Scope, Licensure and Referral Across Countries and Systems of Medicine
Level 3, Clinical application
In brief
A practitioner’s scope is set by law and regulation where they practise, by their professional body, by their employer and by their own competence. Titles, prescribing rights, test ordering, supplement advice and the practice of traditional systems all vary between countries. Telehealth across borders generally falls under the rules of the place where the patient is located. Knowing these limits, and referring clearly when a need falls outside them, protects patients and practitioners.
Integrated Functional Medicine is practised by doctors, nutritionists, dietitians and health coaches across many countries. The method is shared; the rules are not. What a practitioner may call themselves, what they may diagnose, prescribe, order or recommend, and how they may practise across borders all depend on where they work and who they are. An earlier article described how traditional and complementary medicine is regulated. This article focuses on the practical question every practitioner must answer: what is within my scope, and what do I do when a patient needs something that is not?
4 layers of scope
| Layer | Set by | Examples |
|---|---|---|
| Legal scope | National or regional law and statutory regulators | Who may diagnose, prescribe, use protected titles, order certain tests |
| Professional standards | Professional bodies and codes of conduct | Standards of practice, continuing education, ethics |
| Employment and setting | Employers, clinics, insurers | Local policies on what a role may do |
| Personal competence | The practitioner’s own training and experience | Whether they are competent to manage a particular condition or technique |
A practitioner is limited by the narrowest of these layers. Being legally permitted to do something is not enough if one is not trained to do it well.
How scope varies
Titles
In many countries the title dietitian is protected by law, with registration requiring accredited training. The title nutritionist is protected in some countries and not in others, where voluntary registers exist for those with accredited qualifications. Health coach is generally unregulated, though certification bodies set standards. Using a protected title without registration can be an offence.
Diagnosis and prescribing
Diagnosing medical conditions and prescribing medicines are usually reserved for registered medical practitioners and some other professions with specific prescribing rights, such as nurse prescribers, pharmacist prescribers or, in some countries, practitioners of recognised traditional systems within their own system.
Ordering tests
The right to request laboratory tests varies. In some countries, dietitians or nutritionists may request certain tests; in others only doctors can. Direct to consumer laboratories exist in some jurisdictions, but practitioners who interpret such results take on responsibility for acting on them appropriately.
Supplements and herbal products
Rules on recommending, supplying or prescribing supplements and herbal medicines vary. In some countries, certain herbal medicines may be supplied only by registered practitioners; in others, supplements are freely available but practitioners remain responsible for the advice they give.
Traditional systems
Where traditional systems are formally regulated, their practitioners have defined scopes. In several countries, the law restricts practitioners of one system from prescribing medicines from another. Practitioners trained in modern medicine or nutrition should not prescribe traditional medicines unless trained and licensed to do so, and should refer to registered practitioners of those systems where appropriate.
Practising across borders
Telehealth has made it easy to consult patients in other countries. Regulatory principles in many jurisdictions hold that care is delivered where the patient is located, so the practitioner may need to meet the requirements of the patient’s jurisdiction as well as their own. Requirements differ, and some activities, such as prescribing, are generally restricted across borders. Practitioners offering international consultations should seek advice from their regulator and indemnity insurer, and be clear with patients about what they can and cannot provide.
Indemnity and insurance
Professional indemnity insurance covers claims arising from practice. Policies usually specify the activities and jurisdictions covered. Practising outside those terms, for example offering services in another country or using techniques not covered, may leave a practitioner uninsured.
A scope decision guide
- Is this activity permitted for my profession where the patient is? If not, refer.
- Is it consistent with my professional standards and employer policies? If not, refer or seek guidance.
- Am I competent to do it safely? If not, refer or seek supervision.
- Is it covered by my indemnity? If not, do not proceed.
- Does the patient understand my role and its limits? If not, explain.
Referring well
When to refer
- Red flags or suspected serious disease
- Need for diagnosis, prescribing or medication changes outside one’s scope
- Complex conditions requiring specialist expertise
- Lack of progress despite appropriate intervention
- Patient request
How to refer
- Match urgency to the concern: emergency, urgent within days, or routine.
- Write a clear referral using a structured format, including the reason, relevant history, findings, current care and the specific question.
- Obtain the patient’s consent to share information.
- Tell the patient what to expect and what to do if symptoms worsen before they are seen.
- Document the referral and follow up on whether it happened.
Explaining scope to patients
Patients are often unclear about the differences between professions. A brief, clear explanation at the start of care helps: “As a clinical nutritionist, I can assess your diet and nutritional status and design a nutrition plan with you. I don’t diagnose medical conditions or change medicines; for those, I’ll work with your doctor.” This sets expectations and makes later referrals feel natural rather than like a failure.
Worked scenarios
| Scenario | Appropriate response |
|---|---|
| A health coach’s client asks whether to stop her blood pressure medicine because her readings have improved | Encourage her to discuss it with her prescriber; share her home readings with permission |
| A nutritionist in a country where she cannot order tests suspects iron deficiency | Write to the patient’s doctor with the reasons and request assessment |
| A doctor trained in functional medicine is asked by a patient abroad for a prescription by video | Check the rules of the patient’s jurisdiction; usually refer to a locally licensed prescriber |
| A patient asks a dietitian to recommend an Ayurvedic preparation | Explain that this is outside her training; refer to a registered Ayurvedic practitioner if the patient wishes, and coordinate on safety |
| A practitioner notices a changing mole during a consultation | Advise prompt medical assessment and document the advice |
Scope as a safeguard
Scope of practice is sometimes experienced as a limitation. It is better understood as a safeguard for patients and practitioners alike. Knowing one’s scope, explaining it clearly and referring well are signs of professionalism, and they make integrated care, in which many practitioners contribute, both possible and safe.
Scope questions
What determines a practitioner’s scope?
Which rules apply to telehealth across borders?
When should a practitioner refer?
References
- World Health Organization. Framework for action on interprofessional education and collaborative practice. Geneva: WHO; 2010.
- World Health Organization. WHO global report on traditional and complementary medicine 2019. Geneva: WHO; 2019.
- Federation of State Medical Boards. Model policy for the appropriate use of telemedicine technologies in the practice of medicine. 2022.
- Haig KM, Sutton S, Whittington J. SBAR: a shared mental model for improving communication between clinicians. Joint Commission Journal on Quality and Patient Safety. 2006;32(3).
Continue your learning
Practising confidently within scope
IIFM’s 6 month Functional Medicine and Clinical Nutrition program teaches a clinical method that practitioners apply within the scope of their own profession, wherever they practise.
This article is for the education of healthcare professionals. It is not a substitute for individual medical advice, diagnosis or treatment, and does not change any practitioner’s scope of practice. Regulation and guidelines differ between countries.

