AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2025 Issue 4; New/Revised ICD-10-CM Codes

Fontan Circulation

Subcategory, I27.84, Fontan-related circulation, was created to capture Fontan-related circulation and related complications. The new codes in this subcategory are as follows:I27.840 Fontan-associated liver disease [FALD] I27.841 Fontan-associated lymphatic dysfunction  I27.848 Other Fontan-associated condition I27.849 Fontan-related circulation, unspecified The Fontan operation (Fontan circulation) is a reconstructive procedure that improves circulation in pediatric patients with single ventricle congenital heart disease, tricuspid atresia, hypoplastic left heart syndrome, and double outlet right ventricle. While there are 50,000 to 70,000 individuals in the United States today who have survived because of the Fontan procedure, the &ldquo...

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