The Queensland coroner is expected to order an inquest into the death of an Iranian asylum seeker.

Lawyers for the family of a dead asylum seeker expect the Queensland coroner to declare the matter a death in custody and order a mandatory inquest.

Hamid Kehazaei, who had been detained at the Manus Island detention centre, had his life support turned off at a Brisbane hospital last week.

The Iranian had been airlifted from Papua New Guinea after developing severe septicaemia from an infected cut foot.

Solicitor Ruth Hudson, who is representing Mr Kehazaei’s family in Iran, says an announcement from the coroner is expected shortly.

“We’ll be looking at whether the initial diagnosis was adequate, whether he received appropriate and timely treatment and was transferred quickly as he should have been,” she told ABC radio on Monday.

Mr Kehazaei’s treatment is the subject of a review by the immigration department’s chief medical officer.

Immigration Minister Scott Morrison insists Mr Kehazaei was provided with “outstanding” medical care.

Ms Hudson said the family want justice for their son, flagging they may seek compensation.

She said the focus of the family of Mr Kehazaei, 24, was on whether he received proper care.

“Documentation in respect of what happened prior to Hamid coming to the Mater hospital in Brisbane is yet to be forthcoming,” she said.

Mr Morrison described Mr Kehazaei’s death as a very sad incident, noting about 1200 Australians die each year of septicaemia.

He also noted incidents of septicaemia were much higher in tropical areas.

“We need to look calmly at this,” Mr Morrison told Macquarie Radio.