Medicare Summary Notices (MSNs)

12.5 - Medicare Summary Notices (MSNs) (Rev.3848, Issued: 08- 25-17, Effective: 09-26-17, Implementation: 09- 26-17) (When denying claims for counseling to prevent tobacco use services that were performed prior to the effective date of coverage, contractors shall use an appropriate MSN, such as, MSN 21.11, “This service was not covered by Medicare at the time you received it.” When denying claims for counseling services on the basis that the coverage criteria were not met, use an appropriate MSN, such as MSN 21.21, “This service was denied because Medicare only covers this service under certain circumstances.” When denying claims for counseling services that have dates of service exceeding the maximum benefit allowed, use an appropriate MSN, such as MSN 17.8, “Payment is denied because the maximum benefit allowance has been reached.”