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Official Description

Comprehensive electrophysiologic evaluation with insertion and repositioning of multiple electrode catheters, induction or attempted induction of an arrhythmia with right atrial pacing and recording and catheter ablation of arrhythmogenic focus, including intracardiac electrophysiologic 3-dimensional mapping, right ventricular pacing and recording, left atrial pacing and recording from coronary sinus or left atrium, and His bundle recording, when performed; with treatment of supraventricular tachycardia by ablation of fast or slow atrioventricular pathway, accessory atrioventricular connection, cavo-tricuspid isthmus or other single atrial focus or source of atrial re-entry

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A comprehensive electrophysiologic evaluation, designated by CPT® Code 93653, involves a detailed assessment of the heart's electrical activity through the use of multiple electrode catheters. This procedure is essential for diagnosing and treating various types of arrhythmias, particularly supraventricular tachycardia. The process begins with the insertion and repositioning of these catheters, which are equipped with recording and stimulating electrodes. These electrodes are strategically placed in the right atrium, right ventricle, and left atrium or coronary sinus to monitor and induce arrhythmias. The evaluation includes right atrial pacing and recording, as well as intracardiac electrophysiologic three-dimensional mapping, which allows for a comprehensive understanding of the heart's electrical pathways. During the procedure, the skin is punctured or a small incision is made, typically in the groin area, to access the blood vessels. The catheters are then threaded through these vessels into the heart. The electrophysiologic study aims to induce arrhythmias through pacing at various rates or programmed stimulation, which helps identify the specific arrhythmogenic focus. Once located, catheter ablation is performed to eliminate the source of the arrhythmia, utilizing techniques such as radiofrequency energy, microwave energy, or cryoablation. This thorough evaluation and treatment process is crucial for managing arrhythmias effectively and ensuring patient safety.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The comprehensive electrophysiologic evaluation with catheter ablation, as described by CPT® Code 93653, is indicated for the following conditions:

  • Supraventricular Tachycardia - This includes the treatment of fast or slow atrioventricular pathways, accessory atrioventricular connections, or other atrial foci that contribute to the arrhythmia.

2. Procedure

The procedure involves several critical steps to ensure a thorough electrophysiologic evaluation and effective treatment of arrhythmias:

  • Step 1: Insertion of Electrode Catheters - The procedure begins with the insertion of multiple electrode catheters. A small incision or puncture is made, typically in the groin area, to access the blood vessels. The catheters are then carefully threaded through these vessels into the heart, specifically targeting the right atrium, right ventricle, and left atrium or coronary sinus.
  • Step 2: Pacing and Recording - Once the catheters are in place, right atrial pacing and recording are performed. The recording electrode catheters measure the heart's electrical activity, while the stimulating electrode catheters deliver pacing impulses to induce or attempt to induce an arrhythmia. This step is crucial for identifying the arrhythmogenic focus.
  • Step 3: Intracardiac Electrophysiologic Mapping - Intracardiac electrophysiologic three-dimensional mapping may be conducted during the procedure. This involves taking simultaneous recordings from multiple electrodes on the same catheter, allowing for a detailed computer reconstruction of the tachycardia sequence. This mapping is essential for pinpointing the exact location of the arrhythmogenic focus.
  • Step 4: Catheter Ablation - After identifying the arrhythmogenic focus, an ablation catheter is advanced to the site. The ablation process involves applying radiofrequency electrical energy, microwave energy, or cryoablation to the cardiac tissue. This energy disrupts the electrical pathways responsible for the arrhythmia, effectively ablating the focus.
  • Step 5: Post-Ablation Testing - Following the ablation, testing is performed to ensure that the tachycardia cannot be induced again. This step is critical to confirm the success of the procedure and the elimination of the arrhythmogenic focus.

3. Post-Procedure

After the comprehensive electrophysiologic evaluation and catheter ablation, patients may require monitoring to assess recovery and ensure that no arrhythmias are induced. The healthcare team will typically observe the patient for any immediate complications and provide instructions for post-procedure care. Follow-up appointments may be scheduled to evaluate the long-term effectiveness of the ablation and to monitor the patient's heart rhythm. It is essential for patients to report any unusual symptoms or concerns during their recovery period.

Short Descr COMPRE EP EVAL TX SVT
Medium Descr COMPRE EP EVAL ABLTJ 3D MAPG TX SVT
Long Descr Comprehensive electrophysiologic evaluation with insertion and repositioning of multiple electrode catheters, induction or attempted induction of an arrhythmia with right atrial pacing and recording and catheter ablation of arrhythmogenic focus, including intracardiac electrophysiologic 3-dimensional mapping, right ventricular pacing and recording, left atrial pacing and recording from coronary sinus or left atrium, and His bundle recording, when performed; with treatment of supraventricular tachycardia by ablation of fast or slow atrioventricular pathway, accessory atrioventricular connection, cavo-tricuspid isthmus or other single atrial focus or source of atrial re-entry
Status Code Active Code
Global Days 000 - Endoscopic or Minor Procedure
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P2F - Major procedure, cardiovascular-Other
MUE 1
CCS Clinical Classification 225 - Conversion of cardiac rhythm

This is a primary code that can be used with these additional add-on codes.

93462 Addon Code MPFS Status: Active Code APC N ASC N1 Left heart catheterization by transseptal puncture through intact septum or by transapical puncture (List separately in addition to code for primary procedure)
93609 Addon Code MPFS Status: Carrier Priced APC N PUB 100 CPT Assistant Article Illustration for Code Intraventricular and/or intra-atrial mapping of tachycardia site(s) with catheter manipulation to record from multiple sites to identify origin of tachycardia (List separately in addition to code for primary procedure)
93622 Addon Code MPFS Status: Carrier Priced APC N PUB 100 CPT Assistant Article Illustration for Code Comprehensive electrophysiologic evaluation including insertion and repositioning of multiple electrode catheters with induction or attempted induction of arrhythmia; with left ventricular pacing and recording (List separately in addition to code for primary procedure)
93623 Addon Code MPFS Status: Carrier Priced APC N PUB 100 CPT Assistant Article Illustration for Code Programmed stimulation and pacing after intravenous drug infusion (List separately in addition to code for primary procedure)
93655 Addon Code MPFS Status: Active Code APC N Intracardiac catheter ablation of a discrete mechanism of arrhythmia which is distinct from the primary ablated mechanism, including repeat diagnostic maneuvers, to treat a spontaneous or induced arrhythmia (List separately in addition to code for primary procedure)
93662 Addon Code MPFS Status: Carrier Priced APC N PUB 100 CPT Assistant Article Intracardiac echocardiography during therapeutic/diagnostic intervention, including imaging supervision and interpretation (List separately in addition to code for primary procedure)
GC This service has been performed in part by a resident under the direction of a teaching physician
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
CR Catastrophe/disaster related
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
25 Significant, separately identifiable evaluation and management service by the same physician or other qualified health care professional on the same day of the procedure or other service: it may be necessary to indicate that on the day a procedure or service identified by a cpt code was performed, the patient's condition required a significant, separately identifiable e/m service above and beyond the other service provided or beyond the usual preoperative and postoperative care associated with the procedure that was performed. a significant, separately identifiable e/m service is defined or substantiated by documentation that satisfies the relevant criteria for the respective e/m service to be reported (see evaluation and management services guidelines for instructions on determining level of e/m service). the e/m service may be prompted by the symptom or condition for which the procedure and/or service was provided. as such, different diagnoses are not required for reporting of the e/m services on the same date. this circumstance may be reported by adding modifier 25 to the appropriate level of e/m service. note: this modifier is not used to report an e/m service that resulted in a decision to perform surgery. see modifier 57 for significant, separately identifiable non-e/m services, see modifier 59.
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
AO Alternate payment method declined by provider of service
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
Q0 Investigational clinical service provided in a clinical research study that is in an approved clinical research study
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
Q5 Service furnished under a reciprocal billing arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
RT Right side (used to identify procedures performed on the right side of the body)
TG Complex/high tech level of care
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
Date
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Notes
2022-01-01 Changed Code description changed.
2017-01-01 Changed Moderate (Conscious) Sedation flag removed. See new Moderate Sedation category.
2014-01-01 Changed Description Changed
2013-01-01 Added Added
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