Where do I find the barcode? April 27, 2022 15:28 Updated The barcode is located on the outside of the kit packaging. It is also located on the blood collection device. Related articles Where do I find the barcode? What should I do if I sent my kit to the lab before registering it? How does the Pixel by Labcorp® COVID-19 process work? How soon can I expect to receive my kit? How do I reset my password?