The evaluation of cancer diagnosis-related groups (DRGs) revealed significant payment disparities between the actual costs of hospitalization and the hospital reimbursement amount.

The use of a new DRG price calculation model is proposed that consists of a relative weighting factor and a base price, based on a real cost calculation process on an annual basis.

The launch of the Greek DRG system triggered the need for further research in order for the DRG model to fulfill its promise.