ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
chapter 17 Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities /
Q20-Q28 Congenital malformations of the circulatory system /
Q23 Congenital malformations of aortic and mitral valves
Billable ICD-10-CM Code Q23.4
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Q23.4
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Hypoplastic left heart syndrome
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