The 42-year-old was found dead in his hotel room in Paris on Sunday prior to Munster's European Rugby Champions Cup clash against Racing 92.
An autopsy has revealed that Foley passed away as a result of a build-up of fluid on the lungs, which led to respiratory failure, and further toxicological tests are due to be carried out.
According to www.rugby365.fr, the former Ireland international "had a heart rhythm disorder that caused an acute pulmonary edema of the lungs".
Foley, who took over as Munster head coach in 2014, will be laid to rest in County Clare on Friday.
A statement on Munster's official website read: "Anthony's family have confirmed that his remains will be flown home to Shannon Airport [on Wednesday], from where they will be brought to his family home in Killaloe, Co Clare.
"They will lie in repose at St Flannan's Church, Killaloe from 1pm to 8.30pm sharp on Thursday evening. People intending on paying their respects to Anthony are asked to attend early. House afterwards is private.
"Funeral Mass will take place at 12 midday on Friday at St Flannan's Church, with Church reserved for family and friends only. A special area will be set aside to facilitate media outside the Church, near speakers. Burial afterwards will be at Relig Nua Cemetery, Killaloe. Family flowers only."
Foley won 62 caps for Ireland during his playing career.