TORONTO -- A civil trial is set to begin this week for two doctors accused of ignoring an elderly man's wishes to stay alive and allegedly imposing a "do not resuscitate" order without consulting him or his substitute decision-maker.

The $2.2-million suit against Dr. Donald Livingston and Dr. Martin Chapman accuses the physicians of negligence or malpractice in the death of Second World War veteran Douglas DeGuerre.

The suit, filed by DeGuerre's daughter Joy Wawrzyniak, alleges the doctors overruled the family's decision to keep seeking treatment for DeGuerre's many serious illnesses.

It alleges the doctors changed DeGuerre's status from "full code" -- meaning make all reasonable efforts to keep the patient alive -- to "do not resuscitate," without asking DeGuerre or consulting Wawrzyniak, who was tasked with making decisions on his behalf.

Lawyers representing Livingston and Chapman did not comment on the upcoming civil trial, which is set to start Monday.

Wawrzyniak's attorneys said the case is significant as it can warn physicians they have no right to "play God."

"We are taking this case to trial to make it clear to physicians that they are required to obtain express consent before writing a DNR order," lawyer Barry Swadron said in a statement.

The unproven statements of claim and defence largely agree on DeGuerre's medical history in the months before his death.

Both parties said the 88-year-old had several serious conditions in 2008, including diabetes, kidney failure and gangrene.

He signed a document in November 2007 appointing his daughter as the person to make medical decisions on his behalf should he be unable to do so.

At the same time, both parties agree DeGuerre signed a document saying he did not wish to be resuscitated if death seemed imminent.

Wawrzyniak's statement of claim asserts, however, that DeGuerre changed his mind in the following months and repeatedly declared his desire to have a full code status.