Field entry, published 2026-11-03T00:00:00.000Z, updated 2026-11-03T00:00:00.000Z. Group: Major Group 2: Professionals

How are health professionals classified?

Health professionals in ISCO-08 are grouped by the field of health knowledge they apply and by the kind of health task they perform. The group covers work that diagnoses, treats, prevents and promotes health, as well as work that restores function and supports wellbeing through professional health judgement. What unites a doctor, a nurse, a pharmacist, a therapist and a public health specialist in this broad group is not a shared workplace. It is a shared reliance on health knowledge applied to people, populations or health systems, with responsibility for outcomes that matter deeply.

What separates professional health work from health support work?

Health systems employ many skilled people whose main tasks support care without constituting professional health practice in the ISCO sense. A support worker may take observations, assist with personal care, prepare a room or help a patient move, following a care plan made by a professional. A technician may operate equipment, prepare materials or carry out routine tests under direction. Those roles are vital, but classification looks at who assesses, decides, prescribes or designs the intervention, and who bears professional responsibility for it.

A health professional typically assesses a person’s condition or a population’s needs, forms a clinical or public health judgement, plans an intervention, carries it out or directs it, and evaluates the result. That cycle of assessment, judgement, action and review is the core pattern. When a job mainly performs one step under the direction of another professional, without the full cycle of judgement, it tends to sit with associate professionals or support occupations.

How do health fields divide the group?

In general terms, the ILO structure distinguishes medical practice, nursing and midwifery, pharmacy, dentistry, therapy and rehabilitation, nutrition, audiology and speech work, optometry, veterinary work and public health work, among other health fields. Each field has its own knowledge base and its own scope of practice. A pharmacist’s professional judgement concerns medicines, safety and use. A physiotherapist’s judgement concerns movement, function and rehabilitation. A dentist’s judgement concerns oral health. The fields overlap in teamwork, but classification still follows the field of the main task.

Public health work deserves a special note because it can look less clinical than hospital work. A professional who analyses disease patterns, plans a prevention programme, evaluates a health service or advises on environmental health is still doing health professional work when the task requires health knowledge and professional judgement about populations. The patient in that case is a community rather than one person, but the knowledge and responsibility remain professional in character.

Why is the main task test especially sensitive here?

Health titles vary widely between countries, and the same title can carry different duties in different systems. Classification must therefore resist the temptation to place a job by title alone. A role called a practitioner in one setting may mainly assess and treat independently, while a similar title elsewhere may mainly assist a doctor. ISCO-08 asks what the job does, in which field, with what degree of independent judgement. That approach also protects the distinction between professional practice and regulated practice in a particular country, since regulation and classification are related but not identical. A job can be classified as professional health work in ISCO terms even where local rules about titles differ, and local rules can restrict who may perform a task without changing the ISCO logic.

Teamwork adds another layer. Modern care is rarely delivered by one professional alone. A nurse may lead a care plan, a doctor may consult a pharmacist, and a therapist may adjust a rehabilitation plan after discussion. Classification does not require a professional to work alone. It requires that the professional contribution itself involves assessment and judgement in that person’s health field, rather than only carrying out another professional’s instructions.

What questions help a reader understand a health placement?

Consider the health problem at the centre of the job. Is it diagnosis, treatment, prevention, rehabilitation, medicines, nutrition, oral health, animal health or population health? Consider who assesses the need and decides the response. Consider whether the job can change a plan in light of new evidence, or must refer every change upward. Consider whether the knowledge required is a distinct health field rather than general care skill. When those answers converge on one health field and on independent professional judgement, the work belongs among health professionals in Major Group 2.

This general picture is deliberately broad. Health practice contains many specialisms, and the ILO structure refines them in detail. A general guide cannot and should not assign a particular health job to a finer level. Its value is in showing the logic: field of health knowledge plus a full cycle of professional judgement, applied to a person, an animal or a population, places work in this professional family.

Sources checked

1. ILO ISCO-08 structure

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