Mesothelioma of pericardium

This code represents a rare and aggressive primary malignant tumor originating from the mesothelial cells lining the pericardium, the sac surrounding the heart. This type of cancer is often associated with asbestos exposure and can lead to symptoms such as chest pain, shortness of breath, and fluid accumulation around the heart.

Use this code when documentation clearly indicates a primary malignant mesothelioma specifically affecting the pericardium. This diagnosis is typically confirmed through biopsy and histopathological examination of pericardial tissue. Clinical notes should detail the location and malignant nature of the tumor.

• Differentiate from secondary metastatic tumors to the pericardium; this code is for primary mesothelioma.
• Ensure documentation specifies "mesothelioma" and not just "malignant neoplasm" of the pericardium.
• Review the "Excludes1" note carefully to avoid co-coding with other malignant neoplasms of the pericardium.