Convert ICD-10 Code I23.1 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
I23.1 Atrial septal defect as current complication following AMI		429.71 Acq cardiac septl defect
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 I23.1 - atrial septal defect as current complication following acute myocardial infarction based on the most recent General Equivalence Mappings (GEMS) information.