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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 ventricular tachycardia or focus of ventricular ectopy including left ventricular pacing and recording, when performed

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A comprehensive electrophysiologic evaluation (EPS) is a specialized procedure designed to assess and treat abnormal heart rhythms, known as arrhythmias. This procedure involves the insertion and repositioning of multiple electrode catheters, which are thin, flexible tubes equipped with electrodes that can both record electrical activity and deliver electrical impulses to the heart. The primary goal of the EPS is to induce or attempt to induce an arrhythmia through right atrial pacing and recording, allowing healthcare professionals to study the heart's electrical conduction system in detail. This evaluation is crucial for identifying the specific arrhythmogenic focus, or the area of the heart responsible for the abnormal rhythm. During the procedure, intracardiac electrophysiologic 3-dimensional mapping may be utilized, which involves creating a detailed computer-generated model of the heart's electrical activity. This mapping helps in pinpointing the exact location of the arrhythmia. The procedure may also include right ventricular pacing and recording, as well as left atrial pacing and recording from the coronary sinus or left atrium, and potentially His bundle recording, which provides additional insights into the heart's conduction pathways. Once the arrhythmogenic focus is identified, catheter ablation is performed. This involves applying energy—such as radiofrequency, microwave, or cryoablation—to destroy the tissue causing the arrhythmia, thereby interrupting the abnormal electrical signals. The procedure is comprehensive, as it not only aims to treat life-threatening ventricular tachycardia or a focus of ventricular ectopy but also ensures that the arrhythmia cannot be induced again after the ablation. This thorough approach is essential for effective management of patients with significant arrhythmias, enhancing their safety and quality of life.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The comprehensive electrophysiologic evaluation with catheter ablation is indicated for patients experiencing specific arrhythmias that may pose significant health risks. The following conditions warrant this procedure:

  • Ventricular Tachycardia - A potentially life-threatening rapid heart rhythm originating from the ventricles, which can lead to severe complications if not treated.
  • Focus of Ventricular Ectopy - Abnormal electrical impulses originating from the ventricles that can cause irregular heartbeats and may require intervention to prevent further complications.

2. Procedure

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

  • Step 1: Insertion of Electrode Catheters - The procedure begins with the insertion of multiple electrode catheters through a puncture or small incision, typically made over a blood vessel in the groin. These catheters are carefully threaded through the vascular system into the heart, specifically targeting the right atrium, right ventricle, and left atrium or coronary sinus.
  • Step 2: Pacing and Recording - Once positioned, the catheters are used for pacing and recording electrical activity. Right atrial pacing is performed to induce or attempt to induce an arrhythmia, while recording electrodes measure the heart's electrical signals. This step is crucial for understanding the heart's conduction pathways and identifying the arrhythmogenic focus.
  • Step 3: Intracardiac Electrophysiologic 3D Mapping - During the evaluation, intracardiac electrophysiologic 3D mapping may be conducted. This involves simultaneous recordings from multiple electrodes on the same catheter, allowing for a detailed computer reconstruction of the electrical activity and the sequence of tachycardia. This mapping is essential for accurately locating the arrhythmogenic focus.
  • Step 4: Catheter Ablation - After identifying the arrhythmogenic focus, an ablation catheter is advanced to the site. Energy, such as radiofrequency, microwave, or cryoablation, is applied to the cardiac tissue to ablate the focus, effectively interrupting or destroying the abnormal electrical pathway responsible for the arrhythmia.
  • 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 are typically monitored for any immediate complications. Recovery may involve observation in a hospital setting to ensure stability and assess for any potential arrhythmias. Patients may experience some discomfort at the catheter insertion site, which usually resolves within a few days. Follow-up appointments are essential to evaluate the effectiveness of the procedure and to monitor the patient's heart rhythm over time. Additional testing may be required to confirm that the arrhythmia has been successfully treated and to ensure ongoing cardiac health.

Short Descr COMPRE EP EVAL TX VT
Medium Descr COMPRE EP EVAL ABLTJ 3D MAPG TX VT
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 ventricular tachycardia or focus of ventricular ectopy including left ventricular pacing and recording, when performed
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)
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
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.
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.
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.
62 Two surgeons: when 2 surgeons work together as primary surgeons performing distinct part(s) of a procedure, each surgeon should report his/her distinct operative work by adding modifier 62 to the procedure code and any associated add-on code(s) for that procedure as long as both surgeons continue to work together as primary surgeons. each surgeon should report the co-surgery once using the same procedure code. if additional procedure(s) (including add-on procedure(s) are performed during the same surgical session, separate code(s) may also be reported with modifier 62 added. note: if a co-surgeon acts as an assistant in the performance of additional procedure(s), other than those reported with the modifier 62, during the same surgical session, those services may be reported using separate procedure code(s) with modifier 80 or modifier 82 added, as appropriate.
74 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure after administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may terminate a surgical or diagnostic procedure after the administration of anesthesia (local, regional block(s), general) or after the procedure was started (incision made, intubation started, scope inserted, etc). under these circumstances, the procedure started but terminated can be reported by its usual procedure number and the addition of modifier 74. note: the elective cancellation of a service prior to the administration of anesthesia and/or surgical preparation of the patient should not be reported. for physician reporting of a discontinued procedure, see modifier 53.
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.
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).
81 Minimum assistant surgeon: minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
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
CG Policy criteria applied
CR Catastrophe/disaster related
GE This service has been performed by a resident without the presence of a teaching physician under the primary care exception
GW Service not related to the hospice patient's terminal condition
KX Requirements specified in the medical policy have been met
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
TG Complex/high tech level of care
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
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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