The document provides an overview of bundled payments and the Comprehensive Care for Joint Replacement (CJR) model. The CJR model holds hospitals accountable for the quality and costs of lower extremity joint replacements from admission through 90 days post-discharge. It aims to reduce costs while preserving or enhancing quality through care coordination among hospitals, physicians, and post-acute providers. Hospitals must meet quality standards to earn reconciliation payments if costs are below the target price. The model tests bundled payments and quality measurement across different geographic areas.