Inside Nepal’s fake rescue racket

Investigations reveal a vast network of trekking firms, helicopter operators, hospitals and agents staging fake evacuations, fabricating medical records and inflating bills to siphon millions from global insurers.

The Kathmandu Post
I did the Everest base camp trek in late 2015, at that time it was quite common (saw it myself and heard about it) that people would do the trek up but to get down they would fake a leg/back injury or blame altitude sickness and the chopper from Kathmandu would come pick you up, as long as you had the right insurance.

Surely the insurers would quickly become aware of this, I mean, there are people whose job it is to monitor all claims and adjust prices accordingly.

So while it might feel like the insurers were getting fleeced, it was almost certainly the insured who didn't get the copter ride.