Glossary: Private medical insurance
PMI allows you to skip the NHS waiting list and arrange treatment at a time you choose. With most PMI policies, you pay a monthly premium (the older you are, generally the higher premium) and the policy will then pay out, up to specified cover limits and after an agreed excess, for any treatment you might need. Not all conditions are covered by PMI and you get what you pay for: the more cover you want, the higher your premium will be.
This is more usually a feature of car insurance but it can also crop up in contents, mobile phone and pet insurance policies. An excess is the amount of money you have to pay before the insurance company starts paying out. The excess makes up the first part of a claim, so if your excess is £100 and your claim is for £500, you would pay the first £100 and the insurer the remaining £400. Many online insures let you set your own excess, but the lower the excess, the more expensive the premium will be.