- Q21.13 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM Q21.13 became effective on October 1, 2022.
- This is the American ICD-10-CM version of Q21.13 – other international versions of ICD-10 Q21.13 may differ.
ICD-10-CM Q21.13 is grouped within Diagnostic Related Group(s):
- 306 Cardiac congenital and valvular disorders with mcc
- 307 Cardiac congenital and valvular disorders without mcc
Applicable To
- Coronary sinus defect
- Unroofed coronary sinus
Code History
- 2024 (effective 10/1/2022): New code
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to Q21.13:
- coronary sinus > atrial septal Q21.10
- coronary sinus > Defect, defective Q89.9