Clinically reviewed by Dr. Ponlawat Pitsuwan, Physician, Doctor Bangkok. Last reviewed: July 2026
CT scan costs in Bangkok range from around 8,000 to 25,000 THB at private hospitals and clinics, depending on the body area scanned and whether contrast dye is used. Public hospitals cost less but involve longer waits and limited English support. Most quoted prices cover the scan only. Contrast dye, the radiologist report, and a follow-up consultation are usually billed separately.
If you are in Bangkok and your doctor has mentioned a CT scan, the pricing can feel confusing fast. You will see wide ranges quoted online, no clear breakdown by scan type, and little explanation of what is actually included. That is frustrating when you are trying to plan ahead or claim on insurance.
This guide gives you the practical version: what scans cost, what is and is not included in a quoted price, how to get a referral if you do not have a local doctor, and how to prepare so nothing delays your appointment. If you are an expat, a long-term resident, or a medical tourist, this is written for you.
CT Scan Cost in Bangkok by Scan Type
The single price range you see on most websites, 5,000 to 25,000 THB, is not very useful on its own. The cost depends heavily on which body area is being scanned and whether contrast dye is required.
Here is a practical breakdown based on current private hospital pricing in Bangkok.
| Scan Type | Approx. Cost (THB) | Contrast Required? |
|---|---|---|
| CT Head / Brain | 8,000 – 12,000 | Sometimes |
| CT Chest | 8,000 – 14,000 | Sometimes |
| CT Abdomen | 10,000 – 16,000 | Usually |
| CT Pelvis | 10,000 – 15,000 | Usually |
| CT Abdomen + Pelvis | 14,000 – 20,000 | Usually |
| CT Coronary Angiography | 18,000 – 30,000 | Yes |
| CT Calcium Score (Heart) | 8,000 – 12,000 | No |
| Low-Dose CT Chest (Lung Screen) | 5,000 – 10,000 | No |
Public hospitals in Bangkok, such as Ramathibodi or Siriraj, can cost significantly less, sometimes 3,000 to 8,000 THB for a basic scan. The trade-off is waiting time, which can stretch to days or weeks for non-emergency cases, and limited English-language reporting.
What Is and Is Not Included in a CT Scan Price in Bangkok
This is where most patients get caught off guard. A quoted CT scan price almost never includes everything.
What is typically included is the scan itself and basic image acquisition. What is typically billed separately: contrast dye, usually 4,000 to 5,500 THB extra, the radiologist’s interpretation fee, a written report in English, and any follow-up consultation to discuss results.
Before you book anywhere, ask specifically whether the price includes contrast, the radiologist report, and a written English summary. Ask for the answer in writing. Some private hospitals bundle these into a single package price. Others do not, and the final bill can be 30 to 50 percent higher than the figure you saw advertised.
Do You Need a Doctor’s Referral for a CT Scan in Bangkok
Technically, some private imaging centres in Bangkok will accept walk-in patients without a referral. In practice, this creates problems.
Without a referral that specifies the clinical reason and the exact body region, the radiologist has no context for your scan. You may receive a more generalised scan that misses what your doctor actually needs to see. Some facilities will also charge extra or require a separate radiologist consultation on the day.
A referral letter from a GP serves a second purpose: your insurer will likely ask for it. Most travel and expat health insurance policies require proof of medical necessity before reimbursing imaging costs. A GP referral is that proof.
If you do not have a local doctor in Bangkok, this is one of the most common situations I see at our clinic. A walk-in consultation at Doctor Bangkok takes around 20 to 30 minutes. We assess your symptoms, determine which scan is clinically appropriate, and produce a referral letter that imaging centres across Bangkok will accept. We also brief you on preparation before you leave, which saves a second trip.
CT Scan and Insurance in Bangkok
Most international health insurance and travel insurance policies cover CT scans when they are medically necessary. The key word is necessary, and that is why your referral letter matters.
Check whether your insurer requires pre-authorisation before the scan, not after. Call them or check your policy online before you book. Keep every document from the imaging centre: the itemised invoice, the scan report, and the radiologist’s interpretation. Make sure these are in English, or ask for an English translation.
Doctor Bangkok provides itemised English-language invoices and clinical letters formatted for international insurance submission. If your insurer has a direct billing arrangement with a specific Bangkok hospital, ask us and we can factor that into the referral.
Some insurers will not reimburse without a GP letter confirming the scan was clinically indicated. If you skipped the GP step and went straight to imaging, you may face a dispute. It is a small admin task that prevents a large reimbursement headache.
Is a CT Scan in Bangkok Safe
Yes, when ordered appropriately. A CT scan uses X-rays to produce detailed cross-sectional images. The radiation dose is higher than a standard chest X-ray, but for most people, a single scan that is clinically needed carries very low risk.
The more useful question is whether you need this particular scan right now. Unnecessary imaging is the main concern, not the scan itself. That is another reason a GP review before booking matters.
Contrast dye raises two specific points. If you have any history of allergic reactions to iodine, seafood, or prior contrast scans, tell the imaging team before your appointment, not on the day. Contrast can also stress the kidneys, so most imaging centres will require a kidney function blood test before administering it. If you are coming through Doctor Bangkok, we arrange this as part of the pre-scan workup so there are no delays at the imaging centre.
If you are on metformin for diabetes, you will typically need to stop it 48 hours before and after a contrast scan. Confirm this with whoever is managing your diabetes.
How to Prepare for Your CT Scan in Bangkok
Preparation depends on which scan you are having and whether contrast is being used.
For any contrast scan, fast for 4 to 6 hours beforehand. Water and regular medications are generally fine, but confirm with your referring doctor. Wear comfortable clothing with no metal fastenings and remove jewellery before you arrive.
If you are having a chest or abdominal scan, you will be asked to hold your breath briefly during the scan. The technician will walk you through it. It takes seconds.
For cardiac CT or CT coronary angiography, your heart rate needs to be controlled during the scan. The imaging team may give you medication on the day to slow your heart rate slightly. Tell them about any cardiac medications you already take.
The full preparation checklist for different scan types is covered on the Doctor Bangkok diagnostics page. If you are unsure what applies to your specific scan, a brief consultation before your appointment removes the guesswork entirely.
Why See Doctor Bangkok Before You Book
Most imaging centres are excellent at taking pictures. They are not set up to sit with you for 20 minutes and talk through what scan you actually need, whether contrast is appropriate given your history, or what the results might mean once you have them.
That gap is what a pre-scan GP consultation fills. I see a lot of expats and medical tourists who come in with a symptom or a concern and are not sure whether a CT scan is the right next step. Sometimes a different investigation is more appropriate, and we save them the cost and radiation exposure of an unnecessary scan.
If a CT scan is the right call, we write the referral, coordinate with the imaging centre, and see you back once results are ready to explain what the radiologist found in plain English. We are centrally located, BTS accessible, and walk-in slots are available most days.
Need a CT scan in Bangkok and not sure where to start? Doctor Bangkok offers walk-in GP consultations for expats, residents, and medical tourists. We assess your symptoms, recommend the right scan, produce a referral letter accepted by imaging centres across Bangkok, and provide pre-scan preparation guidance in English. We also see you back to discuss results. Visit doctorbangkok.co.th/diagnostics/ or walk in at our central Bangkok clinic, BTS accessible.
Frequently Asked Questions
How much does a CT scan cost in Bangkok at a private hospital versus a public hospital?
At private hospitals in Bangkok, expect to pay 8,000 to 25,000 THB or more depending on the scan type, with contrast dye adding another 4,000 to 5,500 THB. Public hospitals are cheaper, sometimes 3,000 to 8,000 THB, but waiting times for non-emergency scans can stretch to days or weeks and English-language reports are not always available. Doctor Bangkok can help you identify the right facility for your clinical need and budget.
Do I need a doctor’s referral to get a CT scan in Bangkok?
Some imaging centres will scan walk-in patients, but a clinical referral specifying the body region and reason for the scan helps the radiologist produce a more targeted result. Without one, your insurer may also refuse to reimburse. A consultation at Doctor Bangkok produces the referral letter and covers preparation instructions in English before you attend the imaging centre.
What is not included in a CT scan price in Bangkok?
Most quoted prices cover the scan only. Contrast dye, the radiologist’s interpretation, a written English-language report, and any follow-up consultation are usually billed separately. Always ask for an itemised quote before booking and confirm in writing what is included, because the final bill is often 30 to 50 percent higher than the advertised price.
Will my insurance cover a CT scan in Bangkok?
Most international health and travel insurance policies cover medically necessary CT scans. Check whether your insurer requires pre-authorisation before the scan, keep all itemised English receipts and the radiology report, and have a GP referral letter ready as proof of medical necessity. Doctor Bangkok provides English-language clinical letters and itemised invoices formatted for international insurance submission.
How do I prepare for a CT scan with contrast dye in Bangkok?
Fast for 4 to 6 hours before the scan. Water and regular medications are usually fine, but confirm with your doctor. Tell the imaging team about any allergy history, including reactions to iodine or seafood, and expect a kidney function blood test before contrast is administered. If you are on metformin, ask your doctor whether you need to pause it around the time of the scan.
Can I get same-day CT scan results in Bangkok?
At most private hospitals in Bangkok, preliminary images are available the same day. A full written radiologist report in English typically takes 24 to 48 hours. If you need urgent results, tell the referring clinic or imaging centre at the time of booking so they can flag your case accordingly.
How do I know which type of CT scan I actually need?
This depends entirely on your symptoms and what your doctor is looking for. A GP consultation is the right starting point, not the imaging centre’s booking desk. At Doctor Bangkok, we assess your situation and recommend the specific scan type and body region needed, which saves you both time and money.
Dr. Ponlawat Pitsuwan
Physician, Doctor Bangkok
a private medical clinic in central Bangkok. He sees expats, residents, and medical tourists for diagnostic consultations, imaging referrals, and results review. His focus is straightforward, evidence-based care delivered in plain language.
Dr. Ponlawat Pitsuwan is a physician at Doctor Bangkok, a private clinic in central Bangkok. He sees expats, residents, and medical tourists for general medicine, wellness consultations, and IV therapy. His focus is straightforward, evidence-based care delivered in plain language.
