The process is like any other process for CMS. It has to go through rule making. Rule making begins with a proposed rule, stating the objectives and time lines (among other things) being proposed. There is then a comment period (usually about 30 days). Then CMS will review ALL the comments, and at that time they will issue a final rule. This process can takes several months. Rule making for routine changes to ICD-9 now begins as soon as the final rule is published each year (three months prior to the implementation date of October 1, each year). Proposed rules for coding usually come about 180 days prior to October 1, and the final rule comes out 90 days prior to October 1. As the final rule for ICD-10, that came out in January of 2009, didn't fall to the October 1, date, it most likely won't follow that date process now. However, it most likely will have the same process of proposed rule, comment period, and then final rule with CMS's decision.
This line in the article tells you "We are committing to work with the provider community to reexamine the pace at which HHS and the nation implement these important improvements to our health care system.” They are looking at possible delay, not a done deal yet. All changes have to go through rule making procedures. CMS can't just decide one day to change the date and say its a done deal.
Whatever CMS decides, the proposed rule will take time to create. WEDI has a survey in process for CMS regarding preparedness of entities at this point. After they review the results of that survey, and any other information they have, they will publish the proposed rule. As stated above, there will be a comment period, and then the final rule will be published. Regardless, we have at minimum, a several-month wait to determine if there will be a delay or possibly just a grace period.
As CMS stated, in the meantime all entities should continue their training and other tasks as if I-10 will still be implemented on October 1, 2013.