2025 ICD-10-CM code I42.2
(Active) Effective Date: N/A Diseases of the circulatory system - Other forms of heart disease (I30-I5A) I00-I99 Feed
Other hypertrophic cardiomyopathy. This includes nonobstructive hypertrophic cardiomyopathy.
Medical necessity for services related to I42.2 should be supported by documentation of symptoms, diagnostic test results, and treatment plans aimed at managing the condition and preventing complications.
Clinicians responsible for diagnosing and managing I42.2 include cardiologists, internists, and family physicians. Their responsibilities involve obtaining a thorough medical history, performing physical examinations (auscultation for heart murmurs), ordering diagnostic tests (such as echocardiograms, electrocardiograms, and cardiac MRIs), and developing treatment plans that may include medications, lifestyle modifications, or surgical interventions.
In simple words: This refers to a type of heart muscle thickening where the heart walls get thicker, making it harder for the heart to function properly. It is different from another type of the same condition where the thickened heart muscle blocks blood flow.
Other hypertrophic cardiomyopathy is a condition characterized by the thickening of the heart muscle, specifically affecting areas other than the interventricular septum, which distinguishes it from obstructive hypertrophic cardiomyopathy.It is a form of hypertrophic cardiomyopathy (HCM) where the heart's ability to relax and fill with blood might be compromised, but the outflow of blood from the heart is not obstructed.
Example 1: A 45-year-old patient presents with shortness of breath during exercise and occasional chest pain. An echocardiogram reveals thickening of the left ventricular wall, but no obstruction to the outflow of blood. The diagnosis is nonobstructive hypertrophic cardiomyopathy, coded as I42.2., A 25-year-old athlete experiences palpitations and dizziness during intense training.Diagnostic tests identify thickening in the heart muscle, excluding the septal region. The patient is diagnosed with other hypertrophic cardiomyopathy, I42.2., A routine check-up of a 60-year-old reveals thickened heart muscle in the left ventricle on an echocardiogram. The patient reports no symptoms and there is no outflow obstruction.The finding is documented as I42.2, other hypertrophic cardiomyopathy.
Documentation for I42.2 should include echocardiogram or cardiac MRI findings showing thickened heart muscle in areas other than the interventricular septum.Clinical symptoms, family history of HCM, and electrocardiogram results should also be documented.
** Distinguishing I42.2 from other forms of cardiomyopathy and specifying the nonobstructive nature of the hypertrophy are essential for accurate coding.Always prioritize clear and complete documentation to support code selection.
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- Specialties:Cardiology, Internal Medicine, Family Medicine
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