Codabar (EN 798) - Barcode Type¶

Also known as NW-7, Monarch, ABC Codabar, USD-4, Ames Code, and Code 27, this symbology was developed in 1972 by Monarch Marketing Systems for retail purposes. The American Blood Commission adopted Codabar in 1977 as the standard symbology for blood identification. Codabar can encode any length string starting and ending with the letters A-D and containing between these letters the numbers 0-9, dash (-), dollar ($), colon (:), slash (/), full stop (.) or plus (+). No check digit is generated.