Tuberculosis of heart

This code represents a rare manifestation of tuberculosis where the Mycobacterium tuberculosis infection directly affects the heart. This can involve the pericardium (tuberculous pericarditis), myocardium (tuberculous myocarditis), or endocardium (tuberculous endocarditis), leading to various cardiac complications.

Apply this code when documentation explicitly states a diagnosis of tuberculosis affecting any part of the heart. This diagnosis is typically supported by positive cultures, histological findings from cardiac biopsy, or strong clinical evidence in a patient with systemic tuberculosis.

• Always code the underlying tuberculosis (A15-A19) as the primary diagnosis, followed by this code for the specific cardiac manifestation.
• Distinguish from non-tuberculous cardiac infections; ensure the documentation clearly links the cardiac involvement to Mycobacterium tuberculosis.
• Specify the exact cardiac structure involved (e.g., pericardium, myocardium) if further detail is provided and a more specific code exists.