A loophole which sparked outrage after it was found to allow people to charge the NHS for their health treatment in other European countries has led to a bill of just £700.

It was claimed that many people were fraudulently taking advantage of the European Health Insurance Card (EHIC), which is free for people living in the UK.

Health minister Alistair Burt described the practice as "completely unacceptable" after the Daily Mail sent a Hungarian woman, who has never lived or paid taxes in Britain, to clinics and hospitals in her home country where she was able to use the EHIC which, the paper said, she obtained after visiting the UK for less than a day.

It led the Government to announce that the application process for EHICs would be examined as part of an ongoing crackdown against health tourism.

But it has now been found that just nine cases of fraud have been actually been detected, to the cost of £712.56.

The figures were obtained following a Freedom of Information request made by the Huffington Post UK.

A Department of Health spokesman said: "It is unacceptable that people living outside the UK think they can abuse our NHS.

"The cases which have been identified appear small but we are looking at ways we can tighten up the EHIC process precisely because the current system does not allow us to properly identify applications from those who are not entitled to an EHIC."

The card can be issued to people from within the European Economic Area as well as Swiss nationals.

Applicants must be ''ordinarily resident'' in the UK, meaning that they normally live here apart from temporary or occasional absences.

Under the rules, countries can claim back costs related to EHIC treatments up to 18 months after treatment has been given.