CMS will allow acknowledgement testing at any time before the Oct. 1, 2015, ICD-10 deadline, but it instructed Medicare administrative contractors (MACs) to promote it during three specific weeks:
  • Nov. 17-21, 2014
  • March 2-6, 2015
  • June 1-5, 2015
“The ICD-10 testing weeks have been created to generate awareness and interest and to instill confidence in the provider community that CMS and the MACs are ready and prepared for the ICD-10 implementation,” CMS stated in IOM 100-20, Change Request 8858.
 
CMS has not issued more information on the end-to-end testing it alluded after announcing the new start date for ICD-10.