J91.8
Pleural effusion in other conditions classified elsewhere
ICD-10 code J91.8 for Pleural effusion in other conditions classified elsewhere
Code first underlying disease, such as:
filariasis (B74.0-B74.9)
influenza (J09.X2, J10.1, J11.1)
ICD-10 International Statistical Classification of Diseases and Related Health Problems 10th Revision