I am currently in Thailand on an O-A visa. I am aware that I will require health insurance when I apply for an extension. I want to synchronise the dates of the health policy with the visa extension so that I have the required full-year cover at the time of extension application so I was planning to get health cover at the time of the first extension application. However, I also want to leave Thailand to travel a few times before then. Will I have problems getting back into Thailand on the existing O-A without health insurance?
TLDR : Answer Summary
The user is currently in Thailand on an O-A visa and is planning to synchronize the health insurance policy dates with the visa extension application. They are concerned about traveling outside Thailand and whether they will face issues re-entering the country without valid health insurance, as the requirement for health insurance applies for entry after October 31, 2019.