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CPT 00563: Anesthesia for Cardiac Surgery with Bypass and Circulatory Arrest
Headline: CPT code 00563 defines high-acuity anesthesia for cardiac procedures with cardiopulmonary bypass and hypothermic circulatory arrest
Lead: CPT code 00563 covers anesthesia services for major open-heart surgeries involving the heart, pericardium, and great vessels where a pump oxygenator takes over cardiac and pulmonary function and hypothermic circulatory arrest is used. This designation reflects one of the most resource-intensive anesthesia services and carries implications for clinical preparation, intraoperative monitoring, and payer policy.
What the code represents and why it matters: CPT code 00563 identifies anesthesia care for operations that require cardiopulmonary bypass and deliberate cooling with temporary cessation of circulation. Nationally, this code signals high procedural complexity, extended anesthesia time, advanced monitoring and staffing needs, and significant perioperative risk—factors that affect hospital resource utilization and payer coverage discussions.
Key payers covered: Analysis includes major national commercial payers and public coverage models: Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare.
What readers will learn: The publication provides clinical context for use of CPT code 00563, comparisons to related cardiac anesthesia codes, common billing modifiers and practice taxonomies (listed separately), and guidance on typical sites of service. Benchmark and policy summaries summarize how payers commonly classify and adjudicate this high-acuity anesthesia service and highlight documentation elements that support correct code assignment.
Scope: This is a national overview intended for clinicians, coding professionals, and reimbursement analysts seeking concise information on code definition, clinical context, and payer coverage landscape.
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Billing Code Overview
CPT code 00563 describes anesthesia services for procedures on the heart, pericardium, and great vessels that require cardiopulmonary bypass and hypothermic circulatory arrest. The service involves management of anesthesia for complex open cardiac surgery in which a pump oxygenator assumes heart and lung function and the patient is cooled to permit temporary cessation of circulation.
Service type: Cardiac anesthesia for open heart surgery with cardiopulmonary bypass and hypothermic circulatory arrest
Typical site of service: Inpatient hospital operating room (cardiac surgery suite), often within a tertiary care or academic medical center
National Reimbursement Benchmarks
Commercial national averages for CPT 00563 center around BUCA’s mean of $72.40, with individual payer means ranging from Blue Cross Blue Shield’s $61.50 to Cigna’s $91.80 and Aetna’s $90.30; UnitedHealth Group’s mean is $67.30. Payer medians trend near their means for some carriers (Blue Cross Blue Shield median $57, UnitedHealth Group median $64), while Cigna and Aetna show higher medians at $85.70 and $61.70 respectively, reflecting different skew in their distributions.
Dispersion measured as P75 minus P25 is tightest for Blue Cross Blue Shield at $41.10 and for UnitedHealth Group at $27.60, indicating more concentrated commercial rates. Dispersion is widest for Aetna at $67.50 and Cigna at $52.0, with BUCA’s interquartile spread of $45.30 placing it between these extremes. These ranges highlight where commercial pricing is most variable across the major payers.