ICD Code Q21.1

ICD code Q21.1 is an atrial septal defect, which is a congenital heart condition where there is a hole in the wall (septum) that separates the two upper chambers (atria) of the heart.

1. Presence of a defect or opening in the atrial septum confirmed by echocardiography or other cardiac imaging

2. Evidence of left-to-right shunt at the atrial level

3. Symptoms such as exertional dyspnea, fatigue, or palpitations

4. Detection of a systolic murmur at the left upper sternal border on physical examination

5. Right atrial and right ventricular enlargement on imaging or electrocardiogram

6. Absence of other congenital heart defects that would better explain the findings

Relevant CPT codes for ICD code Q21.1 include:

- 93580: Percutaneous transcatheter closure of congenital interatrial communication (e.g., Fontan fenestration, atrial septal defect)

- 33641: Repair of secundum atrial septal defect with cardiopulmonary bypass

- 33647: Repair of sinus venosus atrial septal defect with or without partial anomalous pulmonary venous return, with cardiopulmonary bypass

- 33230: Insertion of implantable heart assist system, atrial septal defect closure device

- 93315: Echocardiography, transesophageal (TEE) for guidance during interventional procedure

These CPT codes are commonly associated with the treatment of ICD code Q21.1.

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