93452 billing questions

When should 93452 be used instead of 93458?

Use 93452 for the left heart catheterization without coronary angiography. When coronary angiography is also performed, 93458 describes the combined service.

Does 93452 require ventriculography?

No. Ventricular imaging may be performed as part of the study, but the code can be reported when ventriculography is not performed.

How are the professional and technical components billed?

Use modifier 26 for the professional interpretation and modifier TC for the technical component. Billing without either modifier represents the global service.

Can modifier 50 be reported?

No. CMS identifies bilateral adjustment as inappropriate for this code and anatomy.

How does the multiple-procedure rule affect payment?

For procedures performed in the same session, the highest-valued procedure is paid in full and the other procedures are paid at 50%. Same-day preoperative and postoperative care is included in this code's 0-day global period.

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 93452PPRRVU2026_Oct_nonQPP.csv, line 12,094 (RVU26D)
Geographic factors for King County, WAGPCI2026.csv, line 108 (RVU26D)

Open CMS sourceHow we calculate rates

Did this answer your question about what 93452 pays in King County, WA?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets · Coming soon

Put 93452 and the rest of your codes on one sheet

Your codes at your locality, with payer contracts beside Medicare.

Join the waitlist