Convert ICD-10 Code I77.810 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
I77.810 Thoracic aortic ectasia		447.71 Thoracic aortic ectasia

ICD-10 to ICD-9 crosswalk for code I77.810 - thoracic aortic ectasia based on the most recent General Equivalence Mappings (GEMS) information.