Acute rheumatic heart disease, unspecified

This diagnosis code signifies an acute inflammatory process affecting the heart, specifically the heart valves, myocardium, or pericardium, as a sequela of rheumatic fever. The "unspecified" nature indicates that the specific cardiac structures involved are not documented or are not yet clearly defined.

Apply this code when documentation confirms a diagnosis of acute rheumatic heart disease, but the physician has not specified which cardiac structures (e.g., mitral valve, aortic valve, myocardium) are primarily affected. This is often used in initial presentations or when the full extent of cardiac involvement is still being evaluated.

• Avoid using this code if specific valvular involvement (e.g., acute rheumatic mitral valvulitis) is documented; instead, use a more specific code.
• Always look for documentation of a preceding streptococcal infection or rheumatic fever to support this diagnosis.
• Consider sequencing this code as a primary diagnosis when it is the reason for the encounter, followed by any associated symptoms or complications.