Nonrheumatic aortic valve disorders

**Excludes2:** - aortic valve disorder of unspecified cause but with diseases of mitral and/or tricuspid valve(s) (I08.-) - aortic valve disorder specified as congenital (Q23.0, Q23.1) - aortic valve disorder specified as rheumatic (I06.-) - hypertrophic subaortic stenosis (I42.1)

**Code also:** - , if applicable, bicuspid aortic valve (Q23.81)