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ICD-10 Codes Sections (Q20-Q28)

• Q20 Congenital malformations of cardiac chambers and connections
• Q21 Congenital malformations of cardiac septa
• Q22 Congenital malformations of pulmonary and tricuspid valves
• Q23 Congenital malformations of aortic and mitral valves
• Q24 Other congenital malformations of heart
• Q25 Congenital malformations of great arteries
• Q26 Congenital malformations of great veins
• Q27 Other congenital malformations of peripheral vascular system
• Q28 Other congenital malformations of circulatory system

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