Medicare AdvantageAdministrativeMedium impact
Updated MOON Notice and Requirement for Medicare Advantage
BlueCross BlueShield of South Carolina·SC · Emergency Medicine, Critical Care·Medicare Advantage
Effective date
Feb 24, 2026
We identified it
Jun 20, 2026
Summary
CMS updated the Medicare Outpatient Observation Notice (MOON) that must be provided to Medicare Advantage beneficiaries receiving outpatient observation services. The revised notice improves readability and is available in English and Spanish, valid through February 28, 2029.
Action Required
Immediately: Review the updated MOON notice on the CMS website to ensure compliance. Hospital staff and providers must use the new English and Spanish versions when informing Medicare Advantage patients that they are outpatients receiving observation services, not admitted as inpatients. Replace any old MOON notice forms with the updated version.