Some of you might find this information useful when looking for Thai health insurance for your retirement visas, I got this information from AXA Insurance.
You can choose the deductible option from 100,000 THB, 200,000 THB or 300,000 THB per disability. And they will provide certificate for O-A & O-X visa applications.
For the O-A & O-X visa you have to select one of the Plan 2 options from the table below, It looks very affordable in comparison to the other insurance companies I have seen.