What health insurance options are available for retirees in Thailand with pre-existing conditions like diabetes?

The original poster, living in Thailand on a retirement visa and managing type 2 diabetes at the age of 66, expressed concerns over insufficient health insurance coverage offered by Bangkok Bank, which only covers up to 20,000 baht. Comments suggest that the insurance from the bank primarily covers accidents, not health issues, and recommend exploring separate health insurance policies that cater specifically to pre-existing conditions such as diabetes, as the current offer is inadequate for substantial medical needs.