New ICD-10 Codes Recognize Fontan-Associated Conditions, Advancing Care and Coverage for Rare Congenital Heart Disease Community

Mezzion Pharmaceuticals, a global leader in the development of therapies for patients with single ventricle heart disease, announces a transformative milestone for the Fontan community: the introduction of new, dedicated ICD-10 diagnosis codes for Fontan-associated conditions in the U.S. Centers for Medicare & Medicaid Services (CMS) FY 2026 IPPS Proposed Rule.