Any patient and their spouse or family who accompanies the patient as caretaker, etc. wishing to receive medical treatment or rehabilitation services at a medical institution in Korea is required a medical tourism visa (C-3-3 visa, or G-1-10 visa).
C-3-3: Short term visa for 90 days or less. Depending on the documents submitted, the visa will be valid for a duration of 30 to a maximum of 90 days. If you wish to extend your stay in Korea, you will need to submit an application to extend the period.
If you are staying in Korea for 91 days or more after you have entered with a C-3-3 visa, you will need to extend your stay with a G-1-10 visa and apply for an Alien Registration Card (ARC).