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    v1.0.28
    OpenPayerBilling CodesOther forms of heart diseaseICD-10-CM i50-heart-failure
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    ICD-10-CM Code For Heart Failure: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group I50 includes diagnoses for heart failure syndromes characterized by impaired cardiac pumping function, such as congestive heart failure, systolic and diastolic dysfunction, and acute decompensated presentations. These ICD-10-CM diagnosis codes are used to document clinical scenarios that capture disease severity, left ventricular function patterns, and acute versus chronic status relevant to heart failure management. Accurate coding within the ICD-10-CM I50 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM I50: Heart Failure Overview

    The ICD-10-CM I50 heart failure group encompasses diagnoses describing impaired cardiac pumping function and its clinical consequences for the circulatory and pulmonary systems. These codes target conditions affecting the myocardium’s ability to maintain adequate cardiac output, including reduced and preserved ejection fraction presentations and acute or chronic decompensation. Accurate coding matters for complete clinical documentation and appropriate billing because it captures disease severity and guides resource allocation.

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    When to Use

    Use a code from this group when a clinician documents heart failure, specifying acute or chronic status and systolic or diastolic dysfunction when known. Use these codes to report heart failure as a primary diagnosis or as a contributing condition affecting patient management and resource utilization.

    ICD-10-CM Codes

    23 rows

    ICD-10-CM CodeDescription
    I50.1Left ventricular failure, unspecified
    I50.20Unspecified systolic (congestive) heart failure
    I50.21Acute systolic (congestive) heart failure
    I50.22Chronic systolic (congestive) heart failure
    I50.23Acute on chronic systolic (congestive) heart failure
    I50.30Unspecified diastolic (congestive) heart failure
    I50.31Acute diastolic (congestive) heart failure
    I50.32Chronic diastolic (congestive) heart failure
    I50.33Acute on chronic diastolic (congestive) heart failure
    I50.40Unspecified combined systolic (congestive) and diastolic (congestive) heart failure
    I50.41Acute combined systolic (congestive) and diastolic (congestive) heart failure
    I50.42Chronic combined systolic (congestive) and diastolic (congestive) heart failure
    I50.43Acute on chronic combined systolic (congestive) and diastolic (congestive) heart failure
    I50.810Right heart failure, unspecified
    I50.811Acute right heart failure
    I50.812Chronic right heart failure
    I50.813Acute on chronic right heart failure
    I50.814Right heart failure due to left heart failure
    I50.82Biventricular heart failure
    I50.83High output heart failure

    Showing 1–20 of 23

    DRG Codes

    5 rows

    DRG CodeDescription
    291Heart Failure and Shock with MCC
    292Heart Failure and Shock with CC
    293Heart Failure and Shock without CC/MCC
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems

    Typical Clinical Scenarios

    • An older patient with known ischemic cardiomyopathy presents to the emergency department with worsening shortness of breath over 48 hours, orthopnea, bibasilar crackles on exam, and lower extremity edema. Elevated BNP and chest X‑ray showing pulmonary congestion support acute decompensation of chronic heart failure; a code from this group is assigned to capture systolic dysfunction presenting acutely. Typical codes: I50.21, I50.22
    • A middle‑aged patient in outpatient cardiology follow‑up with long‑standing nonischemic dilated cardiomyopathy reports stable exercise tolerance on guideline‑directed medical therapy without recent exacerbations; the visit documents chronic heart failure with reduced ejection fraction as a persistent condition requiring ongoing management. A chronic heart failure code from this group is assigned to reflect the patient’s baseline ventricular dysfunction and outpatient maintenance care. Typical codes: I50.22, I50.20
    • A hospitalized patient admitted for acute myocardial infarction develops new pulmonary edema and requires intravenous diuretics and monitoring; heart failure is recorded as a complication of the acute coronary event, necessitating documentation of acute heart failure status and its relation to the precipitating cardiac ischemia. Typical codes: I50.23, I50.21

    Related Codes

    I30-ACUTE-PERICARDITIS

    ICD-10-CM Code For Acute Pericarditis: Group Overview

    I31-OTHER-DISEASES-OF-PERICARDIUM

    ICD-10-CM Code For Other Diseases Of Pericardium: Group Overview

    I32-PERICARDITIS-IN-DISEASES-CLASSIFIED-ELSEWHERE

    ICD-10-CM Code For Pericarditis In Diseases Classified Elsewhere: Group Overview

    I33-ACUTE-AND-SUBACUTE-ENDOCARDITIS

    ICD-10-CM Code For Acute And Subacute Endocarditis: Group Overview

    I34-NONRHEUMATIC-MITRAL-VALVE-DISORDERS

    ICD-10-CM Code For Nonrheumatic Mitral Valve Disorders: Group Overview

    I35-NONRHEUMATIC-AORTIC-VALVE-DISORDERS

    ICD-10-CM Code For Nonrheumatic Aortic Valve Disorders: Group Overview

    I36-NONRHEUMATIC-TRICUSPID-VALVE-DISORDERS

    ICD-10-CM Code For Nonrheumatic Tricuspid Valve Disorders: Group Overview

    I37-NONRHEUMATIC-PULMONARY-VALVE-DISORDERS

    ICD-10-CM Code For Nonrheumatic Pulmonary Valve Disorders: Group Overview

    I38-ENDOCARDITIS-VALVE-UNSPECIFIED

    ICD-10-CM Code For Endocarditis Valve Unspecified: Group Overview

    I39-ENDOCARDITIS-AND-HEART-VALVE-DISORDERS

    ICD-10-CM Code For Endocarditis And Heart Valve Disorders In Diseases Classified Elsewhere: Group Overview

    Showing 1–10 of 23

    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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