WHO has released a report on DRGs that is useful as introduction to the concept and the design of payment systems.
The document consists of four parts:
Part 1 outlines definitions, terminology and the main conceptual aspects related to CBG and DRG.
Part 2 covers the assessment phase and highlights questions and issues that policy-makers should consider before taking the decision to introduce a CBG system.
Part 3 delves into the preparation phase by exploring policy and design aspects once a country has decided to introduce a CBG system.
Part 4 is concerned with the implementation phase and discusses implementation questions, requirements for system adjustments and the need for monitoring and revision in order to identify and address unintended impacts of a CBG system.