CPT® Code 0453T

Official Description

Insertion or replacement of a permanently implantable aortic counterpulsation ventricular assist system, endovascular approach, and programming of sensing and therapeutic parameters; mechano-electrical skin interface

Common Language Description

The procedure described by CPT® Code 0453T involves the insertion or replacement of a permanently implantable aortic counterpulsation ventricular assist system using an endovascular approach. This advanced medical intervention is designed to support patients with severe cardiac conditions, particularly those experiencing acute cardiogenic shock or end-stage chronic heart failure. The aortic counterpulsation system consists of a pneumatic pump that operates in conjunction with a console, which drives the pump using pressurized air. This system is synchronized with the patient's heartbeat through electrodes, allowing for precise timing in the pump's operation. During ventricular systole, the pump fills, which reduces the workload of the left ventricle by decreasing afterload. Conversely, during ventricular diastole, the pump ejects, thereby enhancing cardiac output and improving blood flow to both the coronary and systemic circulation. The procedure begins with an incision made in the right chest along the infraclavicular line, where the pump is placed into a subcutaneous pocket above the pectoralis muscle. A pneumatic drive line is then tunneled through the skin to the right upper quadrant of the abdomen, connecting to the console. The interposition vascular graft is anastomosed to the subclavian artery, and the main graft is linked to the pump. After the system is assembled, air is evacuated, and the device is activated. Electrocardiogram electrodes are strategically positioned on the chest wall and connected to the console, or mechano-electrical skin interface electrodes are placed on the wrist, finger, or ankle to capture the heartbeat and synchronize the pump's function. The surgical site is monitored for bleeding, and hemostatic sealing agents may be applied as needed before closing the incisions. In cases where replacement of the device is necessary, a similar incision is made to access the pump and vascular graft, allowing for the clamping, excision, and replacement of the device as initially inserted. This procedure is critical for patients requiring mechanical support for their heart function, providing a means to improve hemodynamic stability and overall patient outcomes.

1. Indications

The procedure described by CPT® Code 0453T is indicated for patients experiencing severe cardiac conditions that necessitate mechanical support. The specific indications include:

Acute Cardiogenic Shock A life-threatening condition where the heart suddenly cannot pump enough blood to meet the body's needs, often requiring immediate intervention.
End-Stage Chronic Heart Failure A progressive condition where the heart's ability to pump blood is severely compromised, leading to significant symptoms and reduced quality of life.

2. Procedure

The procedure for the insertion or replacement of a permanently implantable aortic counterpulsation ventricular assist system involves several critical steps:

Step 1: Incision and Access An incision is made in the right chest along the infraclavicular line to provide access for the placement of the pump. This incision allows the surgeon to create a subcutaneous pocket above the pectoralis muscle where the pump will be positioned.
Step 2: Pump Placement The pneumatic pump is carefully placed into the subcutaneous pocket. This positioning is crucial for the proper functioning of the device and its integration with the patient's anatomy.
Step 3: Pneumatic Drive Line Tunneling A pneumatic drive line is tunneled out through the skin in the right upper quadrant of the abdomen. This drive line connects the pump to the console, which is essential for the operation of the device.
Step 4: Vascular Graft Anastomosis An interposition vascular graft is anastomosed to the subclavian artery. This connection is vital for ensuring that the pump can effectively assist the heart by managing blood flow.
Step 5: System Activation The main graft is connected to the pump, and air is removed from the system. The device is then cycled on to begin its operation, providing mechanical support to the heart.
Step 6: Electrocardiogram Electrode Placement Subcutaneous electrocardiogram electrodes are positioned on the chest wall and connected to the console. Additionally, mechano-electrical skin interface electrodes may be placed over the wrist, finger, or ankle to capture the heartbeat and synchronize the pump's function.
Step 7: Site Inspection and Closure The graft site is inspected for any signs of bleeding, and implantable hemostatic sealing agents may be applied as necessary. Finally, the incisions are closed to complete the procedure.

3. Post-Procedure

After the procedure, patients are typically monitored for any complications, including bleeding or infection at the incision sites. Continuous assessment of the device's function and the patient's hemodynamic status is essential. Patients may require adjustments to the programming of the sensing and therapeutic parameters of the device to optimize its performance. Follow-up care will include regular evaluations to ensure the proper functioning of the aortic counterpulsation system and to address any potential issues that may arise during recovery.

Short Descr	INSJ/RPLCMT MECH-ELEC NTRFCE
Medium Descr	INSJ/RPLCMT IMPLTBL AORTIC VENTR MECHANO-ELEC
Long Descr	Insertion or replacement of a permanently implantable aortic counterpulsation ventricular assist system, endovascular approach, and programming of sensing and therapeutic parameters; mechano-electrical skin interface
Status Code	Carriers Price the Code
Global Days	YYY - Carrier Determines Whether Global Concept Applies
PC/TC Indicator (26, TC)	9 - Not Applicable
Multiple Procedures (51)	9 - Concept does not apply.
Bilateral Surgery (50)	9 - Concept does not apply.
Physician Supervisions	09 - Concept does not apply.
Assistant Surgeon (80, 82)	9 - Concept does not apply.
Co-Surgeons (62)	9 - Concept does not apply.
Team Surgery (66)	9 - Concept does not apply.
Diagnostic Imaging Family	99 - Concept Does Not Apply
APC Status Indicator	Hospital Part B services paid through a comprehensive APC
Berenson-Eggers TOS (BETOS)	P5E - Ambulatory procedures - other
MUE	Not applicable/unspecified.