The 67-year-old disappeared on the Greek island of Symi last week after setting off for a walk while on holiday with his wife.
He was found four days later, near Agia Marina, north of the village of Pedi and opposite the northeast beach of Agios Nikolaos where Mosley set out for his walk.
Further tests to determine his exact cause of death could take months.
The coroner has ruled out foul play.