Convert ICD-10 Code Q23.0 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
Q23.0 Congenital stenosis of aortic valve		746.3 Cong aorta valv stenosis

ICD-10 to ICD-9 crosswalk for code Q23.0 - congenital stenosis of aortic valve based on the most recent General Equivalence Mappings (GEMS) information.