There isn’t a fixed ‘list’ of conditions for medical cannabis in the UK....

https://yenkee-wiki.win/index.php/Multiple_Sclerosis_Spasticity:_Is_Medical_Cannabis_an_Established_Pathway_in_the_UK%3F

There isn’t a fixed ‘list’ of conditions for medical cannabis in the UK. Eligibility is decided by a specialist consultant, usually after standard treatments have been unsuccessful