Summary & Overview
CPT 93458: Coronary Angiography with Left Heart Catheterization
CPT code 93458 is a key billing code in interventional cardiology, covering imaging supervision and interpretation for coronary angiography with left heart catheterization, including injections for left ventriculography. This procedure is essential for diagnosing and managing coronary artery disease, offering detailed insights into cardiac anatomy and function. Nationally, it is widely utilized in hospital outpatient settings, reflecting its importance in cardiovascular care.
Major payers such as Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare provide coverage for this service, underscoring its clinical and financial relevance across the healthcare landscape. Readers will gain an understanding of payer coverage, typical clinical indications, and related procedural codes, as well as current policy updates and benchmarks for this high-value cardiovascular service. The publication also highlights common modifiers used in billing, associated provider taxonomies, and relevant ICD-10 diagnoses, equipping stakeholders with a comprehensive overview of the procedural, clinical, and reimbursement context for CPT code 93458.
CPT Code Overview
CPT code 93458 represents imaging supervision and interpretation for coronary angiography with left heart catheterization, including intraprocedural injections for left ventriculography. This procedure is a cornerstone of interventional cardiology, providing critical diagnostic information about coronary artery disease and cardiac function. The typical site of service for this procedure is the hospital outpatient setting (Place of Service 22), where advanced imaging and catheterization resources are available to support patient care.
Clinical & Coding Specifications
Clinical Context
A 65-year-old patient with a history of chest pain and risk factors for coronary artery disease presents to the hospital outpatient department. The cardiologist suspects atherosclerotic heart disease with unstable angina. The patient undergoes coronary angiography with left heart catheterization, including intraprocedural injections for left ventriculography, to assess coronary anatomy and left ventricular function. Imaging supervision and interpretation are performed during the procedure to guide clinical decision-making.
Coding Specifications
-
Modifiers:
- Modifier
26: Used to report the professional component (interpretation and supervision) of the procedure. - Modifier
TC: Used to report the technical component (equipment, supplies, and technical staff) of the procedure. - Modifier
59: Indicates a distinct procedural service, used when multiple procedures are performed that are not normally reported together. - Modifier
51: Used to indicate multiple procedures performed during the same session.
- Modifier
-
Provider Taxonomies:
| Taxonomy Code | Specialty Name |
|---|---|
207RC0000X | Cardiovascular Disease Physician |
207RI0011X | Interventional Cardiology Physician |
207R00000X | Internal Medicine Physician |
Related Diagnoses
I25.110: Atherosclerotic heart disease of native coronary artery with unstable angina pectoris- This diagnosis is clinically relevant as it represents a common indication for coronary angiography with left heart catheterization. The procedure helps to evaluate the extent of coronary artery disease and guide management for patients presenting with unstable angina.
Related CPT Codes
-
93510: Left heart catheterization- Used to access the left side of the heart for diagnostic purposes. Often performed as part of the workflow for coronary angiography.
-
93545: Injection procedure during cardiac catheterization; for selective coronary angiography- Used for selective injection of contrast into coronary arteries during catheterization. Commonly performed together with
93458.
- Used for selective injection of contrast into coronary arteries during catheterization. Commonly performed together with
-
93567: Injection procedure during cardiac catheterization; for supravalvular aortography- Used for injection of contrast above the aortic valve to assess aortic anatomy. May be performed in conjunction with
93458if clinically indicated.
- Used for injection of contrast above the aortic valve to assess aortic anatomy. May be performed in conjunction with
-
92928: Percutaneous transcatheter placement of intracoronary stent(s), with coronary angioplasty when performed; single major coronary artery or branch- Represents an interventional procedure that may follow diagnostic angiography if a significant lesion is found. Used as an alternative or additional code when stenting is performed after
93458.
- Represents an interventional procedure that may follow diagnostic angiography if a significant lesion is found. Used as an alternative or additional code when stenting is performed after
National Reimbursement Benchmarks
Nationally, the mean rate for CPT code 93458 is highest among UnitedHealth Group and Cigna, both exceeding $1,200, while Medicare's mean rate is notably lower at $698.68. The average commercial benchmark (BUCA) stands at $977.51, which is $278.83 higher than the Medicare mean rate.
Rate dispersion varies significantly across payers. Medicare shows the widest spread, with a difference of $678.50 between its 75th and 25th percentiles, indicating substantial variability in reimbursement. In contrast, Aetna has the tightest range at $243.97, suggesting more consistent rates across providers. Cigna and UnitedHealth Group also exhibit wide dispersions, each with ranges over $580.
The table and chart below present a detailed breakdown of national mean rates and percentile distributions for each payer.
Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.