Convert ICD-10 Code Q25.45 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
Q25.45 Double aortic arch		747.21 Anomalies of aortic arch
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 Q25.45 - double aortic arch based on the most recent General Equivalence Mappings (GEMS) information.