The present invention refers to a system for placing an intravenous catheter, specifically a closed system for placing an intravenous catheter which prevents exposure by medical personnel to the patients bodily fluids during the placement of the catheter and with a retractable needle cannula in a manual billows mechanism for preventing its reuse, accidental puncture wounds and assuring safe disposal. This CPIVCSS has the advantages of (a) preventing medical personnel from being exposed to the contaminated bodily fluids or blood during the placing of the catheter in the patient (b) reducing the possibility of multiple punctures and (c) having an easily usable safety system. The Closed Peripheral Intravenous Catheter with Safety System includes two systems, one the piercing and safety system made up of: (2) piercing cannula, (10) mounting body, (11) affixing body, (9) flexible billows tube, (8) flashback chamber and filter and (13) filter paper and the closed peripheral intravenous catheter made up of: (3) the catheter cube or hub, (1) the catheter tube, (12) the hub seal, (4) the affixing wings, (5) the flow tube, (6) flow safety valve and (7) the multi-piercing connector.