A circular bar-code for encoding information regarding at least one of a body or a content of a body is provided. The bar-code encircles a central point and is configured such that the information encoded by the bar-code is readable along a closed line encircling the central point. The circular bar-code may be used for encoding a drug container, wherein the bar-code is located at the front face of the drug container such that the information encoded by the bar-code is readable from a front view to the drug container. The circular bar-code may be applied to an element configured to be attached to the front end of the drug container.
