CMS is not requiring the ordering provider to rewrite the original order with the appropriate ICD-10 code for lab, radiology services, or any other services after ICD-10 implementation on October 1, 2015, including Durable Medical Equipment, Prosthetics, Orthotics, and Supplies (DMEPOS).
A  cost-of-living index is a theoretical price index that measures relative cost of living over time or regions. It is an index that measures differences in the price of goods and services, and allows for substitutions with other items as prices vary.
The United States Consumer Price Index (CPI) is a price index that is based on the idea of a cost-of-living index. The U.S. Department of Labor's Bureau of Labor Statistics (BLS) explains the difference: The CPI frequently is called a cost-of-living index, but it differs in important ways from a complete cost-of-living measure.