National Drug Code (NDC) codes exist in one of the following groupings of digits into segments: 4-4-2, 5-3-2, 5-4-1, 6-3-2, or 6-4-1 with certain structure rules that apply depending on the length of certain segments while keeping in mind that based on new FDA validation procedures an NDC code assigned to one product is unique and cannot be later reassigned to a different product.
National Drug Code (NDC) codes exist in one of the following groupings of digits into segments: 4-4-2, 5-3-2, 5-4-1, 6-3-2, or 6-4-1 with certain structure rules that apply depending on the length of certain segments while keeping in mind that based on new FDA validation procedures an NDC code assigned to one product is unique and cannot be later reassigned to a different product.