Number: 14390 
Release Date: February 20, 2026
Effective Date: April 1, 2026 
Implementation Date: April 6, 2026
Transmittal Number: R13636CP

CR 14390 provides instructions for the Medicare contractors to download, test, and implement the National Fee Schedule for Vaccine Administration Quarterly Update (VAXA) for April 2026. The rates from the VAXA file will be applied to preventive service and monoclonal antibody claims beginning April 1, 2026.

Make sure your billing staff knows about coding updates for TYENNE® (tocilizumab-aazg) for intravenous administration in hospitalized adults with COVID-19.

View the complete CMS Medicare Learning Network (MLN) Matters (MM)14390.