ICD-10 Diagnosis Code I43

Cardiomyopathy in diseases classified elsewhere

Diagnosis Code I43

ICD-10: I43
Short Description: Cardiomyopathy in diseases classified elsewhere
Long Description: Cardiomyopathy in diseases classified elsewhere
This is the 2017 version of the ICD-10-CM diagnosis code I43

Valid for Submission
The code I43 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the circulatory system (I00–I99)
    • Other forms of heart disease (I30-I52)
      • Cardiomyopathy in diseases classified elsewhere (I43)

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Manifestation diagnoses Additional informationCallout TooltipManifestation diagnoses
Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Diagnostic Related Groups
The diagnosis code I43 is grouped in the following Diagnostic Related Group(s) (MS-DRG V34.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Cardiac glycogen phosphorylase kinase deficiency
  • Cardiomyopathy associated with another disorder
  • Cardiomyopathy in Duchenne muscular dystrophy
  • Cardiomyopathy in Friedreich's ataxia
  • Cardiomyopathy in myotonic dystrophy
  • Dilated cardiomyopathy associated with connective tissue disorder
  • Dilated cardiomyopathy secondary to systemic lupus erythematosus
  • Familial cardiomyopathy
  • Familial restrictive cardiomyopathy
  • Glycogen phosphorylase kinase deficiency
  • Glycogen phosphorylase kinase deficiency, autosomal recessive
  • Primary eosinophilic endomyocardial cardiomyopathy
  • Primary eosinophilic endomyocardial restrictive cardiomyopathy
  • Primary restrictive cardiomyopathy
  • Restrictive cardiomyopathy secondary to familial storage disease
  • Restrictive cardiomyopathy with endomyocardial fibrosis
  • Thyrotoxic heart disease

Index of Diseases and Injuries
References found for the code I43 in the Index of Diseases and Injuries:

Information for Patients


Also called: Dilated cardiomyopathy, Hypertrophic cardiomyopathy, Myocardiopathy, Restrictive cardiomyopathy

Cardiomyopathy is the name for diseases of the heart muscle. These diseases enlarge your heart muscle or make it thicker and more rigid than normal. In rare cases, scar tissue replaces the muscle tissue.

Some people live long, healthy lives with cardiomyopathy. Some people don't even realize they have it. In others, however, it can make the heart less able to pump blood through the body. This can cause serious complications, including

  • Heart failure
  • Abnormal heart rhythms
  • Heart valve problems
  • Sudden cardiac arrest

Heart attacks, high blood pressure, infections, and other diseases can all cause cardiomyopathy. Some types of cardiomyopathy run in families. In many people, however, the cause is unknown. Treatment might involve medicines, surgery, other medical procedures, and lifestyle changes.

NIH: National Heart, Lung, and Blood Institute

  • Cardiomyopathy (Medical Encyclopedia)
  • Dilated cardiomyopathy (Medical Encyclopedia)
  • Electrocardiogram (Medical Encyclopedia)
  • Hypertrophic cardiomyopathy (Medical Encyclopedia)

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