When you buy health insurance everything looks simple. Then you are actually standing at the hospital and the first question is "how do I claim?" This article compares the two main methods so the differences are clear on every dimension.
The two methods in brief
Fax claim (claiming directly through the hospital) means a hospital in the insurer's network coordinates with the insurance company directly. The company approves a limit before or during treatment, and you do not have to pay out of pocket for the part that is covered.
Paying first and claiming back (reimbursement) means you pay the treatment cost in full yourself, then gather the documents and submit them to the company afterwards, within the time frame the policy sets.
Side by side
- Cash you need on hand — with a fax claim you need almost none; with reimbursement you must be able to pay the whole bill first, and an inpatient bill can run from tens of thousands to hundreds of thousands of baht.
- When you can use it — a fax claim only works at a network hospital and where the company's approval comes through in time; reimbursement works at almost any medical facility, subject to the plan's conditions.
- Paperwork you handle yourself — with a fax claim the hospital handles most of it and you simply identify yourself and sign; with reimbursement you must obtain the medical certificate and original receipts and fill in the forms yourself.
- How long until the money — a fax claim is settled at the counter; reimbursement means waiting for the company to assess it within the stated processing period.
Which to use when
The main plan is to use a fax claim whenever you can, because it is convenient and does not strain your cash flow — so check in advance which network hospitals are near you. Reimbursement is the back-up: an out-of-network hospital, an emergency where you cannot choose the hospital, or a case where on-the-spot approval does not arrive in time for treatment.
When a fax claim may not go through at the counter
Sometimes the hospital is in the network but the company does not approve immediately — for example where it needs to check whether the condition is pre-existing or still within a waiting period. In those cases you may have to pay first and claim afterwards. That does not necessarily mean the claim is being denied; it simply moves the assessment to a different channel. Don't panic at the counter.
Be ready for both routes
Carry your insurance card or keep the policy number on your phone, know the company's claims hotline, and every time you receive treatment ask for the original documents and keep them — even if you intend to use a fax claim — in case you have to switch to claiming yourself. With that, you can handle whatever happens on the day.
In short
A fax claim is the convenience available when the conditions are met; paying first and claiming back is the broader route, but it needs cash and your own document handling. Know when to use each, make keeping documents a habit, and claiming becomes something you manage rather than something you hope for.