Abstract
The current diagnostic and inpatient procedure coding system, International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM), has been used in the United States since 1979. The coding system has become insufficient because of many medical and technological improvements that have occurred since then. On September 20, 2013, the US health care system will assign the final ICD-9-CM code. The new system, International Classification of Diseases, 10th Revision, Clinical Modification, Procedure Classification System, will become effective on October 1, 2013, including more codes and other differences. Although October 2013 is the implementation deadline, facilities should start preparing for the change at this time. A thorough understanding of the new official guidelines is key to a successful transition from ICD-9-CM to International Classification of Diseases, 10th Revision, Clinical Modification, Procedure Classification System. As we are embracing 1 of the greatest health care changes in 30 years, specific considerations are offered for initiating implementation and ensuring a smooth transition.