Catastrophic coverage 

In health insurance, it refers to a health plan with such a high deductible (the amount that you pay out of pocket before the plan pays anything) that it will only be likely to cover you in the case of a serious health catastrophe such as heart surgery, cancer, or an accident requiring multiple procedures and surgery.

Catastrophic coverage is less expensive than other plans, but you get what you pay for.

Catastrophic coverage by Simmaniac November 9, 2018