The rule change makes one technical change as explained; clarifies version of APCD Data Submittal Guide, as corrected on 03/15/2018, that should be used by all APCD submitters for data submissions required on or after 03/01/2018. Original description in DSG (APCD Element MC055) Professional Procedure Code -- Procedure code for professional services. HCPCS, including CPT codes of the American Medical Association, are valid entries. Corrected description in DSG HCPCS/CPT Procedure Code -- Healthcare Common Procedural Coding System (HCPCS). This includes the CPT codes maintained by the American Medical Association.