Accounts receivable (AR) in healthcare are reimbursements or invoices owed to a hospital, medical practice, or other healthcare organizations by patients or healthcare plans.

The Advance Beneficiary Notice of Noncoverage (ABN) is a form (CMS-R-131) that helps Medicare Fee-for-Service (FFS) patients make informed decisions. ABN informs them about items and services that may not be covered in specific situations.

The allowable charge is the highest amount a health insurance payer will reimburse for a specific medical procedure.

An Alternative Payment Model (APM) is a value-based reimbursement approach designed to promote high-quality, cost-efficient care by offering incentive payments. APMs apply to specific clinical conditions, patient populations, or care episodes, shifting away from traditional fee-for-service models by using bundled payments and care coordination methods.

Ambulatory Payment Classification (APC) is the method the government uses to pay facilities for outpatient services through the Medicare program.