A bill only invoice is a special purpose invoice that is used for services or items procured in specific, unconventional situations, i.e. not through the traditional procurement process. For instance, a vendor may provide a hospital with a specialized implant or equipment and then its representative may work together with the surgeon/hospital staff to set it up. The vendor may have also purchased the implant from a third-party supplier. In such a situation, this vendor will provide the hospital with a bill only invoice. Services and goods acquired this way still pass the normal approval processes. Just like a regular invoice, a bill only invoice contains an itemized list of goods/services provided, their rates, pricing, total, and other information relevant to the specific sale.