Summary & Overview
CPT 33530: Repeat Coronary Bypass or Valve Reintervention
CPT code 33530 denotes a repeat coronary artery bypass grafting (CABG) or valve procedure performed more than one month after an initial operation when the primary reason is failure of the original surgery. This code captures high-acuity, resource-intensive cardiac reinterventions that have implications for hospital quality metrics, postoperative surveillance, and payment policy given their complexity and inpatient resource needs. Key national payers commonly covering such procedures include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will find a concise briefing on clinical context and typical sites of care for these repeat cardiac operations, an outline of common payer coverage patterns and modifier usage where available, and pointers to benchmarking and policy considerations relevant to high-cost, high-risk reoperative cardiac care. The report highlights where input data is available and notes when specific elements are not supplied. Intended audiences include hospital administrators, coding professionals, and policy analysts focused on cardiac surgical services and reimbursement for reoperative procedures.
Billing Code Overview
CPT code 33530 describes a repeat coronary artery bypass grafting or valve procedure performed more than one month after the original surgery when the repeat operation is primarily for failure of the original procedure. This represents a major cardiac surgical reintervention.
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Service type: Surgical reintervention for prior coronary artery bypass graft or valve surgery
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Typical site of service: Inpatient acute care hospital operating room and associated perioperative inpatient setting
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with a prior coronary artery bypass graft (CABG) performed 3 months ago presents with recurrent angina and objective evidence of ischemia on stress testing. Coronary angiography demonstrates failure of the original graft with occlusion of a saphenous vein graft and ischemia in the corresponding myocardial territory. The cardiac surgery team evaluates the patient and schedules a repeat revascularization procedure more than one month after the index operation. The clinical workflow includes preoperative cardiology and anesthesia evaluation, review of prior operative notes and graft anatomy, informed consent focused on increased risk due to reoperation, intraoperative identification and mobilization of adhesions, performance of a repeat CABG or valve reoperation as indicated, intraoperative transesophageal echocardiography as needed, and postoperative ICU monitoring with management of hemodynamics, graft patency surveillance, and wound care. Documentation must clearly state that the repeat procedure is being performed greater than one month after the original surgery and that the primary reason is failure of the original graft or valve procedure, supporting use of 33530.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural service | Use when work required is substantially greater than typical for a repeat CABG/valve procedure due to extensive adhesiolysis or unexpected complexity. |