If someone was diagnosed with depression aged 18 and given every different type of antidepressant under the sun (7 different types at least) until they were finally diagnosed with Autism aged 30. Could they claim against the misdiagnosis?
The only reason I would want to claim is that the antidepressants caused severe mental health problems and there was suicide attempts, it also severely effected quality of life. It even led to staying in abusive situations due to feeling “numb”.
Although it sounds impossible to prove I think and I would feel guilty if anyone got into trouble over it.