2025
ICD-10-CM
Diagnosis
Code

Q21.11 Secundum atrial septal defect

  • Billable
  • POA Exempt
  • 2023–2025

Q21.11 is a billable/specific and POA-exempt diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Secundum atrial septal defect.

Inclusion term

  • Fenestrated atrial septum

  • Patent or persistent ostium secundum defect (type II)

Versions

  1. 2025

    No changes

  2. 2024

    No changes

  3. 2023

    New code