- Presenting symptoms – May include chest pain, shortness of breath, arrhythmias, heart failure, or sudden cardiac death.
- Pattern of myocardial involvement – May be focal, patchy, or diffuse.
- Severity and course – Variable. While many cases are mild or even subclinical, with a self-limited course followed by complete resolution, other patients may develop fulminant life-threatening heart failure.
I51.4 – Myocarditis, unspecified
50920009 – Myocarditis