CPT code 93603: Ventricular recording, right ventricle2026 Medicare rate & RVUs in Texas
Reports electrical recording from within the right ventricle during an invasive electrophysiology study to evaluate cardiac conduction or arrhythmia.
CMS doesn’t publish an office rate for 93603 in Texas.
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 93603 covers
This service captures electrical activity from inside the right ventricle through an electrode catheter during an invasive cardiac electrophysiology study. An electrophysiologist typically performs or interprets the study in a cardiac electrophysiology laboratory. The recording assesses ventricular electrical activation and may be obtained alongside other intracardiac recordings or pacing during evaluation of arrhythmias or conduction abnormalities.
Medicare assigns physician fee schedule status C (carrier priced): CMS publishes no national payment, and the Medicare Administrative Contractor sets payment for each claim. Modifier 26 identifies the professional interpretation, and modifier TC identifies the technical service; without either modifier, the claim represents the global service. The test has a 0-day global period, with same-day preoperative and postoperative care included. Modifier 50 is inappropriate for this service. Assistant-at-surgery payment requires documentation of 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 93603 pays more and less in Texas
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
8 of 8 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Austin, TX | Unavailable | Unavailable |
| Beaumont, TX | Unavailable | Unavailable |
| Brazoria, TX | Unavailable | Unavailable |
| Dallas, TX | Unavailable | Unavailable |
| Fort Worth, TX | Unavailable | Unavailable |
| Galveston, TX | Unavailable | Unavailable |
| Houston, TX | Unavailable | Unavailable |
| Rest of Texas | Unavailable | Unavailable |
How the 93603 rate is calculated
Each of 93603’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 · 93603
RVUs × geographic indexes × conversion factor
Work0.00
0.00 RVUs× 1.000 GPCI
Practice expense0.00
0.00 RVUs× 1.000 GPCI
Malpractice0.00
0.00 RVUs× 1.000 GPCI
Adjusted RVUs
0.0000
Conversion factor
$33.4009
Medicare rate
$0.00
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 93603
The CMS indicators that decide how 93603 is paid alongside other services.
CMS payment indicators · 93603
Ventricular recording, right ventricle
| 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 | 0 | No multiple-procedure reduction. |
| 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
93603 without 26 · national facility
$0.00
Ventricular recording, right ventricle
93603-26 · Professional component
$112.23
Pays only the interpretation and report.
93603 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 93600His bundle recordingIntracardiac signal
- Use 93603 for right ventricular recording; 93600 identifies His bundle recording.
- 93602Atrial recordingIntracardiac
- Use 93603 for right ventricular recording; 93602 identifies intra-atrial recording.
- 93612Ventricular pacingElectrophysiology study
- 93603 describes right ventricular recording, while 93612 describes intraventricular pacing.
- 93619EP evaluationWithout arrhythmia induction
- Code 93619 represents a comprehensive electrophysiologic evaluation; 93603 identifies a specific right ventricular recording service.
93603 billing questions
How is right ventricular recording different from code 93602?
Code 93603 records electrical activity from the right ventricle. Code 93602 records activity from inside the atrium.
How is recording different from code 93612?
Code 93603 describes right ventricular recording; code 93612 describes intraventricular pacing.
Which modifiers identify the professional and technical portions?
Modifier 26 identifies the professional interpretation, and modifier TC identifies the technical service. Without either modifier, the claim represents the global service.
Does modifier 50 apply?
No. Modifier 50 is inappropriate for this service.
How does Medicare determine payment?
The code has physician fee schedule status C. The Medicare Administrative Contractor sets payment for each claim; CMS publishes no national payment.
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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