Q20-Q28
Congenital malformations of the circulatory system
Codes in this block
118 codes
Billableusable codeNon-billableheader / grouping codeRisk-adjusting
- Q20Congenital malformations of cardiac chambers and connectionsNon-billable
- Q20.0Common arterial trunkBillable
- Q20.1Double outlet right ventricleBillable
- Q20.2Double outlet left ventricleBillable
- Q20.3Discordant ventriculoarterial connectionBillable
- Q20.4Double inlet ventricleBillable
- Q20.5Discordant atrioventricular connectionBillable
- Q20.6Isomerism of atrial appendagesBillable
- Q20.8Other congenital malformations of cardiac chambers and connectionsBillable
- Q20.9Congenital malformation of cardiac chambers and connections, unspecifiedBillable
- Q21Congenital malformations of cardiac septaNon-billable
- Q21.0Ventricular septal defectBillable
- Q21.1Atrial septal defectNon-billable
- Q21.10Atrial septal defect, unspecifiedBillable
- Q21.11Secundum atrial septal defectBillable
- Q21.12Patent foramen ovaleBillable
- Q21.13Coronary sinus atrial septal defectBillable
- Q21.14Superior sinus venosus atrial septal defectBillable
- Q21.15Inferior sinus venosus atrial septal defectBillable
- Q21.16Sinus venosus atrial septal defect, unspecifiedBillable
- Q21.19Other specified atrial septal defectBillable
- Q21.2Atrioventricular septal defectNon-billable
- Q21.20Atrioventricular septal defect, unspecified as to partial or completeBillable
- Q21.21Partial atrioventricular septal defectBillable
- Q21.22Transitional atrioventricular septal defectBillable
- Q21.23Complete atrioventricular septal defectBillable
- Q21.3Tetralogy of FallotBillable
- Q21.4Aortopulmonary septal defectBillable
- Q21.8Other congenital malformations of cardiac septaBillable
- Q21.9Congenital malformation of cardiac septum, unspecifiedBillable
- Q22Congenital malformations of pulmonary and tricuspid valvesNon-billable
- Q22.0Pulmonary valve atresiaBillable
- Q22.1Congenital pulmonary valve stenosisBillable
- Q22.2Congenital pulmonary valve insufficiencyBillable
- Q22.3Other congenital malformations of pulmonary valveBillable
- Q22.4Congenital tricuspid stenosisBillable
- Q22.5Ebstein's anomalyBillable
- Q22.6Hypoplastic right heart syndromeBillable
- Q22.8Other congenital malformations of tricuspid valveBillable
- Q22.9Congenital malformation of tricuspid valve, unspecifiedBillable
- Q23Congenital malformations of aortic and mitral valvesNon-billable
- Q23.0Congenital stenosis of aortic valveBillable
- Q23.1Congenital insufficiency of aortic valveBillable
- Q23.2Congenital mitral stenosisBillable
- Q23.3Congenital mitral insufficiencyBillable
- Q23.4Hypoplastic left heart syndromeBillable
- Q23.8Other congenital malformations of aortic and mitral valvesNon-billable
- Q23.81Bicuspid aortic valveBillable
- Q23.82Congenital mitral valve cleft leafletBillable
- Q23.88Other congenital malformations of aortic and mitral valvesBillable
- Q23.9Congenital malformation of aortic and mitral valves, unspecifiedBillable
- Q24Other congenital malformations of heartNon-billable
- Q24.0DextrocardiaBillable
- Q24.1LevocardiaBillable
- Q24.2Cor triatriatumBillable
- Q24.3Pulmonary infundibular stenosisBillable
- Q24.4Congenital subaortic stenosisBillable
- Q24.5Malformation of coronary vesselsBillable
- Q24.6Congenital heart blockBillable
- Q24.8Other specified congenital malformations of heartBillable
- Q24.9Congenital malformation of heart, unspecifiedBillable
- Q25Congenital malformations of great arteriesNon-billable
- Q25.0Patent ductus arteriosusBillable
- Q25.1Coarctation of aortaBillable
- Q25.2Atresia of aortaNon-billable
- Q25.21Interruption of aortic archBillable
- Q25.29Other atresia of aortaBillable
- Q25.3Supravalvular aortic stenosisBillable
- Q25.4Other congenital malformations of aortaNon-billable
- Q25.40Congenital malformation of aorta unspecifiedBillable
- Q25.41Absence and aplasia of aortaBillable
- Q25.42Hypoplasia of aortaBillable
- Q25.43Congenital aneurysm of aortaBillable
- Q25.44Congenital dilation of aortaBillable
- Q25.45Double aortic archBillable
- Q25.46Tortuous aortic archBillable
- Q25.47Right aortic archBillable
- Q25.48Anomalous origin of subclavian arteryBillable
- Q25.49Other congenital malformations of aortaBillable
- Q25.5Atresia of pulmonary arteryBillable
- Q25.6Stenosis of pulmonary arteryBillable
- Q25.7Other congenital malformations of pulmonary arteryNon-billable
- Q25.71Coarctation of pulmonary arteryBillable
- Q25.72Congenital pulmonary arteriovenous malformationBillable
- Q25.79Other congenital malformations of pulmonary arteryBillable
- Q25.8Other congenital malformations of other great arteriesBillable
- Q25.9Congenital malformation of great arteries, unspecifiedBillable
- Q26Congenital malformations of great veinsNon-billable
- Q26.0Congenital stenosis of vena cavaBillable
- Q26.1Persistent left superior vena cavaBillable
- Q26.2Total anomalous pulmonary venous connectionBillable
- Q26.3Partial anomalous pulmonary venous connectionBillable
- Q26.4Anomalous pulmonary venous connection, unspecifiedBillable
- Q26.5Anomalous portal venous connectionBillable
- Q26.6Portal vein-hepatic artery fistulaBillable
- Q26.8Other congenital malformations of great veinsBillable
- Q26.9Congenital malformation of great vein, unspecifiedBillable
- Q27Other congenital malformations of peripheral vascular systemNon-billable
- Q27.0Congenital absence and hypoplasia of umbilical arteryBillable
- Q27.1Congenital renal artery stenosisBillable
- Q27.2Other congenital malformations of renal arteryBillable
- Q27.3Arteriovenous malformation (peripheral)Non-billable
- Q27.30Arteriovenous malformation, site unspecifiedBillable
- Q27.31Arteriovenous malformation of vessel of upper limbBillable
- Q27.32Arteriovenous malformation of vessel of lower limbBillable
- Q27.33Arteriovenous malformation of digestive system vesselBillable
- Q27.34Arteriovenous malformation of renal vesselBillable
- Q27.39Arteriovenous malformation, other siteBillable
- Q27.4Congenital phlebectasiaBillable
- Q27.8Other specified congenital malformations of peripheral vascular systemBillable
- Q27.9Congenital malformation of peripheral vascular system, unspecifiedBillable
- Q28Other congenital malformations of circulatory systemNon-billable
- Q28.0Arteriovenous malformation of precerebral vesselsBillable
- Q28.1Other malformations of precerebral vesselsBillable
- Q28.2Arteriovenous malformation of cerebral vesselsBillable
- Q28.3Other malformations of cerebral vesselsBillable
- Q28.8Other specified congenital malformations of circulatory systemBillable
- Q28.9Congenital malformation of circulatory system, unspecifiedBillable
Official Guidelines for Q20-Q28
FY 2026 ›Sections that reference codes in Q20-Q28