Q23.1
Congenital insufficiency of aortic valve
Coding guidance (WHO 2019)
Bicuspid aortic valve Congenital aortic insufficiency
Sibling codes
Q23Congenital malformations of aortic and mitral valvesQ23.0Congenital stenosis of aortic valveQ23.2Congenital mitral stenosisQ23.3Congenital mitral insufficiencyQ23.4Hypoplastic left heart syndromeQ23.8Other congenital malformations of aortic and mitral valvesQ23.9Congenital malformation of aortic and mitral valves, unspecified