The purpose of this legislation is to enhance oversight and transparency regarding the billing codes used in the Medicare program. It aims to ensure that the processes for managing these codes are clear and accountable, ultimately improving the integrity of Medicare billing. Key provisions of the legislation include a requirement for the Inspector General of the Department of Health and Human Services (HHS) to conduct a thorough study of how the Centers for Medicare & Medicaid Services (CMS) handles the addition, modification, and removal of billing codes.