
Pleurisy
- inflammation of the pleura, with exudation into its cavity and upon its surface; may occur as either an acute or a chronic process.

Pleurisy without effusion or current tuberculosis
- inflammation of the pleura, with exudation into its cavity and upon its surface; may occur as either an acute or a chronic process.

Pleurisy with effusion with a bacterial cause other than tuberculosis

Other specified forms of pleural effusion except tuberculous

Unspecified pleural effusion
- presence of fluid in the pleural cavity resulting from excessive transudation or exudation from the pleural surfaces; it is a sign of disease and not a diagnosis in itself.
- An abnormal collection of fluid between the thin layers of tissue (pleura) lining the lung and the wall of the chest cavity.
- Increased amounts of fluid within the pleural cavity containing no malignant cells