An acquaintance used to work for a doctor's office where they used billing software designed to find the best treatment codes to use when preparing a bill. The

An acquaintance used to work for a doctor's office where they used billing software designed to find the best treatment codes to use when preparing a bill. The goal was to select codes for those things that were covered by Medicare or insurance. Every so often someone would call up and ask about some odd item on their bill, and it would end up being some bullshit charge for something they didn't get, or a carefully selected charge that was similar to, but not really, they service that was actually provided. But since most of the time the costs were covered by some other party most people didn't bother inspecting their bills or statements, or bother looking closely at what was charged.