On October 1, 2014, the ICD-9 code sets used to report medical diagnoses and inpatient procedures will be replaced by ICD-10 code sets. To help you prepare for this transition, CMS announces a national testing week for current direct submitters (providers and clearinghouses) from March 3 through 7, 2014.


This testing week will give trading partners access to the Medicare Administrative Contractor’s (MACs) and Common Electronic Data Interchange (CEDI) for testing with real-time help desk support. The event will be conducted virtually. Registration is required.


What you can expect during testing:

  • Test claims with ICD-10      codes must be submitted with current dates of service (i.e. October 1,      2013 through March 3, 2014), since testing does not support future dated      claims.
  • Test claims will receive      the 277CA or 999 acknowledgement as appropriate, to confirm that the claim      was accepted or rejected in the system.
  • Testing will not confirm      claim payment or produce remittance advice.
  • MACs and CEDI will be      staffed to handle increased call volume during this week.


More information is available in MLN Matters® Article MM8465, “ICD-10 Testing with Providers through the Common Edits and Enhancements Module (CEM) and Common Electronic Data Interchange (CEDI)”


Registration Information:

Registration information will be posted soon on your MAC website.