What does an NDC number signify?

An NDC number, or National Drug Code, signifies a unique identifier that is used to identify medications in the United States. The NDC is structured as 10 digits, which are divided into three segments: the labeler code, the product code, and the package code.

The first segment, which consists of the labeler code, typically contains 4 to 5 digits and identifies the manufacturer or distributor of the drug. The second segment, known as the product code, has 3 to 4 digits and signifies the specific medication, its strength, and dosage form. Finally, the third segment is the package code, which is 1 or 2 digits long and indicates the type of package the drug is in (e.g., a bottle, box, etc.).

This structured approach allows for clear identification and differentiation of drugs available in the marketplace, thereby enhancing safety and accuracy in medication dispensing. Understanding this format of the NDC number is essential for pharmacy operations, inventory management, and reporting. Given that the NDC consists of 10 digits divided into three segments, this makes the first choice the correct answer.