The ABN is a notice given to beneficiaries in Original Medicare to inform them that Medicare is not likely to provide coverage in a specific case. “Notifiers” include physicians, providers (including institutional providers like outpatient hospitals), practitioners and suppliers paid under Part B (including independent laboratories), as well as hospice providers and religious non-medical health care institutions (RNHCIs) paid exclusively under Part A.
Medicare inpatient hospitals and skilled nursing facilities (SNFs) use other approved notices for Part A items and services when notice is required; however, these facilities must use the ABN for Part B items and services.