Travel Insurance

I would like some views in finding travel insurance as I have real issues with this.  Am I wrong in thinking that Autism/Asperger's is a developmental condition - something that you were born with and therefore not a medical condition?  I have tried to get information from the Government's disability rights issues department but their response was that there was no definitive answer!  I do not feel you should have to declare ASD unless you have accompanying health issues, but don't want to risk not being covered should there be an accident.  I have found that the minute you mention ASD the price goes up massively.  My daughter is not ill she just has Asperger's!  I have found within  the travel insurance industry that there is no consistency.  At one end some do not even need the information to be able to give you a quote and at the other end the price can double once you mention it.  I queried one travel insurance company recently who emailed back informing me that Autism is a recognisable medical condition.  Any views from parents out there would be most welcome - and if the NAS would like to add their comment too I would be pleased to hear it.

Thank you