Convert ICD-9 Code 710.4 to ICD-10

Source ICD-9 Code		Target ICD-10 Code
710.4 Polymyositis		M33.20 Polymyositis, organ involvement unspecified
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-9 to ICD-10 crosswalk for code 710.4 - polymyositis based on the most recent General Equivalence Mappings (GEMS) information.