Convert ICD-10 Code M31.6 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
M31.6 Other giant cell arteritis		446.5 Giant cell arteritis
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 M31.6 - other giant cell arteritis based on the most recent General Equivalence Mappings (GEMS) information.