PDPM is an acronym for Patient-Driven Payment Model. It is a new way of paying for Medicare Part A and Part B services. The PDPM Checklist is important because it helps to ensure that Medicare patients are billed correctly under the new Patient-Driven Payment Model. The checklist includes specific instructions for billing, including which services are covered under PDPM and how to code them. The checklist can help facilities to ensure that they are billing correctly and getting paid for the services they provide.