Possum1 is correct.
My view is that the UK PMD system is currently better than US BasicMed. UK PMD is, in essence, a declaration that the pilot reasonably believes that the pilot meets the medical requirements for a Group 1 (Car) licence. The pilot doesn't even have to be the holder of that licence.
We're so "stupid" as to not require at least a check-up by a doctor every year or five to hold a driver's licence in Australia. We all need to try harder not to pretend that being an ordinary pilot is so special as to require 'special' medical requirements. There are always bureaucrats standing by to help in that regard.