Which term refers to the unique identifying number assigned to medications?

The correct term that refers to the unique identifying number assigned to medications is the National Drug Code (NDC). The NDC is a three-segment number that is used to identify drugs in the United States. It provides specific information about the drug, such as the manufacturer, the drug's formulation, and the package size. This coding system helps in maintaining a standardized identification for medications, which is essential for inventory management, billing, and ensuring the proper medication is being dispensed.

The other terms, while important in their respective contexts, do not refer to unique identifiers for medications. For example, a Patient ID is assigned to individual patients to track their medical history and treatments, whereas a Prescriber ID identifies healthcare providers who can prescribe medications. A Lot Number is related to a specific batch of manufactured drugs and is used for tracking recalls and ensuring quality control, but it is not a unique identifier for the drug itself like the NDC is.