Published on 12, July, 2020
Does the NAS know of any instances where failing to declare ASD has invalidated an insurance policy?
While obviously everybody's situation is different (so ask a medical professional about your personal position) I did, when diagnosed with Aspergers, ask whether I needed to inform the DVLA. The response was a very surprised, "No."
The official guidance is absolutely bloody useless: https://www.gov.uk/asperger-and-driving and https://www.gov.uk/asd-and-driving
So ask your doctor.