NHS Kirklees will cease to exist by April 2013.

Along with every other Primary Care Trust and Strategic Health Authority it will be swept away by the biggest upheaval in the history of the NHS.

Yesterday, the Health and Social Care Bill was put before Parliament clearing the way for groups of GPs to take control of more than £80bn of NHS cash.

For patients it means the new GP bodies or “consortia” will be responsible for delivering your health care, from dealing with coughs and colds to major operations.

NHS Kirklees is working with GPs to create the “pathfinder” consortia which will be among the earliest groups to usher in the change.

By April 2012 all the GP practices will be in the new groups and a new body, the NHS Commissioning Board, will begin authorising them to take over.

The move has prompted allegations that legislation has been rushed through and that it heralds privatisation by stealth as the new organisations search for the best deals from health providers.

At Prime Minister’s Question Time yesterday, David Cameron faced allegations that he had ignored health experts’ warnings that the changes were “potentially disastrous” and that he had “tossed a hand grenade into the NHS.”

Labour leader Ed Miliband said Mr Cameron was breaking promises on health adding: “It’s the same old story – you can’t trust the Tories on the NHS.”

Mr Cameron said: “We have health inequalities in our country that are as bad as Victorian times.

“After a decade of increased money on the NHS we’re not getting it right. That’s the reason for carrying out these reforms.

“If you just stay where you are, which now seems to be the policy of the party opposite, we’re going to lag behind on cancer, we’re going to lag behind on heart disease.

“Let’s reform it and sort it out.”