There’s no fixed list for medical cannabis in the UK; eligibility depends on...

https://highstylife.com/what-is-the-role-of-patient-history-in-uk-medical-cannabis-eligibility/

There’s no fixed list for medical cannabis in the UK; eligibility depends on specialist approval after you’ve tried standard treatments. As NHS access is currently very limited, many patients turn to private clinics. Keep your full medical records ready.