CMS is extending the comment period on its May 4, 2017 advance notice of proposed rulemaking (ANPRM) discussing plans to revise the basis for the Medicare skilled nursing facility (SNF) prospective payment system (PPS).  As previously reported, the ANPRM set forth the outline of CMS’s plan to replace the current RUG-IV case-mix classification methodology with the Resident Classification System, Version I (RCS-I), as early as FY 2019.  CMS is extending the comment period from June 26, 2017 to August 25, 2017 in response to requests from national industry organizations for additional time to analyze this potentially far-reaching proposal.