An infusion system including - a medication reservoir having a reservoir portion for accommodating a medication and an outlet port which is in fluid communication with the reservoir portion and is arranged below the reservoir portion at a lower edge of the medication reservoir when the medication reservoir is in an operating position, wherein the outlet port comprises a tube and a bar-code is provided at the medication reservoir , and - an infusion pump (2; 40) comprising a display screen (8a; 64) and a barcode reader which is adapted to read the barcode provided at the medication reservoir , characterized in that - the barcode is provided at a barcode portion of a body (28; 38) facing away from the reservoir portion towards the infusion pump (2; 40) connected to the outlet port of the medication reservoir , - the body (28; 38) is arranged either (I) at the lower edge of the reservoir portion essentially in a horizontal orientation with the barcode being provided at the lower side of the bar-code portion when the medication reservoir is in an operating position or (II) at the outlet port of the medication reservoir and comprises a plate protruding from the outlet port and arranged at an angle of about 90° to the longitudinal direction of the tube of the outlet port , and - the barcode reader is arranged at the infusion pump (2; 40) so that with the infusion pump (2; 40) being connected to the medication reservoir the reading direction of the barcode reader is pointed to the barcode portion of the body (28; 38) and is oriented away from the display screen (8a; 64) essentially in parallel with the plane of the display screen (8a; 64). - a medication reservoir having a reservoir portion for accommodating a medication and an outlet port which is in fluid communication with the reservoir portion and is arranged below the reservoir portion at a lower edge of the medication reservoir when the medication reservoir is in an operating position, wherein the outlet port comprises a tube and a bar-code is provided at the medication reservoir , and - an infusion pump (2; 40) comprising a display screen (8a; 64) and a barcode reader which is adapted to read the barcode provided at the medication reservoir , characterized in that - the barcode is provided at a barcode portion of a body (28; 38) facing away from the reservoir portion towards the infusion pump (2; 40) connected to the outlet port of the medication reservoir , - the body (28; 38) is arranged either (I) at the lower edge of the reservoir portion essentially in a horizontal orientation with the barcode being provided at the lower side of the bar-code portion when the medication reservoir is in an operating position or (II) at the outlet port of the medication reservoir and comprises a plate protruding from the outlet port and arranged at an angle of about 90° to the longitudinal direction of the tube of the outlet port , and - the barcode reader is arranged at the infusion pump (2; 40) so that with the infusion pump (2; 40) being connected to the medication reservoir the reading direction of the barcode reader is pointed to the barcode portion of the body (28; 38) and is oriented away from the display screen (8a; 64) essentially in parallel with the plane of the display screen (8a; 64). <EOS>