Convert ICD-10 Code W42.9XXD to ICD-9

Source ICD-10 Code		Target ICD-9 Code
W42.9XXD Exposure to other noise, subsequent encounter		E928.1 Exposure to noise
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 W42.9XXD - exposure to other noise, subsequent encounter based on the most recent General Equivalence Mappings (GEMS) information.