CPT code 93453: Heart catheterization, right and left with ventriculography2026 Medicare rate & RVUs in California
Reports right- and left-sided cardiac catheterization with left ventricular imaging when the diagnostic study does not include coronary angiography.
Medicare pays $1,184.66–$1,507.55 for 93453 in the office in California, from Chico, CA to San Benito County, CA. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 9 sections
What 93453 covers
An interventional cardiologist typically performs this diagnostic study in a cardiac catheterization laboratory. Catheters are used to assess pressures and other hemodynamic findings in the right and left sides of the heart, with contrast imaging of the left ventricle. The code represents the combined study; it is not the choice when the service also includes coronary angiography.
The record should support catheterization of both sides of the heart and the left ventriculography, including the relevant findings and interpretation. The service has a 0-day global period, so same-day preoperative and postoperative care is included. It may be billed globally or as the professional interpretation with modifier 26 or the technical service with modifier TC. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate. 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 93453 pays more and less in California
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
29 payment localities
$1184.66 to $1507.55
29 of 29 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Bakersfield, CA | $1,187.90 | Unavailable |
| Chico, CA | $1,184.66 | Unavailable |
| El Centro, CA | $1,184.86 | Unavailable |
| Fresno, CA | $1,184.66 | Unavailable |
| Hanford, CA | $1,184.66 | Unavailable |
| Los Angeles, CA | $1,270.97 | Unavailable |
| Madera, CA | $1,184.66 | Unavailable |
| Marin County, CA | $1,473.43 | Unavailable |
| Merced, CA | $1,184.66 | Unavailable |
| Modesto, CA | $1,184.66 | Unavailable |
| Napa, CA | $1,388.07 | Unavailable |
| Oxnard, CA | $1,265.95 | Unavailable |
| Redding, CA | $1,184.66 | Unavailable |
| Rest of California | $1,184.66 | Unavailable |
| Riverside, CA | $1,197.24 | Unavailable |
| Sacramento, CA | $1,247.38 | Unavailable |
| Salinas, CA | $1,242.88 | Unavailable |
| San Benito County, CA | $1,507.55 | Unavailable |
| San Diego, CA | $1,275.51 | Unavailable |
| San Francisco, CA | $1,472.10 | Unavailable |
| San Luis Obispo, CA | $1,222.53 | Unavailable |
| Santa Clara County, CA | $1,502.12 | Unavailable |
| Santa Cruz, CA | $1,290.25 | Unavailable |
| Santa Maria, CA | $1,248.46 | Unavailable |
| Santa Rosa, CA | $1,303.46 | Unavailable |
| Stockton, CA | $1,184.66 | Unavailable |
| Vallejo, CA | $1,386.16 | Unavailable |
| Visalia, CA | $1,184.66 | Unavailable |
| Yuba City, CA | $1,184.66 | Unavailable |
How the 93453 rate is calculated
Each of 93453’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 · 93453
RVUs × geographic indexes × conversion factor
Work5.84
5.84 RVUs× 1.000 GPCI
Practice expense26.37
26.37 RVUs× 1.000 GPCI
Malpractice1.17
1.17 RVUs× 1.000 GPCI
Adjusted RVUs
33.3800
Conversion factor
$33.4009
Medicare rate
$1,114.92
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 93453
The CMS indicators that decide how 93453 is paid alongside other services.
CMS payment indicators · 93453
Heart catheterization, right and left with ventriculography
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 000 | Same-day global: pre- and post-op care on the day of the procedure is included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
93453 without 26 · national office
$1,114.92
Heart catheterization, right and left with ventriculography
93453-26 · Professional component
$307.96
Pays only the interpretation and report.
93453 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 93451Right heart cathHemodynamic measurements
- Use 93451 for right-heart catheterization alone. Report 93453 when the diagnostic study also includes left-heart catheterization and left ventriculography.
- 93452Left heart cathLeft-sided study
- 93452 covers left-heart catheterization with ventriculography. The right-heart catheterization is the distinguishing service in 93453.
- 93460Heart catheterizationRight and left heart with coronary imaging
- 93460 includes coronary angiography with the combined right- and left-heart study and ventriculography. Use 93453 when coronary angiography is not part of the study.
- 93458Coronary catheterizationLeft heart, native coronaries
- 93458 includes left-heart catheterization, coronary angiography, and ventriculography, but not right-heart catheterization. 93453 includes right-heart catheterization and does not represent coronary angiography.
93453 billing questions
How is this different from 93452?
93453 includes catheterization of both the right and left sides of the heart with left ventricular imaging. 93452 is the left-sided study with ventriculography, without the right-heart catheterization.
Can this code be used when coronary angiography is performed?
No. When the combined right- and left-heart study includes coronary angiography, consider the applicable code such as 93460 or 93461, based on the angiographic services performed.
Can the professional and technical portions be billed separately?
Yes. Report modifier 26 for the professional interpretation or TC for the technical service. Without either modifier, the claim represents the global service.
What documentation supports reporting this code?
Document catheterization of both the right and left heart, the hemodynamic assessment, the left ventriculography, and the interpreting physician's findings.
Should modifier 50 be appended?
No. The service is not reported as a bilateral procedure, so modifier 50 is inappropriate.
How are other procedures in the same session paid?
Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and the others are paid at 50% when 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
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