Health requirement · Tuberculosis and undertakings
Abnormal chest x-ray, tuberculosis and the health undertaking: what happens after the visa medical finds something
The chest x-ray is the part of the visa medical that most often produces a letter, because tuberculosis is the disease the health requirement was written for and because applicants from the countries where it is common carry the marks of old infections. An abnormal x-ray is a referral, and the referral leads to one of two places: active disease, which stops the grant until it is treated, or evidence of past infection, which produces a health undertaking and a grant. The undertaking is a commitment to be followed up in Australia, and it is kept by turning up. This guide sets out what the Medical Officer asks for, how long it takes, the difference between active and inactive disease, what the undertaking requires, who else is asked to sign one, and what happens if it is not kept.
By Keshab Chapagain, registered migration agent (MARN 1576536) since 2015 · WIDEN, Sydney · Reviewed October 2026
Keshab Chapagain · MARN 1576536 · Registered since 2015 - Abnormal x-ray
- A referral for sputum tests, a CT or a specialist report
- Delay
- Weeks for sputum; months if treatment is needed
- Active TB
- No grant until treated and cleared
- Inactive or past TB
- Health undertaking, then grant
- Form 815
- Report to the state service after arrival; attend follow-up
- Not kept
- Cancellation can be considered
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Why the x-ray matters
The health requirement has two limbs: freedom from a disease or condition that is a threat to public health, and freedom from one that would cost the community significantly. Tuberculosis is the disease the first limb is about. It is airborne, it is treatable, and Australia has one of the lowest rates in the world, which it keeps by screening everyone who comes to live here for more than a short visit. The chest x-ray is required of most applicants aged eleven and over for permanent visas and for temporary visas of more than six months from higher-incidence countries, and the panel radiologist reports it to the Department against a protocol that flags anything that could be tuberculosis, old or new. The medical examination guide covers the rest of the examination.
What an abnormal result starts
An x-ray reported with a finding, scarring, a nodule, a shadow, calcification, pleural thickening, goes to a Medical Officer of the Commonwealth, who decides whether the finding needs further investigation and, if so, what. The applicant receives a request, through the panel clinic or through ImmiAccount, for the further tests, with a period in which to complete them. Nothing is decided at this point about the visa; the Department waits. The commonest finding in applicants from South Asia, South-East Asia, Africa and parts of Eastern Europe and Latin America is the scar of an infection acquired in childhood and healed without ever being diagnosed, and the further tests exist to confirm that it is healed.
Sputum, CT and the specialist
The usual request is for sputum: three early-morning samples on consecutive days, examined by microscopy for the bacterium and cultured for several weeks to see whether it grows. Microscopy is quick; the culture takes six to eight weeks to report as negative, because the organism grows slowly and the laboratory waits the full period before saying it has not. Where the finding is unclear, a CT scan of the chest is requested; where the picture needs interpretation, a report from a respiratory physician. The applicant pays for the tests at the panel clinic's rates, and the results go to the Medical Officer, who then advises the Department that the applicant meets the requirement, meets it with an undertaking, or does not meet it. An applicant who delays the tests delays the decision by exactly that period.
Active tuberculosis
Where the culture grows the organism, or the clinical picture is of active disease, the applicant does not meet the health requirement, because active tuberculosis is a threat to public health, and no visa that carries the requirement can be granted while it persists. The requirement is not waivable on this limb; it is met by treatment. The applicant is treated, in Australia under the public health system if they are here, or at home if they are not, with a standard course of six months or longer, and at the end the panel doctor re-examines, repeats the x-ray and the sputum, and confirms the disease is resolved and the applicant is not infectious. The Department then proceeds, usually with a health undertaking attached. An applicant in Australia on a bridging visa during treatment is not removed for the disease; an applicant outside Australia waits until cleared. The application is not refused for the disease unless the applicant declines treatment or the time allowed runs out.
Inactive and previous tuberculosis
Where the tests show no active disease but the x-ray shows the marks of an old infection, or the applicant declares previous treatment, or a blood test for latent infection is positive, the Medical Officer advises that the applicant meets the requirement subject to a health undertaking. Latent infection is not infectious and is not a threat, but it can become active disease years later, particularly if the person's health changes, and the undertaking exists so that an Australian clinic knows the person and sees them at intervals. The applicant signs the undertaking, the Department grants the visa, and the undertaking's obligations begin on arrival. The condition does not affect the visa's work, study or travel rights.
The health undertaking
The undertaking is made on Form 815 and is an agreement to do four things: to contact the Health Undertaking Service in the state or territory of residence within the period stated after arrival, which is usually four weeks; to attend the clinic it refers you to for an examination and whatever tests it considers necessary, typically a chest x-ray and a review, with follow-up at intervals for a period of months to a couple of years; to complete any treatment the clinic recommends, which for latent infection may be a course of preventive medication the person can accept or decline on medical advice; and to tell the service of any change of address. The examinations are at public clinics and are free. The undertaking is signed in ImmiAccount or on the form when the Department asks, before grant, and an applicant who declines to sign is not granted the visa. For an applicant already in Australia, the first contact is made from the grant rather than from arrival.
Other conditions that carry an undertaking
The same instrument is used where the examination finds hepatitis B or C, HIV, or certain other conditions that are managed rather than cured, and where the visa can be granted with the condition, which depends on the cost assessment and, for permanent visas, on the waiver where one exists. The undertaking links the person to specialist follow-up in Australia; it is not a treatment obligation except where the clinic recommends treatment, and it is not a restriction on the visa. An applicant asked to sign for one of these conditions has met the health requirement, or has had it waived, and the undertaking is the last step rather than a further hurdle. The health waiver guide covers the cost limb and the waiver.
The delay and your current visa
A sputum culture adds two months to a decision; a treatment course adds six or more. An applicant in Australia on a bridging visa is covered by it for the duration, because the bridging visa runs until the application is decided. An applicant on a substantive visa that will expire during the tests has to be sure the application was lodged before expiry so that a bridging visa exists; an applicant outside Australia whose offshore application waits simply waits, and a visitor visa to come in the meantime is examined on the health question too. An employer waiting for a sponsored worker, or a student for a course start, is told the reason for the delay, which is health and not the Department's queue. The processing delay guide sets out what can and cannot be hurried.
After arrival
- Within the period on the undertaking, contact the Health Undertaking Service for the state you live in; the Department's grant letter gives the contact.
- Attend the appointment the clinic gives, with the undertaking and the grant letter.
- Keep each follow-up appointment until the clinic discharges you, and tell the service if you move.
- Accept or decline preventive treatment on the clinic's advice; declining is permitted where the clinic says so, and is recorded.
- Keep the discharge letter, because a later permanent application will ask about the condition and the undertaking.
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General information only, current at October 2026; not advice on your own case. Public Interest Criteria 4005 and 4007 and the health undertaking provisions of the Migration Regulations 1994, and the Department’s health examination and health undertaking arrangements, as at the date above; medical questions are for the panel doctor and the treating physician, and the Health Undertaking Service’s requirements are its own. Outcomes depend on the Department’s assessment of each application; no registered migration agent can guarantee a result (Code of Conduct, Migration Agents Regulations). Keshab Chapagain, MARN 1576536.
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My chest x-ray came back abnormal. Is my visa refused?
No. An abnormal x-ray is a referral, not a decision. The panel radiologist reports a finding, the Medical Officer of the Commonwealth asks for more: usually sputum tests over three mornings, sometimes a CT scan or a respiratory physician's report, and the application waits for the results. Most referrals from applicants born in high-incidence countries are old scarring or a healed infection, and the outcome is a health undertaking and a grant. A refusal on tuberculosis happens only where active disease is found and the applicant does not complete treatment.
What is the difference between active and inactive TB?
Active tuberculosis is current disease, usually confirmed by sputum culture, and it is a public health threat: the visa cannot be granted until the applicant has been treated, usually for six months, and a panel doctor confirms they are no longer infectious and the disease is resolved. Inactive, latent or previous tuberculosis is evidence of past infection, healed scarring, or a positive blood test with no disease; it is not a threat, and the Department grants the visa on the applicant signing a health undertaking to be followed up in Australia.
What does the health undertaking require?
Form 815 is an undertaking to contact the Health Undertaking Service in the state or territory you settle in, within the period stated after arrival, usually four weeks; to attend the examinations and tests it arranges, which are typically a chest x-ray and a review at intervals; to complete any treatment recommended; and to keep the service informed of your address. The undertaking is a condition of the grant, and it is free. It is not a diagnosis and it does not restrict work, study or travel.
Who else is asked to sign an undertaking?
Applicants whose examinations show hepatitis B or C, HIV, or certain other conditions that need monitoring rather than treatment before grant, where the visa is one that can be granted with the condition. The undertaking is the Department's way of linking the person to Australian health follow-up; for those conditions it does the same job as for tuberculosis.
What if I do not sign, or do not report after arrival?
If you do not sign when asked, the visa is not granted. If you sign and do not report, the service notifies the Department, and a failure to comply with a health undertaking is a ground on which the Department can consider cancelling the visa and is a matter in any later application. In practice the service writes and calls before anything happens, and compliance is a matter of attending appointments.
What does the consultation cost?
A$330 inc. GST for 30 minutes by video with Keshab Chapagain (MARN 1576536), credited in full if you engage WIDEN. For a health referral the session explains what the Medical Officer has asked for and why, what the timing does to a visa or a bridging visa that is expiring, and what to do if the result is active disease; the medical side is for the panel doctor and the physician.
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