I posted a question about this and have found out the answer at the following location:
FROM first4adoption.org.uk, funded by Dept of Education, independent of LA. On the website, under top tab - being an adoptive parent, then the tab on the left - support for adopters- adoption support fund –scroll down to “what support will I be able to get?” then you will find down the list under "specialist clinical assessment, eg FASD. "
Lets all report back how this goes. If an estimated 70% of children in care (presumably this includes adopted) have FASD related medical conditions, there will be lot of us parents and carers queuing up for this. The above website can report where a Local authority are non compliant, (presumably there will need to be trained FASD testers in place), but other difficulties will need to be lobbied for, and parents will need to get up a head of steam in large number to lobby if not satisfied, via for example Adoption UK.
Medical Committees have turned the requests for assessment down on the grounds that it adds nothing to their education or care. They don't have to live with the issue of uncertainty about a child that can't learn basic things, against the question of whether its a child that won't. We need to know how to help all of us with our struggling and disadvantaged children.
The parenting is different for autism and other medical conditions, and so as the knowledge gathers pace about the statistics and issues, we may get more appropriate help from our LA and in School.
Feeling more optimistic about getting a diagnosis in the near future.