Malignant neoplasm of visceral pleura

This code signifies a primary cancerous tumor originating in the visceral pleura, which is the inner membrane directly covering the lungs. This malignancy is distinct from secondary (metastatic) tumors or benign growths of the pleura.

Apply this code when documentation clearly indicates a primary malignant neoplasm of the visceral pleura, often diagnosed via biopsy or imaging. It is appropriate for cases of mesothelioma or other primary pleural cancers affecting the visceral layer.

• Differentiate carefully between primary and secondary (metastatic) pleural malignancies; this code is for primary only.
• Ensure documentation specifies "visceral pleura" as opposed to "parietal pleura" or "unspecified pleura."
• Do not use for benign pleural tumors or inflammatory conditions of the pleura.