Convert ICD-10 Code W94.0XXA to ICD-9

Source ICD-10 Code		Target ICD-9 Code
W94.0XXA Exposure to prolonged high air pressure, initial encounter		E902.0 High altitude residence
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 W94.0XXA - exposure to prolonged high air pressure, initial encounter based on the most recent General Equivalence Mappings (GEMS) information.