"Mr Coyle has highlighted tens of thousands of people who were denied benefits under the Department for Work and Pensions (DWP) internal appeals system".
Fewer than a fifth of people who went through a so-called ‘Mandatory Reconsideration’ (MR) got PIP back.
That compares to a success rate of almost two-thirds of people who pressed on to an independent tribunal.
Yet all claimants are forced to go through the MR process before they can reach a tribunal.
Labour MP Neil Coyle, who has branded the MR system a “complete fraud”, estimates MRs had wrongly denied benefits to around 83,000 people on PIP and sickness benefit ESA.
There was also humiliation for the government after it dropped a "target" for 80% of internal appeals to fail.
Mr Coyle asked in the House of Commons: "When will the DWP be contacting the 83,000 disabled people also potentially wrongly denied help under this equally dodgy practice?”
Ms McVey replied: "We will do everything systematically and coherently, and anybody who is affected by any incorrect decision we will get to as soon as possible.”
Mr Coyle has now written to the Tory welfare chief urging her to find and contact the 83,000 people he refers to.
He wrote: "I hope you will stick to your answer and ensure the department also now identifies and contacts the disabled people directly affected.
"I would be very grateful if you and officials would meet with disabled people's organisations to outline how best to identify the 83,000 disabled people and ensure no further delay in providing their much-needed support."
You can read the full article on the Mirror website