Image: schnaars under CC 3.0
As strange as it sounds, health insurance companies won’t automatically cover every surgery you undergo, even if it’s involuntary. That’s why you should do your research prior to entering the operating room.
For example, experimental treatments such as spinal fusion may not be covered. Purely cosmetic plastic surgery is usually not covered, even if a medical problem or accident caused the disfigurement.
In most cases, doctors and hospitals should know whether or not a procedure is covered, and if it needs pre-authorization under your health insurance plan. Just in case, it’s important to confirm that by checking with your insurer.