CPT 00528: Anesthesia for Closed Chest Procedures, Mediastinoscopy/Thoracoscopy - OpenPayer

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Summary & Overview

CPT 00528: Anesthesia for Closed Chest Procedures, Mediastinoscopy/Thoracoscopy

CPT code 00528 covers anesthesia for closed chest procedures, including mediastinoscopy and diagnostic thoracoscopy without the use of one lung ventilation. This code is significant for hospitals and anesthesia providers nationwide, as it addresses a common set of diagnostic and surgical interventions in thoracic medicine. The typical site of service is the inpatient hospital, reflecting the complexity and clinical importance of these procedures.

Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, and UnitedHealthcare. The publication provides an overview of payer coverage, clinical context, and relevant billing considerations for CPT 00528. Readers will gain insight into national benchmarks, policy updates, and the role of anesthesia in intrathoracic procedures. The summary also highlights associated modifiers and taxonomies, as well as common ICD-10 diagnoses linked to these services. Related CPT codes are discussed to provide a comprehensive understanding of anesthesia billing for thoracic procedures.

This article is intended for healthcare administrators, billing professionals, and clinicians seeking up-to-date information on anesthesia coding and payer policies for closed chest procedures.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareCPT 00528anesthesiaintrathoracic proceduresclosed chest proceduresmediastinoscopydiagnostic thoracoscopyhospital inpatientmedical billingclinical codingpolicy updates

CPT Code Overview

CPT 00528 is designated for anesthesia services provided during closed chest procedures, specifically mediastinoscopy and diagnostic thoracoscopy that do not require one lung ventilation. This code falls under the Anesthesia – Intrathoracic Procedures service type. The typical site of service for these procedures is the inpatient hospital setting (POS 21). These procedures are critical for diagnosing and managing thoracic conditions, and the anesthesia component ensures patient safety and comfort during complex intrathoracic interventions.

Clinical & Coding Specifications

Clinical Context

A patient is admitted to an inpatient hospital for evaluation of suspected mediastinal or thoracic pathology, such as a mass or lymphadenopathy. The patient has a history of cardiovascular disease, which may include atherosclerotic heart disease, angina, or heart failure. The procedure performed is a closed chest mediastinoscopy or diagnostic thoracoscopy, not requiring one lung ventilation. An anesthesia provider, such as an anesthesiologist or cardiac anesthesiologist, administers anesthesia to ensure patient comfort and safety during the intrathoracic procedure. The clinical workflow involves preoperative assessment, induction and maintenance of anesthesia, intraoperative monitoring, and postoperative care.

Coding Specifications

Modifiers:
- QS: Monitored anesthesia care service. Used when the anesthesia provider is delivering monitored anesthesia care rather than general anesthesia.
- QX: CRNA service with medical direction by a physician. Used when a Certified Registered Nurse Anesthetist (CRNA) is providing the anesthesia service under the medical direction of a physician.
Provider Taxonomies:

Taxonomy Code Specialty Name

National Reimbursement Benchmarks

For CPT code 00528, national mean rates among commercial payers are notably higher than the average commercial benchmark (BUCA), with Blue Cross Blue Shield and Cigna both exceeding $450.00. The BUCA mean rate stands at $205.66, while UnitedHealth Group is significantly lower at $65.59. Medicare data is not available in the input.

Rate dispersion varies considerably across payers. UnitedHealth Group shows the tightest range between the 25th and 75th percentiles ($25.51), indicating less variability in contracted rates. In contrast, Cigna exhibits the widest spread ($603.50), reflecting substantial rate variation. Blue Cross Blue Shield and Aetna also display broad ranges, suggesting diverse reimbursement levels across providers.

The table and chart below present a detailed breakdown of national benchmarks for each payer, including mean rates and percentile values.

State Benchmarks

State: AK1 / 50

Alaska Benchmarks

Alaska exhibits a wide spread in reimbursement rates for CPT code 00528, with Blue Cross Blue Shield showing the largest range between the 25th and 75th percentiles ($173.40), while Aetna, Cigna, and UnitedHealth Group display minimal rate variation. The mean rates for Blue Cross Blue Shield and BUCA in Alaska are significantly higher than their respective national averages, whereas Cigna and UnitedHealth Group are below national benchmarks.

The table and chart below present the full breakdown of mean rates and percentile values by payer for Alaska, highlighting the substantial differences in reimbursement across payers.

Key Insights for Alaska

Blue Cross Blue Shield is the highest paying payer for CPT 00528 in Alaska, with a mean rate of $513.87.
UnitedHealth Group offers the lowest mean rate at $75.12.
Alaska's mean rates for most payers, especially Blue Cross Blue Shield and BUCA, are notably higher than national averages, while Cigna and UnitedHealth Group are below national benchmarks.

Related Codes

00410

CPT 00410: Anesthesia for Procedure to Correct Abnormal Heart Rhythm

00450

CPT 00450: Anesthesia for Clavicle and Scapula Procedures

00454

CPT 00454: Anesthesia for Clavicle and Scapula Procedures

00630

CPT 00630: Anesthesia for Lumbar Procedures, Not Otherwise Specified

00537

CPT 00537: Anesthesia for Cardiac Electrophysiologic Procedures

00635

CPT 00635: Anesthesia for Lumbar Puncture Procedures

00472

CPT 00472: Anesthesia for Partial Rib Resection

00604

CPT 00604: Anesthesia for Cervical Spine Procedures in Sitting Position

00534

CPT 00534: Anesthesia for Transvenous Cardioverter–Defibrillator Insertion

00542

CPT 00542: Anesthesia for Removal of Lung Lining

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