CMS has released the preliminary 2017 Medicare clinical laboratory fee schedule (CLFS) payment determinations for new and reconsidered test codes, including determinations regarding whether CMS will use crosswalking or gapfilling to establish payment rates for specific tests.  CMS will accept public comments on these preliminary determinations through October 2016.  Also, CMS has released the 2016 CLFS Gapfill Final Determinations; reconsideration requests will be accepted until October 31, 2016.