Tory MP Richard Bacon has written to the NHS Chief Executive Sir David Nicholson warning that a failure to disclose to the Committee is a "very serious matter".
Bacon, who is a long-standing member of the Committee, is concerned that the Department did not mention the advance payment at a hearing of the Committee on the NPfIT detailed care records systems on 23 May 2011; and the payment was not mentioned in the Department's subsequent memo to the committee.
The Department is sensitive about advance payments to suppliers - successive health ministers and DH officials have claimed that suppliers are not paid until they deliver. Advance payments are made to suppliers such as CSC in advance of delivery.
Bacon's letter in full is here.