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Q23.4 Hypoplastic left heart syndrome
BackQ23Congenital malformations of aortic and mitral valvesCategory7 →Q23.0Congenital stenosis of aortic valveCategoryQ23.1Congenital insufficiency of aortic valveCategoryQ23.2Congenital mitral stenosisCategoryQ23.3Congenital mitral insufficiencyCategoryQ23.4Hypoplastic left heart syndromeCategoryQ23.8Other congenital malformations of aortic and mitral valvesCategory3 →Q23.81Bicuspid aortic valveCategoryQ23.82Congenital mitral valve cleft leafletCategoryQ23.88Other congenital malformations of aortic and mitral valvesCategoryQ23.9Congenital malformation of aortic and mitral valves, unspecifiedCategory
CategoryCODABLE
Q23.4
Hypoplastic left heart syndrome
- Chapter
- XVII · Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
- Section
- Q20-Q28
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.