Myocarditis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Myocarditis (inflammatory cardiomyopathy) is inflammation of the heart muscle generally in the presence of a dilated cardiomyopathy that results from exposure to either discrete infectious external antigens such as viruses, bacteria, fungal or parasites; non-infectious external antigens such as hypersensitivity to drugs; or internal non-infectious triggers such as autoimmune or hypersensitive activation against self-antigens.

code elsewhere

• Acute rheumatic myocarditis  (1B41.2)
• Sarcoid myocarditis  (4B20.Y)
• Loeffler endocarditis  (BC43.20)

sections/codes in this section (BC42-BC42)

• Giant cell myocarditis  (BC42.0)
• Infectious myocarditis  (BC42.1)
• Hypersensitivity myocarditis  (BC42.2)
• Rheumatic myocarditis  (BC42.3)
• Other specific myocarditis  (BC42.Y)
• Myocarditis, unspecified  (BC42.Z)

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