Q21.11
Secundum atrial septal defect
- Release
- FY 2027
- Effective
Hierarchy
Where Q21.11 sits in the official hierarchy. Each level is the code it is classified under.
- Q21 Congenital malformations of cardiac septa
- Q21.1 Parent Atrial septal defect
- Q21.11 This code Secundum atrial septal defect
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Inclusion Terms
Fenestrated atrial septum
Inclusion Terms
Patent or persistent ostium secundum defect (type II)
Version History
How Q21.11 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentSecundum atrial septal defect
-
FY 2026 Effective
UnchangedSecundum atrial septal defect
Related Codes
Other codes under Q21.1
- Q21.10 Atrial septal defect, unspecified Billable
- Q21.12 Patent foramen ovale Billable
- Q21.13 Coronary sinus atrial septal defect Billable
- Q21.14 Superior sinus venosus atrial septal defect Billable
- Q21.15 Inferior sinus venosus atrial septal defect Billable
- Q21.16 Sinus venosus atrial septal defect, unspecified Billable
- Q21.19 Other specified atrial septal defect Billable
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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