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Q21.1 Atrial septal defect

Category
Q21.1
Atrial septal defect
EXCLUDES
Excludes2: ostium primum atrial septal defect (type I) (Q21.20)
Chapter
XVII · Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
Section
Q20-Q28
Valid from
Source

CMS ICD-10-CM Tabular List, edition FY2026.