Summary & Overview
CPT 0571T: Implant or Replace ICD System With Substernal Electrodes
CPT code 0571T designates implantation or replacement of an implantable cardioverter–defibrillator (ICD) system using substernal electrodes, with necessary intraoperative testing and programming. Substernal ICD systems are an emerging alternative when subcutaneous or transvenous leads are contraindicated or not feasible, making this code relevant for hospitals, electrophysiology practices, and payers as adoption of alternative lead approaches expands nationally. The code matters for device-related surgical billing, perioperative resource planning, and policy decisions around coverage for novel ICD lead placements.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find context on the clinical use case for substernal ICD systems, the typical sites of service where these procedures occur, and the types of documentation and testing activities reflected by the code. The publication summarizes benchmarks and payment practice implications, highlights coding and clinical considerations for implantation and replacement procedures, and notes where input data for specific payers or taxonomies was not provided. This overview equips administrators, coding professionals, and policy analysts with a concise reference for understanding the purpose and setting of CPT code 0571T and where to look for additional payer-specific coverage guidance.
Billing Code Overview
CPT code 0571T describes replacement or implantation of an implantable cardioverter–defibrillator (ICD) system that uses one or more substernal electrodes, including intraoperative testing and programming of the system. The procedure addresses cardiac rhythm disorders by sensing and delivering therapy to regulate heart rate when subcutaneous or transvenous electrode approaches are not feasible.
Service type: Device implantation/replacement with device testing and programming
Typical site of service: Hospital inpatient or hospital outpatient surgical setting, including electrophysiology laboratories equipped for device implantation and intraoperative device testing.
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with ischemic cardiomyopathy, left ventricular ejection fraction 28%, and a history of sustained ventricular tachycardia presents for implantation of a new implantable cardioverter–defibrillator (ICD) system using one or more substernal electrodes. The patient previously had failed transvenous lead placement due to venous occlusion and was not an optimal candidate for a subcutaneous-only system due to body habitus and prior device infections.
Pre-procedure workflow includes preoperative cardiology evaluation, review of prior imaging and venous patency, informed consent specific to substernal electrode placement, and perioperative anesthesia assessment. The procedure is performed in an electrophysiology lab or hybrid operating room with fluoroscopic and intracardiac or epicardial mapping capability. The operator creates a substernal tunnel, places one or more substernal electrodes connected to a subcutaneous pulse generator, performs intraoperative sensing and defibrillation threshold testing as indicated, and programs the device. Postoperative workflow includes device interrogation, chest radiograph as indicated, wound care instructions, and short-term remote monitoring enrollment. Typical site of service is an inpatient or outpatient hospital-based electrophysiology suite or ambulatory surgical center with cardiac monitoring capability.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | When work or complexity substantially greater than typical for the procedure (e.g., extensive dissection, adhesions). |
23 | Unusual anesthesia | When general anesthesia is required for a procedure that normally uses local or monitored anesthesia care. |
50 | Bilateral procedure | Rare for ICD implantation; used when identical procedures are performed bilaterally in same operative session. |
51 | Multiple procedures | When other distinct procedures are billed on same day; indicates multiple procedures performed. |
52 | Reduced services | If procedure was started but intentionally not completed or only partially performed. |
53 | Discontinued procedure | When the procedure is terminated due to extenuating circumstances prior to completion. |
59 | Distinct procedural service | To indicate a separate and distinct procedure not normally billed together (use cautiously with other device codes). |
62 | Two surgeons | When two surgeons work together as primary surgeons during the procedure. |
78 | Return to OR for related procedure during postoperative period | For reopening the surgical site for a related complication during the global period. |
79 | Unrelated procedure or service by same physician during global period | When an unrelated procedure is performed during the global period (note: 79 is not in provided list; omitted) |
80 | Assistant surgeon | When an assistant surgeon is documented and is eligible to bill. |
81 | Minimum assistant surgeon | When minimal assistance is provided and documented. |
82 | Assistant surgeon (when qualified resident not available) | When a nonphysician resident assistant is not available and an assistant is required. |
AS | Physician assistant, nurse practitioner, or clinical nurse specialist service | To indicate services performed by an accredited assistant where applicable. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207RH0000X | Cardiac Electrophysiology | Electrophysiologists most commonly perform ICD implantation and substernal lead placement. |
207RC0000X | Cardiovascular Disease | Interventional cardiologists or cardiologists managing device therapy and follow-up. |
163WL0500X | Thoracic Surgery | Thoracic surgeons may assist for substernal dissection or complex chest access. |
331K00000X | Cardiac Surgery | Cardiac surgeons may be involved for combined procedures or surgical backup. |
208800000X | Emergency Medicine | Rarely involved for urgent device revisions or complications requiring immediate intervention. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
I49.01 | Ventricular fibrillation | Indicates malignant ventricular arrhythmia that may require ICD therapy for termination and prevention of sudden cardiac death. |
I46.9 | Cardiac arrest, cause unspecified | Cardiac arrest survivors with risk of recurrent ventricular arrhythmia may be candidates for ICD implantation. |
I50.22 | Chronic systolic (congestive) heart failure | Reduced ejection fraction heart failure is a common indication for ICD placement for primary prevention. |
I42.0 | Dilated cardiomyopathy | Structural cardiomyopathy with arrhythmic risk often leads to ICD consideration. |
I25.10 | Atherosclerotic heart disease of native coronary artery without angina pectoris | Ischemic cardiomyopathy from coronary disease can result in reduced EF and indication for ICD. |
Z45.02 | Encounter for adjustment and management of implantable cardioverter-defibrillator (ICD) | Used for device programming and follow-up visits after implantation. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
33249 | Insertion or replacement of permanent pacemaker with transvenous lead(s); single or dual chamber, with subcutaneous pulse generator, initial or replacement | May be performed when traditional transvenous pacing/ICD systems are feasible; alternative device types in same clinical algorithm. |
33240 | Insertion of single-lead transvenous pacemaker system; atrial or ventricular | Used when transvenous single-lead pacing is indicated instead of substernal ICD leads. |
33207 | Insertion or replacement of permanent pacemaker with transvenous electrode(s), dual lead, epicardial or transvenous, with subcutaneous pulse generator | Related pacing procedures that may be performed instead of or prior to ICD implantation. |
33260 | Revision or removal of pacemaker or ICD pulse generator only | Performed when generator exchange or upgrade is needed without lead revision; may precede substernal system implantation. |
33262 | Revision or removal of subcutaneous or substernal lead(s) of implanted pacemaker or ICD | Directly related when existing substernal or subcutaneous leads require revision or removal in the same surgical episode. |
93799 | Unlisted cardiovascular service or procedure | Used for novel or unlisted electrophysiology procedures or adjunctive services not described by existing codes when necessary. |