HIMSS Word of the Day #141: National Drug Code (NDC)
The National Drug Code (NDC) is the FDA’s unique three-segment identifier for drug products, identifying the labeler, product, and package. This post explains how NDCs are structured, why 10- and 11-digit formats cause confusion, what the FDA’s final rule moving to a 12-digit NDC means, how NDCs relate to RxNorm, and how they support barcode medication safety.