Composite Code is a two-dimensional barcode that combines a linear barcode (such as Code 128 or EAN/UPC) with an additional two-dimensional Composite Component, containing extra information. Commonly used in healthcare, retail, and other industries for extensive data encoding, it includes formats like CC-A, CC-B, and CC-C, each offering different capacities and error correction levels. Composite Code is often referred to as GS1 Composite Symbol or EAN/UCC Composite Code, based on the specific application.