Pleural effusion, not elsewhere classified

**Inclusion terms:** - Encysted pleurisy - Pleural effusion NOS - Pleurisy with effusion (exudative) (serous)

**Excludes1:** - chylous (pleural) effusion (J94.0) - malignant pleural effusion (J91.0)) - pleurisy NOS (R09.1) - tuberculous pleural effusion (A15.6)