I27.849

What This Code Means

This code describes a heart condition where a surgical procedure called the Fontan operation was performed to create an abnormal connection in the heart's circulation, but the specific type or location of this connection is not specified in the medical record. This is typically used in patients with complex congenital heart defects who have undergone this specialized surgery.

Coding Tips

• •Query the physician if more specific details about the Fontan procedure are available, as codes I27.81, I27.82, and I27.83 provide more precise documentation for different types of Fontan-related circulation
• •This code should be used only when the documentation does not specify which type of Fontan procedure was performed; always review operative reports and cardiology notes for clarification