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 2018 version of the ICD-10-CM diagnosis code B33.22

Valid for Submission
The code B33.22 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Certain infectious and parasitic diseases (A00–B99)
    • 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 V35.0)


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

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


Viral Infections

Viruses are very tiny germs. They are made of genetic material inside of a protein coating. Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS, smallpox, and Ebola.

Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves. This can kill, damage, or change the cells and make you sick. Different viruses attack certain cells in your body such as your liver, respiratory system, or blood.

When you get a virus, you may not always get sick from it. Your immune system may be able to fight it off.

For most viral infections, treatments can only help with symptoms while you wait for your immune system to fight off the virus. Antibiotics do not work for viral infections. There are antiviral medicines to treat some viral infections. Vaccines can help prevent you from getting many viral diseases.

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

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