Influenza due to oth ident influenza virus w myocarditis

This code signifies a patient diagnosed with influenza caused by a specific, identified influenza virus (other than avian or novel H1N1) that has led to inflammation of the heart muscle. The myocarditis is a direct complication of the influenza infection.

Apply this code when documentation clearly states influenza due to an identified, non-avian/non-novel H1N1 influenza virus, and also explicitly mentions associated myocarditis. This typically occurs when a patient presents with flu-like symptoms and cardiac involvement, confirmed by diagnostic tests.

• Ensure the documentation specifies an "identified" influenza virus, not just "influenza."
• Verify that the myocarditis is explicitly linked as a complication of the influenza infection.
• Do not use for myocarditis due to unspecified influenza or other viral etiologies.