Medicare Beneficiary Notices Initiative (BNI) Medicare Outpatient Observation Notice (MOON
Guidance for Hospitals and CAHs on required MOON to be provided to Medicare beneficiaries.
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: September 25, 2020
Hospitals and CAHs are required to provide a MOON to Medicare beneficiaries (including Medicare Advantage health plan enrollees) informing them that they are outpatients receiving observation services and are not inpatients of a hospital or critical access hospital (CAH).
Full instructions are available in Section 400, of Chapter 30 of the CMS Claims Processing Manual, available at: /Regulations-and-Guidance/Guidance/Manuals/Downloads/clm104c30.pdf (PDF)
Frequently asked questions ("MOON FAQs") are also available under "Downloads" below.
The notice, in English and Spanish, is available below under “Downloads.”
Questions?
Questions regarding the MOON can be submitted at: https://appeals.lmi.org
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DISCLAIMER: The contents of this database lack the force and effect of law, except as authorized by law (including Medicare Advantage Rate Announcements and Advance Notices) or as specifically incorporated into a contract. The Department may not cite, use, or rely on any guidance that is not posted on the guidance repository, except to establish historical facts.