What does excluded next to my declared pre existing medical conditions on my validation certificate mean?

In some cases, we may not be able to provide cover for your pre-existing medical conditions. You can identify these conditions by the word "excluded" next to them on your Validation Certificate. 

This means that if you have any pre-existing conditions or complications related to those conditions, the insurance policy will not cover the costs associated with them. As a result, you will have to bear the financial responsibility for any expenses incurred due to these conditions or their complications.