ICDwise
Q00–Q99

Congenital Malformations, Deformations and Chromosomal Abnormalities

Down syndrome, congenital heart defects

1,086 codes · FY2026 · ICD-10-CM · Page 5 of 22

Q25.46 Tortuous aortic arch Billable Q25.47 Right aortic arch Billable Q25.48 Anomalous origin of subclavian artery Billable Q25.49 Other congenital malformations of aorta Billable Q25.5 Atresia of pulmonary artery Billable Q25.6 Stenosis of pulmonary artery Billable Q25.7 Other congenital malformations of pulmonary artery Non-billable Q25.71 Coarctation of pulmonary artery Billable Q25.72 Congenital pulmonary arteriovenous malformation Billable Q25.79 Other congenital malformations of pulmonary artery Billable Q25.8 Other congenital malformations of other great arteries Billable Q25.9 Congenital malformation of great arteries, unspecified Billable Q26 Congenital malformations of great veins Non-billable Q26.0 Congenital stenosis of vena cava Billable Q26.1 Persistent left superior vena cava Billable Q26.2 Total anomalous pulmonary venous connection Billable Q26.3 Partial anomalous pulmonary venous connection Billable Q26.4 Anomalous pulmonary venous connection, unspecified Billable Q26.5 Anomalous portal venous connection Billable Q26.6 Portal vein-hepatic artery fistula Billable Q26.8 Other congenital malformations of great veins Billable Q26.9 Congenital malformation of great vein, unspecified Billable Q27 Other congenital malformations of peripheral vascular system Non-billable Q27.0 Congenital absence and hypoplasia of umbilical artery Billable Q27.1 Congenital renal artery stenosis Billable Q27.2 Other congenital malformations of renal artery Billable Q27.3 Arteriovenous malformation (peripheral) Non-billable Q27.30 Arteriovenous malformation, site unspecified Billable Q27.31 Arteriovenous malformation of vessel of upper limb Billable Q27.32 Arteriovenous malformation of vessel of lower limb Billable Q27.33 Arteriovenous malformation of digestive system vessel Billable Q27.34 Arteriovenous malformation of renal vessel Billable Q27.39 Arteriovenous malformation, other site Billable Q27.4 Congenital phlebectasia Billable Q27.8 Other specified congenital malformations of peripheral vascular system Billable Q27.9 Congenital malformation of peripheral vascular system, unspecified Billable Q28 Other congenital malformations of circulatory system Non-billable Q28.0 Arteriovenous malformation of precerebral vessels Billable Q28.1 Other malformations of precerebral vessels Billable Q28.2 Arteriovenous malformation of cerebral vessels Billable Q28.3 Other malformations of cerebral vessels Billable Q28.8 Other specified congenital malformations of circulatory system Billable Q28.9 Congenital malformation of circulatory system, unspecified Billable Q30 Congenital malformations of nose Non-billable Q30.0 Choanal atresia Billable Q30.1 Agenesis and underdevelopment of nose Billable Q30.2 Fissured, notched and cleft nose Billable Q30.3 Congenital perforated nasal septum Billable Q30.8 Other congenital malformations of nose Billable Q30.9 Congenital malformation of nose, unspecified Billable
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