If they cut $1 trillion from going to Medicare Advantage programs upcoding things, the Medicare Advantage people won't go "ah, shucks, they caught us. Guess our years of grifting are over." The Medicare Advantage programs will just pass that on to the consumer, which will cause some people to drop it, causing the prices to go even higher.
Soon we will see a two-tier medical system for old people: Rich old people and not rich old people, and the pressure for medicare to cover more things will grow.
Depends on who programed the AI - and no, it is not Kyoto