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    OpenPayerBilling CodesSymptoms and signs involving the circulatory and respiratory systemsICD-10-CM r01-cardiac-murmurs-and-other-cardiac-sounds
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    ICD-10-CM Code For Cardiac Murmurs And Other Cardiac Sounds: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group R01 includes audible cardiac findings such as heart murmurs, clicks, and other abnormal cardiac sounds that may reflect valvular disorders, structural heart disease, or transient physiologic changes. These ICD-10-CM diagnosis codes are used to document clinical encounters where auscultatory abnormalities are noted, capturing aspects of symptom presence, potential severity, and need for further investigation. Accurate coding within the ICD-10-CM R01 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM R01: Cardiac Murmurs And Other Cardiac Sounds Overview

    This code group represents clinical findings of abnormal heart sounds, including murmurs, clicks, and other audible cardiac phenomena that may indicate valvular or structural heart disease. It targets the cardiovascular system and signals the need for further diagnostic evaluation. Accurate coding matters for complete clinical documentation and appropriate reimbursement because it captures symptomatic findings that affect care and claim processing.

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    When to Use

    Use a code from this group when a provider documents an abnormal heart sound on examination, such as a new or persistent murmur, without a definitive structural diagnosis recorded. Codes in this group are also used when cardiac sounds are the primary reason for encounter or when they influence diagnostic or management decisions.

    ICD-10-CM Codes

    3 rows

    ICD-10-CM CodeDescription
    R01.0Benign and innocent cardiac murmurs
    R01.1Cardiac murmur, unspecified
    R01.2Other cardiac sounds

    DRG Codes

    5 rows

    DRG CodeDescription
    306Cardiac Congenital and Valvular Disorders with MCC
    307Cardiac Congenital and Valvular Disorders without MCC
    314Other Circulatory System Diagnoses with MCC
    315Other Circulatory System Diagnoses with CC
    316Other Circulatory System Diagnoses without CC/MCC

    Typical Clinical Scenarios

    • A middle-aged patient presents to primary care reporting a recent onset of exertional shortness of breath and fatigue; on auscultation the clinician detects a new systolic murmur best heard at the left sternal border and documents the abnormal cardiac sound as an isolated finding pending further evaluation. The visit is for initial assessment and documentation of the murmur while arranging echocardiography to determine structural cause, so a code from this group is assigned for the recorded abnormal cardiac sound. Typical codes: R01.1, R01.2
    • An elderly patient in the emergency department arrives with acute chest pain and palpitations; physical exam reveals a new diastolic blowing murmur and an audible thrill suggesting valvular dysfunction that may be related to acute ischemia or endocarditis. Because the clinician documents the abnormal cardiac sound as a presenting sign requiring urgent workup, a code from this group is used to capture the recorded murmur during the acute presentation. Typical codes: R01.0, R01.2
    • A young adult with a history of healed rheumatic fever is seen in cardiology clinic for routine follow-up; they remain asymptomatic but auscultation continues to demonstrate a chronic grade II/VI systolic ejection murmur consistent with a known benign flow murmur. For the outpatient visit where the persistent murmur is documented as a chronic finding without new symptoms, a code from this group is assigned to record the ongoing abnormal cardiac sound. Typical codes: R01.1

    Related Codes

    R00-ABNORMALITIES-OF-HEART-BEAT

    ICD-10-CM Code For Abnormalities Of Heart Beat: Group Overview

    R03-ABNORMAL-BLOOD-PRESSURE-READING

    ICD-10-CM Code For Abnormal Blood-Pressure Reading Without Diagnosis: Group Overview

    R04-HEMORRHAGE-FROM-RESPIRATORY-PASSAGES

    ICD-10-CM Code For Hemorrhage From Respiratory Passages: Group Overview

    R05-COUGH

    ICD-10-CM Code For Cough: Group Overview

    R06-ABNORMALITIES-OF-BREATHING

    ICD-10-CM Code For Abnormalities Of Breathing: Group Overview

    R07-PAIN-IN-THROAT-AND-CHEST

    ICD-10-CM Code For Pain In Throat And Chest: Group Overview

    R09-OTHER-SYMPTOMS-AND-SIGNS

    ICD-10-CM Code For Other Symptoms And Signs Involving The Circulatory And Respiratory System: Group Overview

    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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