ICD-10 Diagnosis Code A36.81

Diphtheritic cardiomyopathy

Diagnosis Code A36.81

ICD-10: A36.81
Short Description: Diphtheritic cardiomyopathy
Long Description: Diphtheritic cardiomyopathy
This is the 2017 version of the ICD-10-CM diagnosis code A36.81

Code Classification
  • Certain infectious and parasitic diseases
    • Other bacterial diseases (A30-A49)
      • Diphtheria (A36)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code A36.81 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


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.
  • 032.82 - Diphtheritic myocarditis

  • Acute myocarditis - diphtheritic
  • Cardiomyopathy due to diphtheria infection
  • Diphtheritic myocarditis

Index of Diseases and Injuries
References found for the code A36.81 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

  • Cardiac catheterization
  • Cardiomyopathy
  • Dilated cardiomyopathy
  • Electrocardiogram
  • Hypertrophic cardiomyopathy

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Diphtheria is a serious bacterial infection. You can catch it from a person who has the infection and coughs or sneezes. You can also get infected by coming in contact with an object, such as a toy, that has bacteria on it.

Diphtheria usually affects the nose and throat. Symptoms include

  • Sore throat
  • Swollen glands in the neck
  • Fever
  • Weakness

Your doctor will diagnose it based on your signs and symptoms and a lab test. Getting treatment for diphtheria quickly is important. If your doctor suspects that you have it, you'll start treatment before the lab tests come back. Treatment is with antibiotics.

The diphtheria, pertussis, and tetanus vaccine can prevent diphtheria, but its protection does not last forever. Children need another dose, or booster, at about age 12. Then, as adults, they should get a booster every 10 years. Diphtheria is very rare in the United States because of the vaccine.

Centers for Disease Control and Prevention

  • Diphtheria
  • Diphtheria and the Vaccine (Shot) to Prevent It: Information for Parents (Centers for Disease Control and Prevention)
  • Diphtheria and the Vaccine (Shot) to Prevent It: Information for Parents (American Academy of Family Physicians)
  • Diphtheria and the Vaccine (Shot) to Prevent It: Information for Parents (American Academy of Pediatrics)

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