Convert ICD-10 Code H91.23 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
H91.23 Sudden idiopathic hearing loss, bilateral		388.2 Sudden hearing loss 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 H91.23 - sudden idiopathic hearing loss, bilateral based on the most recent General Equivalence Mappings (GEMS) information.