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    v1.0.30
    OpenPayerBilling CodesDiagnostic/Screening Processes or ResultsCPT cpt-3021f-lvef-less-than-40-percent-moderate-severe-lvs-dysfunction
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    CPT 3021F: Left Ventricular Systolic Dysfunction (LVEF < 40%)

    CPT code 3021F indicates a documented left ventricular systolic dysfunction where the patient’s left ventricular ejection fraction (LVEF) is less than 40% or the left ventricular systolic function is described as moderately or severely depressed; this code is reported as a clinical measure of cardiac systolic impairment and typically accompanies cardiology evaluation and management services, often provided in inpatient hospital, cardiology clinic, or echocardiography imaging settings.

    For related coverage guidance, see recent payer policy updates: General Inflammation Testing, Urine Culture Testing for Bacteria, Biomarkers for Myocardial Infarction and Chronic Heart Failure.

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    Clinical & Coding Specifications

    Clinical Context

    A 68-year-old man with ischemic cardiomyopathy and progressive exertional dyspnea is evaluated in the outpatient cardiology clinic after hospitalization for acute decompensated heart failure. Transthoracic echocardiography documents a left ventricular ejection fraction of 32% with moderately to severely reduced left ventricular systolic function. The cardiologist documents heart failure with reduced ejection fraction (HFrEF) and records 3021F on the visit claim to indicate LVEF < 40% / moderate–severe LV systolic dysfunction. The clinical workflow includes: referral from primary care, review of prior imaging and status, focused history and medication reconciliation, ordering or repeating transthoracic echo if prior study is >3 months old, optimization of guideline-directed medical therapy, consideration of device therapy (ICD/CRT) referral, and scheduling follow-up to monitor response to therapy and LVEF recovery. Typical sites of service are outpatient cardiology clinic or hospital cardiology inpatient encounters where assessment of systolic function is performed and documented.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    93306Echocardiography, transthoracic, real-time with image documentation (2D), includes M-mode recording, when performed; completePrimary imaging study used to measure LVEF and assess LV systolic function; typically performed before documenting 3021F
    93312Echocardiography, transesophageal, real-time with image documentation, including probe placement, transcription, and interpretation for comprehensive studyPerformed when transthoracic images are inadequate or additional detail is needed; informs LVEF and systolic function assessment
    93288External ambulatory cardiac telemetry with recording and storageUsed for rhythm assessment in patients being evaluated prior to device implantation or to correlate arrhythmia burden with low LVEF
    33249Insertion of new or replacement of permanent pacemaker or implantable cardioverter-defibrillator, single or dual lead, with transvenous lead(s)Device therapy considered for patients with LVEF < 35% or symptomatic systolic dysfunction; relates to downstream management after 3021F documentation
    93798Evaluation of hemodynamics during cardiac catheterization, when performed separatelyHemodynamic assessment during invasive evaluation can complement LVEF assessment in advanced heart failure workups

    Related Modifiers

    5 rows

    ModifierDescriptionWhen to Use
    25CPT modifier 25 indicates that on the same day as another procedure or service, the same physician or other qualified health care professional provided a significant, separately identifiable…- When to apply: Use modifier 25 only on an E/M code to indicate the same provider delivered a significant, separately identifiable E/M service on the same day as another procedure or service — i.e.,…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    24Modifier 24 denotes an unrelated evaluation and management (E/M) service performed by the same physician or qualified healthcare professional during a postoperative global period. Per CPT guidance,…- Use modifier 24 when you report an evaluation and management (E/M) service performed by the same physician or same-specialty group during a procedure’s postoperative global period that is unrelated…
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    56Modifier ‑56 indicates the reporting provider furnished only the preoperative management for a surgical procedure and did not perform the intraoperative or postoperative care. It is used in…- Use Modifier -56 when a provider performs only the preoperative management in a split‑care situation (one physician manages preop care while a different physician performs the intraoperative…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207RC0000X
    207RH0000X
    207RP1001X
    207RR0500X
    207V00000X
    207SG0205X
    171WH0202X
    207WX0109X

    Related Payer Policy Updates

    Specialty: Laboratory/Pathology1 / 3

    10 rows

    PolicyPayerEffective Date
    General Inflammation TestingOscar Health2027-01-01
    Urine Culture Testing for BacteriaOscar Health2027-01-01
    Biomarkers for Myocardial Infarction and Chronic Heart FailureOscar Health2027-01-01
    Policy Regarding Outpatient Definitive Drug TestingMolina Healthcare2027-01-01
    Serum Testing for Evidence of Mild Traumatic Brain InjuryHealthfirst2026-11-01
    Respiratory Viral PanelsProvidence Health Plan2026-10-01
    Serum Iron StudiesProvidence Health Plan2026-10-01
    Prothrombin Time (PT)Providence Health Plan2026-10-01
    Partial Thromboplastin Time (PTT)Providence Health Plan2026-10-01
    Respiratory Viral PanelsProvidence Health Plan2026-10-01

    Related Codes

    CPT-3006F-CLINICAL-QUALITY-MEASURE

    CPT 3006F: Respiratory Assessment or Therapy Note

    CPT-3008F-NO-SUMMARY-AVAILABLE

    CPT 3008F: No Summary available

    CPT-3011F-CLINICAL-REPORTING-ELEMENT

    CPT 3011F: Clinical Quality Measure Documentation

    CPT-3014F-SCREENING-MAMMOGRAPHY-ASYMPTOMATIC-WOMEN-40-PLUS

    CPT 3014F: Screening Mammography for Asymptomatic Women 40+

    CPT-3015F-PERFORMANCE-MEASURE

    CPT 3015F: Airway Management/Intubation Assessment

    CPT-3016F-ALCOHOL-USE-SCREENING-ANNUAL

    CPT 3016F: Alcohol Screening for Unhealthy Use in Adults

    CPT-3017F-COLORECTAL-CANCER-SCREENING

    CPT 3017F: Colorectal Cancer Screening

    CPT-3018F-SPECIFIC-CLINICAL-REPORTING-ITEM

    CPT 3018F: Oxygen Therapy Assessment or Documentation

    CPT-3019F-UNSPECIFIED-SERVICE

    CPT 3019F: No Summary Found

    CPT-3020F-NO-SUMMARY-AVAILABLE

    CPT 3020F: Clinical Quality Performance Measure

    Showing 1–10 of 199

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    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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