423.9
ICD-9-CMThis code signifies a general, unspecified pathological condition affecting the pericardium, the sac-like membrane surrounding the heart. It indicates that a disease process is present but the specific nature, etiology, or type of pericardial involvement is not documented.
Use this code when documentation clearly indicates a disease of the pericardium, but lacks further specificity regarding the type (e.g., pericarditis, effusion, adhesion). This is appropriate for initial encounters or when diagnostic workup is incomplete and a more definitive diagnosis cannot yet be assigned.
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