The invention relates to an infusion system including a medication reservoir (16), said medication reservoir (16) comprising a reservoir portion (16b) for accommodating a medication, and an outlet port (26) which is in fluid communication with the reservoir portion (16b) and is arranged below the reservoir portion (16b) at a lower edge (16a) of the medication reservoir (16) when the medication reservoir (16) is in an operating position, wherein a body (38) is arranged at the lower edge (16a) of the reservoir portion (16b) and a barcode (24) is provided at a barcode portion of the body (38) facing away from the reservoir portion (16b) towards an infusion pump to be connected to the outlet port (26).