What are two sources of new charge description master codes?

Two sources of new Charge Description Master (CDM) codes include the American Medical Association (AMA), which updates coding guidelines and introduces new codes regularly, particularly through their Current Procedural Terminology (CPT) coding system. Another source is the Centers for Medicare & Medicaid Services (CMS), which may develop and implement new codes to reflect changes in healthcare practices, reimbursement policies, or to address emerging medical technologies and procedures.