How does a person lose medicaid eligibility in TN?

Answer 1

As far as I know, only death would cause one to lose Medicare eligibility.
Concerning Medicaid, one would become ineligible if, among other things, one moved out of the State or one's income and/or assets increased to a level above the maximum(s).

Answer 2

1) death; 2) moving out of state; 3) for a child, attaining age of majority; 4) increase in income and/or assets in excess of the standards (this can happen in the event of a marriage)