No it’s not coated. The VeriChip really did need something to stop migration because they put it into the muscle, which is full of independent moving and gliding and intermittently contracting bundles of muscle tissue. Subdermal human implants in the fascia don’t tend to move around much in most people after encapsulation.
The xBT has an anti-migration cap because it’s designed for horses… but it will soon be discontinued for another way cooler product coming down the pipe…