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    v1.0.28
    OpenPayerBilling CodesOutpatient PPSHCPCS hcpcs-c1824-cardiac-contractility-modulation-generator-implantable
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    HCPCS C1824: Cardiac Contractility Modulation Generator, Implantable

    HCPCS Level II code C1824 denotes an implantable cardiac contractility modulation generator, a device-based therapeutic system used to deliver non-excitatory electrical signals to the heart to improve myocardial contractility; the service is the supply and implantation of the generator (device) and is typically performed as an implantable device procedure in an inpatient or outpatient cardiac electrophysiology or device clinic setting.

    For related coverage guidance, see recent payer policy updates: Automated Ambulatory Blood Pressure Monitoring for Diagnosis of Hypertension in Patients with Elevated Office Blood Pressure, Cardiology - Ivabradine, Cardiac Computed Tomography (CCT)/Coronary Computed Tomographic Angiography (CCTA).

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult with symptomatic heart failure with reduced ejection fraction who remains symptomatic despite optimized guideline-directed medical therapy and who is evaluated for cardiac contractility modulation (CCM) device implantation. The patient often presents from cardiology or heart failure clinic referral with exertional intolerance, persistent dyspnea, and reduced 6-minute walk distance. Evaluation includes history and physical, echocardiography confirming reduced left ventricular ejection fraction (commonly 25–45%), ECG, and review of medication tolerance. Temporary peri-procedural workflow: preoperative evaluation and medication reconciliation, device selection and programming, conscious sedation or monitored anesthesia care in a cardiac electrophysiology lab or hybrid operating room, transvenous lead placement into the right ventricular septum, connection to the implantable cardiac contractility modulation generator (C1824), intra-procedural device testing and programming, post-procedure chest radiograph to confirm lead position, device interrogation prior to discharge, and scheduled outpatient follow-up for wound check and device optimization. Typical site of service is the hospital outpatient department or ambulatory surgical center with electrophysiology capabilities.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    33249Insertion or replacement of permanent pacemaker with transvenous lead(s); single or dual lead, with programmingMay be performed in similar workflow for transvenous lead placement and device programming techniques used during CCM generator implantation.
    33207Insertion of temporary transvenous electrode(s) for pacing, single or multiple leadsMay be used peri-procedurally if temporary pacing backup is required during lead placement or testing.
    93279Programming device evaluation and reprogramming; analysis, not otherwise specified, with iterative adjustmentsUsed for intraoperative or postoperative device programming and follow-up interrogations of CCM generator.
    71045Radiologic examination, chest; single view, frontalUsed post-procedure to confirm lead and generator position prior to discharge.
    93750Cardiovascular stress test using treadmill, bicycle exercise and continuous ECG monitoring, with physician supervisionMay be used in pre- or post-implant functional assessment of exercise tolerance and device impact.

    Related Modifiers

    5 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    207RC0000XCardiovascular Disease PhysicianAn internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threaten…
    208D00000XGeneral Practice PhysicianA physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
    171M00000XCase Manager/Care CoordinatorA person who provides case management services and assists an individual in gaining access to needed medical, social, educational, and/or other servic…
    2080P0202XPediatric Cardiology PhysicianA pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and…
    2471M1202XMagnetic Resonance Imaging Radiologic TechnologistA radiologic technologist who specializes in magnetic resonance imaging (MRI) and is appropriately educated and trained, consistent with nationally re…
    364SP0200XPediatric Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers · Clinical Nurse Specialist
    163WX0106XOccupational Health Registered NurseNursing Service Providers · Registered Nurse
    207ZD0900XDermatopathology (Pathology) PhysicianA dermatopathologist is an expert in diagnosing and monitoring diseases of the skin including infectious, immunologic, degenerative, and neoplastic di…

    Related ICD-10-CM Codes

    27 rows

    ICD-10-CM CodeDescription
    I11.0Hypertensive heart disease with heart failure
    I13.0Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
    I13.2Hypertensive heart and chronic kidney disease with heart failure and with stage 5 chronic kidney disease, or end stage renal disease
    I25.10Atherosclerotic heart disease of native coronary artery without angina pectoris
    I25.5Ischemic cardiomyopathy
    I34.0Nonrheumatic mitral (valve) insufficiency
    I34.1Nonrheumatic mitral (valve) prolapse
    I42.0Dilated cardiomyopathy
    I42.8Other cardiomyopathies
    I42.9Cardiomyopathy, unspecified

    Showing 1–10 of 27

    Related Payer Policy Updates

    Specialty: Cardiology1 / 3

    10 rows

    PolicyPayerEffective Date
    Automated Ambulatory Blood Pressure Monitoring for Diagnosis of Hypertension in Patients with Elevated Office Blood PressureBluecross Idaho2026-11-01
    Cardiology - IvabradineCigna2026-10-15
    Cardiac Computed Tomography (CCT)/Coronary Computed Tomographic Angiography (CCTA)univerahealthcare2026-10-15
    Percutaneous Ventricular Assist DeviceUnitedHealthcare2026-10-01
    Cardiovascular Disease Risk AssessmentOscar Health2026-10-01
    Biomarkers for Myocardial Infarction and Chronic Heart FailureOscar Health2026-10-01
    Multiple Procedure Payment Reduction for Diagnostic Cardiovascular ProceduresBlue Cross Blue Shield - Maine2026-10-01
    Left Atrial Appendage Closure Devicesexcellus_health_plan_inc2026-09-17
    Left Atrial Appendage Closure Devicesuniverahealthcare2026-09-17
    Cardiac Omnibus CodesCigna2026-09-15

    Related Codes

    HCPCS-C1713-IMPLANTABLE-ANCHOR-SCREW-BONE-FIXATION

    HCPCS C1713: Anchor/Screw for Bone or Soft Tissue Fixation (Implantable)

    HCPCS-C1714-TRANSLUMINAL-DIRECTIONAL-ATHERECTOMY-CATHETER

    HCPCS C1714: Catheter, transluminal atherectomy, directional

    HCPCS-C1715-BRACHYTHERAPY-NEEDLE

    HCPCS C1715: Brachytherapy Needle

    HCPCS-C1716-BRACHYTHERAPY-GOLD-198-SOURCE

    HCPCS C1716: Brachytherapy Source, Gold-198, Per Source

    HCPCS-C1717-HDR-BRACHYTHERAPY-IRIDIUM-192-SOURCE

    HCPCS C1717: HDR Iridium-192 Brachytherapy Source, Per Source

    HCPCS-C1719-BRACHYTHERAPY-IRIDIUM-192-SOURCE-NON-STRANDED

    HCPCS C1719: Brachytherapy Source, Iridium-192, Non-Stranded

    HCPCS-C1721-IMPLANTABLE-DUAL-CHAMBER-CARDIOVERTER-DEFIBRILLATOR

    HCPCS C1721: Cardioverter-Defibrillator, Dual Chamber (Implantable)

    HCPCS-C1724-ROTATIONAL-TRANSLUMINAL-ATHERECTOMY-CATHETER

    HCPCS Level II C1724: Rotational Transluminal Atherectomy Catheter

    HCPCS-C1725-TRANSLUMINAL-ANGIOPLASTY-CATHETER-NON-LASER

    HCPCS Level II C1725: Transluminal Angioplasty Catheter, Non-Laser

    HCPCS-C1726-NON-VASCULAR-BALLOON-DILATATION-CATHETER

    HCPCS C1726: Catheter, Balloon Dilatation, Non-Vascular

    Showing 1–10 of 603

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    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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