CMS has announced that it will NOT enforce 5010 non-compliance until March 31, 2012. This is a slight reprieve, but all HIPAA covered entities should be actively in testing mode, and continually “working with their trading partners to become compliant with the new HIPAA standards, and to determine their readiness to accept the new standards as of January 1, 2012.”
For the full text of the CMS statement, please see: https://www.cms.gov/ICD10/Downloads/CMSStatement5010EnforcementDiscretion111711.pdf