AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2026 Quarter 4; New/Revised ICD-10-CM Codes
Dilated Cardiomyopathy
Codes I42.0 , Dilated cardiomyopathy, and I42.8 , Other cardiomyopathies, have been expanded, and new codes have been created to identify distinct types of cardiomyopathies as follows: I42.00 Dilated cardiomyopathy, unspecified I42.01 Familial-genetic dilated cardiomyopathy I42.09 Other dilated cardiomyopathy I42.81 Arrhythmogenic cardiomyopathy I42.89 Other cardiomyopathies not elsewhere classified Dilated cardiomyopathy (DCM) is characterized by a diseased heart muscle that causes the heart chambers to thin and stretch, resulting in enlarged heart chambers, making it difficult for the heart to pump blood effectively. This can lead to arrhythmias and heart failure. DCM is the most...
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Article Overview
This article covers clinical background on dilated cardiomyopathy, familial forms, and arrhythmogenic cardiomyopathy, as well as changes to the related ICD-10-CM categories. It provides general information on causes, inheritance, clinical features, and treatment approaches for these conditions.
Why This Topic Matters
The article brings together clinical context and a summary of coding-category changes relevant to cardiomyopathy documentation and coding.
What You Will Learn
- The broad clinical features and possible causes of dilated cardiomyopathy.
- How familial dilated cardiomyopathy is discussed in relation to inheritance and family history.
- The general features and clinical concerns associated with arrhythmogenic cardiomyopathy.
- The scope of the article’s cardiomyopathy coding-category updates.
Who Should Read This
- Medical coders
- Physicians and other healthcare professionals
- Clinical documentation and revenue cycle professionals
Codes Discussed
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