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CPT code 93603: Ventricular recording, right ventricle2026 Medicare rate & RVUs

Reports electrical recording from within the right ventricle during an invasive electrophysiology study to evaluate cardiac conduction or arrhythmia.

CMS RVU26DEffective Oct 1, 2026109 payment localities330 Medicare services in 2024

Medicare rate · 93603

Ventricular recording, right ventricle

Office or facility?

Work RVUs
0
Total RVUs
0.00
Global days
000

National rate · 2026

—

Not priced in the facility setting.

See every locality for 93603 →Billed by an NP, PA or therapist? →

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

Your location

Medicare pays by the payment locality where the service is performed.

On this page 10 sections
  1. Medicare rate
  2. What 93603 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

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

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

93603 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailableUnavailable
AlaskaUnavailableUnavailable
ArizonaUnavailableUnavailable
ArkansasUnavailableUnavailable
Atlanta, GAUnavailableUnavailable
Austin, TXUnavailableUnavailable
Bakersfield, CAUnavailableUnavailable
Baltimore area, MDUnavailableUnavailable
Beaumont, TXUnavailableUnavailable
Brazoria, TXUnavailableUnavailable

93603 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.

View every state and territory as a table
93603 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

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

Office or facility?

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

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures0No multiple-procedure reduction.
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

93603 without 26 · national facility

$0.00

Ventricular recording, right ventricle

93603-26 · Professional component

$112.23

Pays only the interpretation and report.

When to use modifier 26

93603 compared with similar codes

Compare codes · National

5 codes, side by side

Office or facility?

  • 93603

    Ventricular recording, right ventricle0 wRVU

    Not priced

  • 93600

    His bundle recording, intracardiac signal0 wRVU

    Not priced

  • 93602

    Atrial recording, intracardiac0 wRVU

    Not priced

  • 93612

    Ventricular pacing, electrophysiology study0 wRVU

    Not priced

  • 93619

    EP evaluation, without arrhythmia induction0 wRVU

    Not priced

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.

Codes related to 93603

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

Codes related to 93603
CodeHow it relatesNational office range
Often billed with
93600His bundle recording, intracardiac signalHis bundle recording may be reported during the same electrophysiology encounter.No office rate
93602Atrial recording, intracardiacIntra-atrial recording may be reported during the same electrophysiology encounter.No office rate
93612Ventricular pacing, electrophysiology studyIntraventricular pacing may be performed during the same electrophysiology encounter.No office rate

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

Open CMS sourceHow we calculate rates

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