Summary & Overview
CPT 93308: Limited Transthoracic Echocardiography, 2D Focused Study
CPT code 93308 denotes a limited or follow-up transthoracic echocardiography that acquires two-dimensional images through the chest wall for a focused clinical question. As a targeted, time- and scope-limited ultrasound exam, it is commonly used to reassess specific findings (for example, pericardial effusion, ventricular function, or valve motion) without performing a full comprehensive echocardiogram. The procedure includes both professional and technical components, making it relevant for billing splits between interpreting clinicians and facilities.
Key payers in the national analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find concise benchmarks for typical site-of-service delivery, guidance on payer coverage patterns where available, and clinical context distinguishing limited transthoracic studies from complete echocardiograms. The publication also summarizes common modifier usage and service-line implications for imaging departments and cardiology practices.
This national overview is intended to clarify what CPT code 93308 represents, how it is used in clinical workflows, and the policy and billing considerations that affect reimbursement and documentation across major payers. Data not available in the input are noted where applicable.
Billing Code Overview
CPT code 93308 describes a limited or follow-up transthoracic echocardiography (2D) performed through the chest wall to obtain two-dimensional images of the heart. This is a focused, limited echocardiographic examination directed at a specific clinical concern and does not attempt to evaluate or document all cardiac structures included in a complete echocardiogram. The service includes both a professional component and a technical component.
Service type: Limited or follow-up transthoracic echocardiography (2D), focused study
Typical site of service: Hospital outpatient departments, freestanding imaging centers, ambulatory surgical centers, and physician offices with echocardiography capability
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with a history of ischemic heart disease presents to the outpatient cardiology clinic with new-onset exertional dyspnea and a recent abnormal portable cardiac monitor showing premature ventricular contractions. The cardiologist orders a limited transthoracic echocardiogram to address a focused clinical concern: evaluate left ventricular function and exclude a pericardial effusion or significant regional wall motion abnormality. The patient arrives at the hospital-based outpatient imaging center. A sonographer performs the technical component, acquiring focused 2D images through the chest wall aimed at the clinical question. The interpreting cardiologist reviews images, documents findings limited to the scope ordered (e.g., assessment of global left ventricular systolic function, presence/absence of pericardial effusion, and gross valvular abnormalities), and provides a follow-up plan. Billing reflects that the service is a limited or follow-up transthoracic echocardiography with both professional and technical components, consistent with 93308.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician interpretation/reporting portion of 93308. |