Payers will begin to receive and process version 02/12 on January 6, 2014. There will be a dual period from January 6 through March 31 in which both the old version, 08/05, and the new version will be accepted. After April 1, only version 02/12 will be able to be processed.
This dual period allows for payers to gradually adjust to processing the new changes on the 02/12 form. It is essential for claims processing software to be able to process both versions of the form during these few months.