Medical Certificates: Format and Validity

It should follow the Medical Council of Thailand format and show the patient's full name and identification number, the examination date, the physician's findings or opinion, the clinic or hospital name, the doctor's signature and the medical licence number. Certificates missing the licence number or the facility's seal are routinely rejected by receiving agencies and by the Department of Consular Affairs.

No single statutory validity period exists; each receiving authority sets its own. The Department of Land Transport accepts certificates issued within the past month for driving licence matters, while many registration and visa procedures accept one to three months. Confirm the destination authority's rule before your medical examination so the certificate does not expire during translation and legalization.

Most private hospitals and large public hospitals can issue English-language certificates, which removes a translation step. For consular legalization the document must still be a paper original carrying the physician's wet signature and the hospital seal. Photocopies or self-printed PDFs are not accepted for legalization.

Work permit applications and some extensions of stay require a certificate confirming the applicant is free of the diseases listed in the relevant ministerial regulation: infectious-stage tuberculosis, symptomatic elephantiasis, contagious-stage leprosy, narcotic drug addiction and chronic alcoholism. It must be issued by a physician licensed to practise medicine in Thailand.

A medical certificate is a short statement of the doctor's opinion on one issue, such as fitness or the need for continued treatment. A discharge summary covers the whole admission: diagnosis, procedures or surgery, medication and the ongoing care plan. Insurers and receiving physicians abroad normally ask for both together.

The Department of Consular Affairs certifies that the translation matches the Thai or English original, which is what state bodies and embassies want. A Notarial Services Attorney registered with the Lawyers Council of Thailand certifies a signature, a true copy, or the translator's affidavit, which suits documents going to private parties, universities and foreign insurers.

Translate each submitted document in full. Omitting pages can look like selective disclosure and foreign insurers and courts often reject partial translations. If the file is very large, choose complete documents — discharge summary, medical certificate, invoices — and translate every page of each one.

The standard set is a medical certificate stating the diagnosis, the discharge summary, an itemized hospital bill, original receipts, a copy of the passport page with the entry stamp, and the signed claim form. Many insurers additionally require certified true copies or a notarized claimant signature.

The hospital or physician issues a medical certificate of death, the death is notified to the registrar within 24 hours under the Civil Registration Act B.E. 2534 so the death certificate can be issued, the deceased's embassy is informed, the death certificate is translated and legalized at the Department of Consular Affairs, and estate or repatriation steps follow. Unnatural deaths require an inquest under the Criminal Procedure Code.

Obtain the original certificate bearing the hospital seal, the physician's signature and medical licence number; translate it into the destination language; certify the translation at the Legalisation Division of the Department of Consular Affairs; then obtain an Apostille if the destination is a Hague Convention party, or destination-embassy legalisation if it is not.

It must follow the Department of Employment's prescribed form, confirming the absence of the prohibited diseases listed in the applicable ministerial regulation, and carry the physician's signature and licence number. Confirm the clinic uses the latest form, as outdated versions are commonly rejected.

Generally a letter from the Thai hospital confirming the treatment plan, the required length of stay and estimated costs, plus financial evidence and a passport with sufficient validity. Accompanying persons may file in the same group under the applicable rules. Verify the document list with the embassy or Immigration office, as conditions and permitted stays change.

It must state the patient's name exactly as in the passport, the diagnosis, the treatment plan and the length of stay required, the number of necessary companions, the estimated cost, and confirmation that the hospital has accepted the patient for treatment. It needs the hospital seal, the physician's signature and their Thai medical licence number. Issue it within 30 days of filing — embassies and Immigration routinely reject older certificates.

Most large private hospitals in Bangkok, Phuket and Chiang Mai have direct-billing arrangements with major insurers and third-party administrators. For planned treatment, obtain a guarantee of payment at least 24–72 hours ahead by sending the treatment quotation and medical certificate for approval. In emergencies the hospital admits first and seeks retroactive approval, so always carry the insurance card and the insurer's emergency number.

Insurers generally require original receipts bearing the hospital seal, an itemised billing summary, a medical certificate stating the diagnosis with ICD codes, and passport pages with entry stamps confirming presence in the country. If the policy specifies another language, the translation must be certified. The most common rejection cause is internally inconsistent dates, so reconcile treatment dates, receipt dates and travel dates before submitting.

Category 2 narcotics and psychotropic substances require a medical certificate stating necessity, quantity and duration of use, plus a personal-carriage permit from the Thai FDA, normally limited to a 30-day supply. Keep the medication in its original labelled packaging in the patient's name and carry an English-language medical certificate to show customs officers on both departure and arrival.

A physician can certify past treatment based on the recorded chart, but must date the certificate the day it is actually issued — back-dating breaches Medical Council ethics rules. Hospitals normally retain records for at least five years after the last visit, so request copies while still under care if you anticipate needing them later.

Only within limits. Medical Council notifications allow a physician to certify only what was genuinely observed in that consultation. Agencies requiring a physical examination — work-permit certificates, driving licence certificates, prohibited-disease screening — still require an in-person visit. Telemedicine suits follow-up, repeat prescriptions and second opinions.

Apply for an extension on medical grounds at the Immigration office covering the actual accommodation, using a medical certificate stating necessity and expected treatment duration, a hospital letter, and evidence of funds. Extensions are generally granted for up to 90 days at a time and renewable as medically justified. File at least seven days before the current permission expires to avoid overstay.

Most missions expect the treating physician to state the patient name, diagnosis, treatment plan and expected duration of stay, plus an explicit line that the patient requires an accompanying carer. The letter should sit on hospital letterhead with the practitioner licence number, signature and seal, and then be translated and the translation legalised if the receiving authority asks for it.

Most offices treat the certificate as valid for about 30 days from issue, and some provinces apply a shorter window plus a fixed list of screened conditions. Use a hospital that issues the form the Department of Employment accepts, and confirm the validity window with the provincial employment office before booking the examination.

Insurers usually request the medical certificate, a treatment summary and itemised receipts as hospital-certified copies with an English translation. Some policies also require the translation to be legalised at the Department of Consular Affairs, so read the policy wording and ask the insurer for the document list in writing first.

Usually no second translation is required when the hospital issues it in English, but consular certification attests the signatory, so it may still be required. Where the destination uses another language, such as German or Japanese, a further translation from the certified English version is normally made under that country's rules.

Generally original itemised receipts, a treatment summary or discharge summary, a medical certificate stating the diagnosis with disease codes, and a passport page copy showing entry stamps. If the policy requires another language, translation and certification are needed. Request the insurer's list first so everything is filed in one round.

Receiving authorities usually prescribe their own form and require issue within three months, testing only the listed conditions. Use the form downloaded from that authority and have the doctor complete every field, since blank fields are the most common cause of refiling.

The general practice is a personal supply of up to about thirty days carried with a prescription or an English medical certificate naming the generic drug and dosage. Controlled substances and psychotropic medicines face stricter conditions and some require prior authorisation from the Thai FDA. Verify the specific molecule before travelling because brand names differ between countries.