Chagas' disease with heart involvement

This code signifies chronic Chagas' disease where the Trypanosoma cruzi infection has progressed to affect the heart. This cardiac involvement can manifest as cardiomyopathy, arrhythmias, or heart failure, representing a severe complication of the parasitic infection.

Apply this code when documentation explicitly states a diagnosis of Chagas' disease with associated cardiac manifestations, such as Chagasic cardiomyopathy or Chagasic heart disease. Supporting documentation should include diagnostic confirmation of T. cruzi infection and evidence of cardiac involvement (e.g., echocardiogram findings, EKG abnormalities, clinical signs of heart failure).

• Always ensure documentation specifies heart involvement for this code; otherwise, use a code for Chagas' disease without cardiac complications.
• Do not confuse with acute Chagas' disease, which has different manifestations and coding.
• Sequence this code as a primary diagnosis when the cardiac involvement is the main reason for the encounter, or as a secondary diagnosis when managing other conditions in a patient with known Chagasic heart disease.