standardized numerical identifier definition

standardized numerical identifier means a set of numbers or characters used to uniquely identify each package or homoge- nous case that is composed of the National Drug Code that corresponds to the specific product (including the particular package configuration) combined with a unique alphanumeric serial number of up to 20 characters.
standardized numerical identifier means a set of numbers or characters used to uniquely identify each prescription drug that is composed of the National Drug Code for that drug and a unique serial number.