Convert ICD-10 Code H74.91 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
H74.91 Unspecified disorder of right middle ear and mastoid		385.9 Dis mid ear/mastoid 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 H74.91 - unspecified disorder of right middle ear and mastoid based on the most recent General Equivalence Mappings (GEMS) information.