Which code is used to identify the manufacturer and specific product of a drug?

The National Drug Code (NDC) is the correct identifier for a manufacturer and specific product of a drug. The NDC is a unique numerical identifier that provides specific information about the drug, including the manufacturer, the drug formulation, the dosage form, and the package size. It typically consists of three segments: the first segment identifies the manufacturer; the second segment identifies the specific drug product; and the third segment identifies the packaging.

Unlike the NDC code, the UPC (Universal Product Code) is generally used in retail settings to identify products but is not specific to pharmaceuticals. The SKU (Stock Keeping Unit) is a product identifier used by retailers to track inventory and sales within their own systems, which does not provide the specific drug information required in pharmacy settings. The EIN (Employer Identification Number) is a tax identification number for businesses and does not relate to drug identification.

Thus, the NDC code serves as the essential coding system for identifying the manufacturer and specific product of a drug, making it the correct answer in this context.