International Classification of Diseases: CMS’s Efforts to Prepare for the New Version of the Disease and Procedure Codes, GAO-15-255: Published: Jan 28, 2015. Publicly Released: Feb 6, 2015: “The Centers for Medicare & Medicaid Services (CMS), within the Department of Health and Human Services (HHS), has undertaken a number of efforts to prepare for the October 1, 2015, transition to the 10th revision of the International Classification of Diseases (ICD-10) codes, which are used for documenting patient medical diagnoses and inpatient medical procedures. CMS has developed educational materials, such as checklists and timelines, for entities covered by the Health Insurance Portability and Accountability Act of 1996 (HIPAA)—that is, health care providers, clearinghouses, and health plans, which GAO refers to as “payers”—and their support vendors. In addition, CMS has conducted outreach to prepare covered entities for the transition by, for example, holding in-person training for small physician practices in some states. CMS officials have also monitored covered entity and vendor readiness through stakeholder collaboration meetings, focus group testing, and review of surveys conducted by the health care industry. CMS also reported modifying its Medicare systems and policies. For example, CMS documentation states that the agency completed all ICD-10-related changes to its Medicare fee-for-service (FFS) claims processing systems, which reflect the results of internal testing. At this time, it is not known what, if any, changes might be necessary based upon the agency’s ongoing external testing activities. CMS has also provided technical assistance to Medicaid agencies and monitored their readiness for the transition. For example, all Medicaid agencies reported that they would be able to perform all of the activities that CMS has identified as critical by the transition deadline; however, as of November 2014, not all agencies have started to test their systems’ abilities to accept and adjudicate claims containing ICD-10 codes.”