On the heels of Chris Bryant's Knighthood, he brought the ABI Bill to parliament which was passed. Over the last year the consultation period has been done. There is a reception in parliament on the 1st of February where you, yes you reading this, can meet your MP there, you first need to go through a simple process to invite your MP. Here's a link to the UKABIf newsletter, click on the Acquired brain injury bill reception link and this should bring you to the page, just follow the instructions if you are interested.
The aim of this I imagine, is to get you to influence your MP in potential up coming votes on the changes that should take place this year.
If you want a decent system with a good diagnostics, rehabilitation package and care package then you know what to do.
Another option is to directly contact your MP and ask them to support the process.