Q21.9 - Congenital malformation of cardiac septum, unspecified
- Applicable to Congenital malformation of cardiac septum, unspecified
- The 2025 edition of ICD10-CM Q21.9 became effective on October 1, 2024.
- This is the American ICD10-CM version of Q21.9 - other international versions of ICD10 Q21.9 may differ.
- Q21.9 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Inclusion Term
- Septal (heart) defect NOS
The following codes above Q21.9 contain annotation back-references that may be applicable to Q21.9:
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
Billable/Specific Code
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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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