Convert ICD-10 Code J91.8 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
J91.8 Pleural effusion in other conditions classified elsewhere		511.9 Pleural effusion NOS
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

ICD-10 to ICD-9 crosswalk for code J91.8 - pleural effusion in other conditions classified elsewhere based on the most recent General Equivalence Mappings (GEMS) information.