The Prime Minister has denied making a "secret deal" with Jacqui Lambie in order to repeal the controversial medevac bill.

Earlier today Senator Lambie tearfully announced she would support the repeal.

The independent confirmed her support after a proposal she said she "can't discuss publicly because of national security concerns".

"We've worked to an outcome I believe we both want, which is an outcome that our borders are secure, the boats have stopped and sick people aren't dying waiting for treatment," she said.

Jacqui Lambie speaks in the Senate with Mathias Cormann. (AAP)

"I can't let the boats start back up and I can't let refugees die, whether it's sinking into the ocean or waiting for a doctor and I am voting to make sure that neither of these things happen."

Her statement is in direct contradiction to the Prime Minister's remarks.

Speaking to reporters in Canberra, Scott Morrison denied the government had made any concessions to the Tasmanian crossbencher.

"It means she is happy with the government's policies and the bill that was presented to the Senate, and she voted for it," Mr Morrison said this afternoon.

He steered his answer to a criticism of Labor.

Jacqui Lambie said she made a deal to pass the medevac repeal. (AAP)

"(Labor) sought to prise open the door on Australia's border protection regime because they've never believed deep down in the border protection policies that the government has put in place.

When speaking about the medevac bill, Senator Lambie tore into media coverage of the policy.

"The usual suspects in the newspapers can make a big song and dance about someone coming because they've got a cold or whatever it is they're talking about.

"My rule throughout this whole process has been that if it's on the front page of the newspaper and it's anything to do with medevac, it's probably not worth reading.

"Before medevac, someone presented to a nurse with the flu and 13 days later, he was dead."

Penny Wong said the Coalition made a 'secret deal' with Jacqui Lambie to repeal medevac. (AAP)

The vote passed by a narrow 37 to 35 votes.

Labor's Senate leader Penny Wong lambasted the government for making its "secret deal" with Senator Lambie.

"At the moment we have Cabinet ministers in here like lemmings to vote for a bill on a deal you haven't seen," Senator Wong said.

"Members of the Cabinet of Australia are coming in to vote on a deal that's been done with Senator Jacqui Lambie, that they don't even know about."

But Finance Minister Mathias Cormann denied making a secret deal.

"The Labor Party thinks that whenever we are able to persuade anyone, the Labor Party just assumes there must be some secret deal," he said.

"The Australian people understand very well what we have done in order to clean up the mess that Labor left behind at our borders.

"The Australian people know perfectly well how we are ensuring that the boats don't start coming again."

Pauline Hanson and Jacqui Lambie speak during the medevac debate. (Alex Ellinghausen/The Sydney Morning Herald)

The medevac bill allowed asylum seekers being held in offshore detention to be moved to Australia for medical treatment if a doctor deems it appropriate.

Nearly 180 asylum seekers were brought into Australia under the medevac legislation .

But only 19 of those were hospitalised upon arrival.

The bill, which passed against the wishes of the government in February, was an embarrassing defeat for Scott Morrison .

But its repeal marked a success for the government in the final days of Parliament for the year.

As a consequence, the Home Affairs Minister will be able to stop sick asylum seekers from getting the treatment doctors say they need.

The repeal has been criticised by global health charity Médecins Sans Frontiers (Doctors Without Borders).

"To now deny medical professionals from taking decisions in patients' best interests – and to effectively hand that power back to unqualified officials – entrenches dangerous precedents set in the last years and puts those most sick and vulnerable at risk," MSF Australia executive director Paul McPhun said.