Q21.1 - Atrial septal defect
- Applicable to Atrial septal defect
- The 2025 edition of ICD10-CM Q21.1 became effective on October 1, 2024.
- This is the American ICD10-CM version of Q21.1 - other international versions of ICD10 Q21.1 may differ.
- Q21.1 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- Q21.1 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
- Q21.1 - Atrial septal defect
- Q21.1 - Atrial septal defect
- Q21.10 - Atrial septal defect, unspecified
- Q21.11 - Secundum atrial septal defect
- Q21.12 - Patent foramen ovale
- Q21.13 - Coronary sinus atrial septal defect
- Q21.14 - Superior sinus venosus atrial septal defect
- Q21.15 - Inferior sinus venosus atrial septal defect
- Q21.16 - Sinus venosus atrial septal defect, unspecified
- Q21.19 - Other specified atrial septal defect
Type 2 Excludes
- ostium primum atrial septal defect (type I) (Q21.20)
Non-Billable/Non-Specific Code
The following codes above Q21.1 contain annotation back-references that may be applicable to Q21.1:
- Chapter: Q00-Q99 - Congenital malformations, deformations and chromosomal abnormalities
- Section: Q20-Q28 - Congenital malformations of the circulatory system
- Category: Q21 - Congenital malformations of cardiac septa
Browse other similar CM codes:
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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