ICD-10 Diagnosis Code B33.22

Viral myocarditis

Diagnosis Code B33.22

ICD-10: B33.22
Short Description: Viral myocarditis
Long Description: Viral myocarditis
This is the 2017 version of the ICD-10-CM diagnosis code B33.22

Code Classification
  • Certain infectious and parasitic diseases
    • Other viral diseases (B25-B34)
      • Other viral diseases, not elsewhere classified (B33)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code B33.22 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.

  • Acute aseptic myocarditis of the newborn
  • Acute myocarditis - coxsackie
  • Adenoviral myocarditis
  • Aseptic myocarditis of newborn
  • Coxsackie carditis
  • Coxsackie myocarditis
  • Coxsackie myocarditis of newborn
  • Enterovirus heart infection
  • Myocarditis - virus unidentified
  • Myocarditis caused by avian influenza
  • Myocarditis caused by influenza A
  • Myocarditis caused by Influenza A virus subtype H1N1
  • Myocarditis caused by influenza virus
  • Neonatal coxsackie virus syndrome
  • Viral cardiovascular infection
  • Viral cardiovascular infection
  • Viral carditis
  • Viral carditis
  • Viral myocarditis
  • Viral myocarditis
  • Viral myocarditis

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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Viral Infections

Viruses are capsules with genetic material inside. They are very tiny, much smaller than bacteria. Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS, smallpox and hemorrhagic fevers.

Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves. This eventually kills the cells, which can make you sick.

Viral infections are hard to treat because viruses live inside your body's cells. They are "protected" from medicines, which usually move through your bloodstream. Antibiotics do not work for viral infections. There are a few antiviral medicines available. Vaccines can help prevent you from getting many viral diseases.

NIH: National Institute of Allergy and Infectious Diseases

  • ECHO virus
  • Enterovirus D68
  • Hand-foot-mouth disease
  • Herpangina
  • Molluscum contagiosum
  • Parainfluenza
  • Roseola
  • Zika virus disease

[Read More]
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