Statistics skewed by ER directive?

An anecdote I was told the other day is very troubling.

A cyclist crashed & was taken to hospital. A nurse made notes. The
cyclist asked why the box was ticked that he'd been wearing a helmet.
The nurse replied they'd been instructed to assume a helmet was worn and
had been smashed if a cyclist presented without a helmet and had no head
injury.

Has this been observed in countries other than Australia?

--
JS