AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2022 Issue 4; New/Revised ICD-10-CM Codes

Malignant Pericardial Effusion

Code I31.3, Pericardial effusion (noninflammatory), has been expanded and two new codes created as follows:I31.31, Malignant pericardial effusion in diseases classified elsewhere I31.39, Other pericardial effusion (noninflammatory) Malignant pericardial effusion is a common and serious complication of advanced neoplastic disease. Although primary tumors of the pericardium are rare, metastasis to the heart and pericardium has been reported in approximately 20% of cancer patients. Patients with malignant pericardial effusion typically have a very poor prognosis. The instructional note at code I31.31 provides sequencing direction, and the underlying neoplasm is sequenced first. ...

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