Summary & Overview
CPT 93600: His-Bundle Electrophysiologic Recording
CPT code 93600 denotes a diagnostic electrophysiologic recording of the heart’s conduction system at the bundle of His. This specialized test documents the electrical signals responsible for coordinating heartbeats and supports evaluation of conduction abnormalities, syncope, or arrhythmias. Nationally, accurate coding for this procedure affects clinical workflow, episode-of-care documentation, and interactions with major payers.
Key payers examined include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what CPT code 93600 represents, the typical clinical and facility contexts where it is performed, and the payer landscape relevant to coverage and claims processing. The publication summarizes available benchmarks, notes recent policy or reimbursement considerations where applicable, and situates the procedure within broader cardiac electrophysiology practice.
This analysis is intended for clinicians, coding professionals, and health plan administrators seeking a clear, national-level understanding of the code’s clinical meaning, billing context, and payer relevance. Data not available in the input will be identified as such in the detailed sections.
Billing Code Overview
CPT code 93600 describes a recording of the electrical activity in the heart that controls the heartbeat, specifically in the area called the bundle of His. This procedure captures conduction system signals to evaluate impulse formation and propagation within the specialized conduction tissue.
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Service type: Diagnostic electrophysiologic recording of the bundle of His
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Typical site of service: Cardiology or electrophysiology laboratory, outpatient hospital setting, or specialized cardiac diagnostic facility
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Clinical & Coding Specifications
Clinical Context
A 68-year-old male with symptomatic bradycardia and intermittent syncope is referred to the cardiac electrophysiology laboratory for an invasive electrophysiology (EP) study including His bundle electrogram recording. The patient arrives to the ambulatory cardiac catheterization/EP suite after pre-procedure history, physical, and informed consent. Vascular access (usually femoral venous) is obtained under sterile technique. A multipolar intracardiac recording catheter is advanced to the region of the bundle of His to record His bundle electrograms and assess atrioventricular conduction, HV interval, and conduction disturbances. Simultaneous surface electrocardiography and intracardiac tracings are recorded. The provider documents indications (e.g., unexplained syncope, suspected infra-Hisian block, evaluation prior to device implantation), catheter placement, intrinsic intervals (AH, HV), any pacing or provocative maneuvers, and complications. Typical sites of service are the hospital-based electrophysiology lab or an ambulatory surgical center. The encounter often precedes therapeutic procedures such as pacemaker implantation or ablation depending on findings.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when only the physician interpretation/technical reading is billed separately from technical component. |