Summary & Overview
CPT 93350: Stress Echocardiography, Transthoracic with Interpretation
CPT code 93350 is a widely utilized billing code for stress echocardiography, a diagnostic procedure that evaluates cardiac function under physical or pharmacological stress. This code is essential in cardiology for identifying and monitoring heart disease, including conditions such as valve disorders, heart failure, and myocardial infarction. The procedure is typically performed in office settings or diagnostic testing facilities, making it accessible for outpatient care.
Major national payers covering this service include Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare. Understanding coverage policies and billing requirements for these payers is crucial for providers and healthcare organizations to ensure accurate reimbursement and compliance.
This publication provides a comprehensive overview of CPT code 93350, including clinical context, payer coverage, and related coding information. Readers will gain insights into benchmarks, policy updates, and the role of stress echocardiography in cardiovascular care. The summary also highlights associated modifiers, relevant ICD-10 diagnoses, and related CPT codes, offering a clear reference for billing and clinical documentation. The information is designed to support healthcare professionals, administrators, and policy analysts in navigating the complexities of cardiovascular billing and coding.
CPT Code Overview
CPT code 93350 represents a cardiovascular procedure known as stress echocardiography. This service involves a transthoracic echocardiogram performed in real-time with image documentation (2D), including M-mode recording when indicated. The procedure is conducted during rest and a cardiovascular stress test, which may utilize treadmill, bicycle exercise, or pharmacologically induced stress. The test is interpreted and reported by a physician. Typical sites of service for this procedure include the office (POS 11) and diagnostic testing facilities. Stress echocardiography is a key diagnostic tool in cardiology, used to assess cardiac function and detect abnormalities under stress conditions.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves an adult presenting to a cardiology office or diagnostic testing facility with symptoms such as chest pain, shortness of breath, or suspected heart failure. The patient may have a history of rheumatic heart disease, myocardial infarction, or left ventricular dysfunction. The cardiologist orders a stress echocardiography procedure (93350) to assess cardiac function and detect ischemia or valvular abnormalities. The test is performed using treadmill or bicycle exercise, or pharmacological stress if the patient cannot exercise. Real-time transthoracic echocardiography images are obtained during rest and stress, and the interpreting physician provides a report.
Coding Specifications
-
Modifiers:
26: Professional Component – Used when only the physician's interpretation and report are billed.TC: Technical Component – Used when only the technical portion (equipment, technician, etc.) is billed.52: Reduced Services – Used when the procedure is partially performed or not completed as intended.59: Distinct Procedural Service – Used to indicate a procedure or service was distinct or independent from other services performed on the same day.
-
Provider Taxonomies:
Taxonomy Code Specialty Name 207RC0000XCardiovascular Disease (Cardiology)
This taxonomy represents providers specializing in cardiology, who are typically responsible for performing and interpreting stress echocardiography procedures.
Related Diagnoses
-
I05.1: Rheumatic mitral insufficiency- Indicates mitral valve regurgitation due to rheumatic disease; stress echocardiography helps assess severity and functional impact.
-
I05.8: Other rheumatic mitral valve diseases- Covers other mitral valve pathologies from rheumatic origin; echocardiography evaluates valve function under stress.
-
I06.0: Rheumatic aortic stenosis- Aortic valve narrowing from rheumatic disease; stress echo assesses hemodynamic significance.
-
I06.1: Rheumatic aortic insufficiency- Aortic valve regurgitation due to rheumatic disease; procedure evaluates impact on cardiac function.
-
I06.2: Rheumatic aortic stenosis with insufficiency- Combination of stenosis and regurgitation; stress echo provides functional assessment.
-
I08.0: Rheumatic disorders of both mitral and aortic valves- Multiple valve involvement; stress echo evaluates overall cardiac performance.
-
I08.2: Rheumatic disorders of both tricuspid and aortic valves- Multiple valve disease; procedure assesses combined effects on heart function.
-
I08.8: Other multiple valve diseases- Non-specific multiple valve pathologies; stress echo helps determine clinical significance.
-
I21.9: Acute myocardial infarction, unspecified- Recent heart attack; stress echo evaluates residual ischemia or wall motion abnormalities.
-
I21.A1: Acute transmural myocardial infarction of anterior wall- Specific location of heart attack; procedure assesses regional wall motion and viability.
-
I21.A9: Acute transmural myocardial infarction of other sites- Other locations of heart attack; stress echo evaluates functional impact.
-
I50.810: Left ventricular failure, unspecified- Heart failure affecting left ventricle; stress echo assesses contractility and response to stress.
-
I50.811: Left ventricular failure with acute onset- Sudden onset heart failure; procedure evaluates severity and underlying cause.
-
I50.812: Left ventricular failure with chronic onset- Chronic heart failure; stress echo monitors progression and response to therapy.
-
I50.813: Left ventricular failure, acute on chronic- Acute worsening of chronic heart failure; procedure assesses current function.
-
I50.814: Left ventricular failure, unspecified, acute on chronic- Unspecified acute on chronic failure; stress echo evaluates impact.
-
I50.82: Biventricular heart failure- Failure of both ventricles; stress echo assesses overall cardiac performance.
-
I50.89: Other heart failure- Other types of heart failure; procedure helps determine etiology and severity.
-
R06.03: Acute respiratory distress- Acute breathing difficulty; stress echo may be used to rule out cardiac causes.
Related CPT Codes
-
93015: Cardiovascular stress test using maximal or submaximal treadmill or bicycle exercise, continuous electrocardiographic monitoring, and/or pharmacological stress; with supervision, interpretation and report.- Used to assess cardiac response to stress; often performed in conjunction with
93350to monitor ECG during the stress portion.
- Used to assess cardiac response to stress; often performed in conjunction with
-
93351: Echocardiography, transthoracic, real‑time with image documentation (2D), includes M‑mode recording, when performed, during rest and cardiovascular stress test using treadmill, bicycle exercise and/or pharmacologically induced stress, with interpretation and report; including performance of continuous electrocardiographic monitoring, with physician supervision.- Similar to
93350, but includes continuous ECG monitoring and physician supervision; may be used as an alternative or in combination depending on workflow and supervision requirements.
- Similar to
-
93352: Use of echocardiographic contrast agent during stress echocardiography (List separately in addition to code for primary procedure).- Used as an add-on code when a contrast agent is administered during the stress echocardiography to enhance image quality; billed in addition to
93350when applicable.
- Used as an add-on code when a contrast agent is administered during the stress echocardiography to enhance image quality; billed in addition to
National Reimbursement Benchmarks
Nationally, the mean rate for CPT code 93350 is highest among commercial payers, with Cigna and UnitedHealth Group both exceeding $215.00, while Blue Cross Blue Shield and BUCA average around $180.00. In contrast, Medicare's mean rate is significantly lower at $128.58, reflecting a substantial gap between government and commercial reimbursement levels.
Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies across payers. Medicare exhibits the widest spread ($108.50), indicating greater variability in rates, while Aetna has the tightest range ($48.64), suggesting more consistent reimbursement. Cigna and UnitedHealth Group also show wide dispersions, with differences of $110.06 and $107.17, respectively.
The table and chart below present a detailed breakdown of national mean rates and percentile values 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.