GP letter/report

Hello Anneb,
There are no hard ruling on this one. The letter you have reflects the issues your son has now, clearly the further you move away from now the greater the opportunity for someone to say that your son's condition may have changed since the letter was written. I have submitted evidence which was 4 years old not had it challenged, it was the best we had. Very often when a consultant gives a diagnosis that is a one off event, they don't keep doing it every few years just to keep the DWP happy.
The older your son is, the more likely you are to be able to argue that his condition is stable and not improving (or getting worse).
I guess what I am saying is that if you can get a more up to date letter than that would be best - but don't throw away the old one, it still carries weight.
Wishing you success at your next reviews,
Catherine