Proxy Directive
A legal document assigning the health-care decisions of an individual to another in the event the individual is unable to make the decisions for themselves.
Investopedia Commentary
If you as a capable individual wanted to assign your children the right to make all health-care decisions should you become incapacitated, you would need to create a proxy directive. The proxy (the assigned decision-maker) is only in charge of making decisions related to your health. They cannot access your money and are not bound to pay your bills.
Related Links
Three Documents You Shouldn't Do Without
See also: Living Will, Power of Attorney, Will