Site-Specific Factor 1

Pleural Effusion


**Note 1:** One of the most common symptoms of mesothelioma is a pleural effusion, or an accumulation of fluid between the parietal pleura (the pleura covering the chest wall and diaphragm) and the visceral pleura (the pleura covering the lungs). Record the absence or presence of pleural effusion and specifically, if present, whether the pleural effusion is non-malignant, malignant, or NOS. **Note 2:** If imaging indicates a pleural effusion but pleural fluid cytology is described as negative for malignant cells, assign code 010. **Note 3:** If pleural fluid cytology is described as suspicious/suspicious for mesothelioma, assign code 020. **Note 4:** If pleural fluid cytology is described as atypical/atypical mesothelial cells (not specifically non-malignant or malignant), assign code 030.




NAACCR #2880


Code Description
000 No pleural effusion
010 Pleural effusion, non-malignant (negative)
020 Pleural effusion, malignant (positive)
030 Pleural effusion, NOS
988 Not applicable: Information not collected for this case
(If this item is required by your standard setter, use of code 988 will result in an edit error.)
999 Unknown if pleural effusion; Not documented in patient record