Earlier quoted context omitted.
That's fine, in Italy you get a visit from the "Medico Fiscale". It's confrontational for sure, so you just go to your GP, get a certificate with the prescribed days of rest and attach that to your sick leave notification. Easy
Next door in Austria I've seen employment contracts (from local Mittlestand family owned companies in the automotive sector) where it was specified that "in case of sick leave, the employee agrees to health checks by the company's own GP at the company's expense, even if you already have been written off sick by your own GP." I've never been more disgusted. Then again, I've also read in the news here of employers hir…
In Dutch employment contracts this doesn't even have to be specified, this is a general condition applying to all employment contracts. Most companies won't actually send a doctor over until you've been sick some time but they always have the right if you want to continue to receive sick pay.