Pardons if this has been covered before. I hold a Non-Resident O visa, which means that (so far) I am not required to have health insurance. If I leave Thailand for a short trip and return, will I be required to purchase health insurance before re-entering? Regulations seem a bit unclear on this.
TLDR : Answer Summary
The question concerns whether holders of a Non-Resident O visa are required to purchase health insurance when re-entering Thailand after a short trip. While there is a need for a re-entry permit to maintain the current visa status, the requirement for health insurance is linked to the Thailand Pass, which is necessary for entry into Thailand, regardless of the visa type. There were concerns raised about insurance requirements particularly for older travelers.