Medicare Summary Notice

The Medicare Summary Notice (MSN) is used to notify beneficiaries of decisions on claims for Medicare benefits.

MSN Messages

Messages are printed on the MSN to explain both general and claims-specific information to beneficiaries.
Contractors responsible for printing MSNs are notified of new or revised MSN messages through Technical Direction Letters or Change Requests.
To view the current (printable) list of MSN messages, see below under "Downloads."