Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)

Note:
Codes from this chapter are not for use on maternal records
Excludes 2:
inborn errors of metabolism (E70-E88)

Congenital malformations of the circulatory system (Q20-Q28)

Q20 Congenital malformations of cardiac chambers and connections [+]
Excludes 1: dextrocardia with situs inversus (Q89.3)
mirror-image atrial arrangement with situs inversus (Q89.3)
Q21 Congenital malformations of cardiac septa [+]
Excludes 1: acquired cardiac septal defect (I51.0)
Q22 Congenital malformations of pulmonary and tricuspid valves [+]
Q23 Congenital malformations of aortic and mitral valves [+]
Q24 Other congenital malformations of heart [+]
Excludes 1: endocardial fibroelastosis (I42.4)
Q25 Congenital malformations of great arteries [+]
Q26 Congenital malformations of great veins [+]
Q27 Other congenital malformations of peripheral vascular system [+]
Excludes 2: anomalies of cerebral and precerebral vessels (Q28.0-Q28.3)
anomalies of coronary vessels (Q24.5)
anomalies of pulmonary artery (Q25.5-Q25.7)
congenital retinal aneurysm (Q14.1)
hemangioma and lymphangioma (D18.-)
Q28 Other congenital malformations of circulatory system [+]
Excludes 1: congenital aneurysm NOS (Q27.8)
congenital coronary aneurysm (Q24.5)
ruptured cerebral arteriovenous malformation (I60.8)
ruptured malformation of precerebral vessels (I72.0)
Excludes 2: congenital peripheral aneurysm (Q27.8)
congenital pulmonary aneurysm (Q25.79)
congenital retinal aneurysm (Q14.1)

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