Summary & Overview
HCPCS G8738: Left Ventricular Ejection Fraction < 40%
HCPCS Level II code G8738 denotes documentation that a patient’s left ventricular ejection fraction (LVEF) is under 40% or that left ventricular systolic function is moderately or severely depressed. The code flags clinically significant systolic dysfunction that affects prognosis, management decisions, and quality reporting. Nationally, capture of reduced LVEF is important for care pathways in heart failure, medication optimization, device eligibility, and outcomes monitoring.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context for G8738, common settings where the code appears, and what typical documentation supports its use. The publication also summarizes payer coverage considerations and highlights benchmarks for coding frequency where available.
This report provides practical reference material: clinical description and typical sites of service, payer coverage scope, and related coding considerations. It is intended to inform billing, clinical documentation, and compliance teams about the role of G8738 in representing reduced left ventricular systolic function in administrative records.
Billing Code Overview
HCPCS Level II code G8738 indicates documentation that a patient has a left ventricular ejection fraction (LVEF) < 40% or documentation of severely or moderately depressed left ventricular systolic function. This code captures information about cardiac systolic dysfunction severity rather than a specific treatment or procedure.
-
Service type: Diagnostic/clinical documentation of cardiac systolic function severity
-
Typical site of service: Inpatient hospital, outpatient cardiology clinic, or other clinical settings where left ventricular function is assessed (for example, echo lab or hospital ward)
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with a history of ischemic cardiomyopathy and prior myocardial infarction presents to the cardiology clinic after worsening exertional dyspnea and lower-extremity edema. An echocardiogram is ordered and documents a left ventricular ejection fraction of 32%, consistent with moderately to severely reduced systolic function. The clinical workflow includes outpatient cardiology evaluation, transthoracic echocardiography with formal EF reporting, documentation in the medical record noting LV systolic dysfunction or LVEF < 40%, and subsequent care planning (medication optimization, device evaluation, or referral to heart failure clinic). The billing code G8738 is used to capture documentation that the patient’s LVEF is either less than 40% or that there is documentation of severely or moderately depressed left ventricular systolic function. Typical site of service is outpatient cardiology clinic or hospital outpatient imaging center. Typical patient scenario: adult patient with chronic heart failure or recent acute coronary syndrome undergoing echocardiographic assessment and clinician documentation of reduced LV systolic function to support heart failure management and quality reporting.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management (E/M) service by the same physician on the same day of the procedure | Use when an E/M visit is performed on the same day as a diagnostic test and the visit is distinct from the echocardiogram interpretation. |