Dettori temporarily suspended in France
(Healy Racing Photos)
The 41-year-old made his representation via conference call at the Medical Committee of the French racing authority, France Galop, in Paris on Tuesday.
However, the file has been passed on to the French stewards, who will pass judgement within a fortnight.
A statement from France Galop read: "Following yesterday's examination of the file and after having duly notified the jockey Lanfranco Dettori of its decision, the Medical Committee has temporarily suspended the said jockey from riding in races in France, based on medical grounds.
"According to article 143 of the Rules of Racing, the Medical Committee's report has been passed on to the France Galop stewards. The France Galop stewards will be studying the file within the next fortnight before deciding what action will be taken in accordance with the Rules of Racing."
Dettori had four rides at the Prix de l'Arc de Triomphe trials meeting on September 16, after which the sample was returned.
He rode Joshua Tree to finish third in the Prix Foy, Sarah Lynx who trailed home last in the Prix Vermeille, Farhh who was beaten a head in the Prix du Moulin and Willing Foe, who came in third in the Prix Gladiateur.
Dettori made the headlines last month when his 18-year association with powerful owners Godolphin came to an end, with the three-times champion jockey planning to ride as a freelance in 2013.
Market Rasen's fixture this afternoon has survived an early-morning precautionary inspection.