What is the maximum length for the package code segment in the NDC?

The package code segment in the National Drug Code (NDC) is indeed 1 or 2 digits long. This specific segment is designed to identify the package size or type of the drug product. The NDC is divided into three segments: the labeler code, the product code, and the package code.

Although the labeler code usually consists of 4 to 5 digits and the product code consists of 3 to 4 digits, the package code's concise range of 1 or 2 digits is crucial for maintaining organization within the NDC system, allowing for efficient identification and categorization of various packaging options for pharmaceutical products.