Convert ICD-10 Code I25.721 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
I25.721 Athscl autologous artery CABG w ang pctrs w documented spasm		414.04 Cor ath artry bypas grft
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
I25.721 Athscl autologous artery CABG w ang pctrs w documented spasm		413.9 Angina pectoris NEC/NOS
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.

ICD-10 to ICD-9 crosswalk for code I25.721 - atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris with documented spasm based on the most recent General Equivalence Mappings (GEMS) information.