ICD-10-CM > Q00-QA0 > Q20-Q28 > Q24 Q24 Other congenital malformations of heart Non-Billable/Non-Specific Type 1 Excludes endocardial fibroelastosis (I42.4) Codes Q24.0DextrocardiaQ24.1LevocardiaQ24.2Cor triatriatumQ24.3Pulmonary infundibular stenosisQ24.4Congenital subaortic stenosisQ24.5Malformation of coronary vesselsQ24.6Congenital heart blockQ24.8Other specified congenital malformations of heartQ24.9Congenital malformation of heart, unspecified