Health insurance is an insurance that covers the whole or a part of the risk of a person incurring medical expenses, spreading the risk over numerous persons.
A Paris court ruled that his death was an industrial accident and that The Family was entitled to compensation.
But under French law an employer is responsible for any accident occurring during a Business Trip , judges said.
The Man , named as Xavier X, was working as an engineer for TSO, a railway services company based near Paris.
The provider defended its position by insisting that sexual activity was normal, "like taking a shower or a meal".
In its ruling, the Paris appeals court upheld this view.
An employee on a Business Trip is entitled to social protection "over the whole time of his mission" and regardless of the circumstances, it said.