SYDNEY - Australia's cricket coach Darren Lehmann is being treated for deep vein thrombosis and will miss his team's twenty20 series against India next week, officials said.

Lehmann will be replaced by batting coach Michael Di Venuto for the three matches in Adelaide on Tuesday, Melbourne on Friday and Sydney on Sunday, Cricket Australia said.

"DVT is not an uncommon condition and it is important to diagnose it early so that it can be safely managed," Cricket Australia's chief medical officer John Orchard said in a statement late Saturday. "Darren is stable but he has been advised not to fly in the short term and will therefore require a lay-off before he can return to coaching."

Lehmann was admitted to a Sydney hospital on Saturday night after reporting a swollen calf to medical staff ahead of Australia's one-day international against India on Saturday. Deep vein thrombosis is a condition in which a clot forms in a deep vein, often in a leg.

"Obviously not ideal circumstances, it was a bit of a scare yesterday with Boof (Lehmann) going for a scan and then straight into hospital with DVT," Di Venuto told reporters in Adelaide. "So the good news is he's on the road to recovery. I spoke to him this morning, he's in good spirits and his health is improving."

Lehmann took to Twitter on Sunday afternoon to thank hospital staff, adding that he would have "a few days recover(y) in Sydney and see how all tests comeback".