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Q23.0 - Congenital stenosis of aortic valve


The ICD 10 Code for Congenital stenosis of aortic valve is listed as Q23.0.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: Q23.0
Description: Congenital stenosis of aortic valve
  • Congenital aortic atresia
  • Congenital aortic stenosis NOS
  • Excludes1: congenital stenosis of aortic valve in hypoplastic left heart syndrome (Q23.4)
  • congenital subaortic stenosis (Q24.4)
  • supravalvular aortic stenosis (congenital) (Q25.3)
Diagnostic Related Groups
(MS-DRG v30.0)
306 - Cardiac Congenital & Valvular Disorders W Mcc
307 - Cardiac Congenital & Valvular Disorders W/o Mcc
Chapter Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Block Congenital malformations of the circulatory system (Q20-Q28)
Parent Q23 - Congenital malformations of aortic and mitral valves
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 746.3 - Congenital stenosis of aortic valve
ICD-10-CM Siblings (same level / similar specificity) of Q23.0:
Q23.1 - Congenital insufficiency of aortic valve
Q23.2 - Congenital mitral stenosis
Q23.3 - Congenital mitral insufficiency
Q23.4 - Hypoplastic left heart syndrome
Q23.8 - Other congenital malformations of aortic and mitral valves
Q23.9 - Congenital malformation of aortic and mitral valves, unspecified