Convert ICD-10 Code W94.22XA to ICD-9

Source ICD-10 Code		Target ICD-9 Code
W94.22XA Expsr to rdct in atmos pressr wh surfc fr underground, init		E902.8 Air pressure change NEC
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 W94.22XA - exposure to reduction in atmospheric pressure while surfacing from underground, initial encounter based on the most recent General Equivalence Mappings (GEMS) information.