| Verified against primary record | |
| Defined by | WHO and UNICEF, as one component of primary health care rather than a synonym for it[1] |
|---|---|
| Statutory form in England | A commissioning category, "primary medical services", specified by regulation[2] |
| Indexing vocabulary | MeSH treats "primary care" as an entry term under Primary Health Care (D011320)[3] |
| Independently reported | |
| Share of health spending | Definition-dependent: 31.4 per cent of current health expenditure in Costa Rica on one definition, 5.7 per cent on another[4] |
| Bands apply only to the rows beneath them. No statistical classification adopted by the OECD, Eurostat and WHO places care on a primary, secondary and tertiary ladder, so there is no official denominator for "primary care activity". | |
Primary care is the level of a health system at which people make first contact with a clinician who takes continuing responsibility for most of their health needs. In medical travel it is the level that almost never moves: the patient crosses a border for a procedure and returns to a primary care clinician who had no part in the decision and holds no record of what was done.
Primary health care and primary care are not the same thing
The two terms are routinely used interchangeably, and the World Health Organization does not use them that way. In the glossary to the WHO and UNICEF operational framework, primary health care is a whole-of-society approach with three components: primary care together with essential public health functions, multisectoral action, and empowered people and communities. Primary care is one of those three. The same glossary treats the first level of care as earning the name primary care only when it satisfies quality criteria, which makes primary care a standard rather than simply a position in a referral chain.[1]
Indexing practice runs the other way. The United States National Library of Medicine collapses the distinction, listing "primary care" as an entry term under the descriptor Primary Health Care rather than giving it a record of its own.[3] Any claim that the literature distinguishes the two consistently should be read against that, because the vocabulary used to retrieve the literature does not.
How primary care is constituted in law
In England the category is contractual rather than clinical. Section 83 of the National Health Service Act 2006 requires NHS England to secure the provision of primary medical services to the extent it considers necessary to meet all reasonable requirements, permits it to make any arrangements it considers appropriate including services performed outside England, and leaves what counts as primary medical services to be specified by regulation.[2] On that construction primary care is defined by how a service is commissioned, not by the complexity of the problem brought to it.
A fuller account of what the level is supposed to achieve comes from expert committees rather than statute. The United States National Academies define high-quality primary care as whole-person, integrated, accessible and equitable care delivered by interprofessional teams accountable for most of an individual’s health needs through sustained relationships, and state plainly that this is aspirational rather than a description of current practice.[5]
Gatekeeping is a policy choice, not a property of the level
Primary care is often described as the gatekeeper to specialist care. That is true of some systems and not others. An OECD review defines gatekeeping as an arrangement in which general practitioners or other primary care physicians control access to specialist care, surveys which member countries apply it alongside cost-sharing, and examines where patients can bypass the pathway.[6] Where no gatekeeping applies, a patient may reach a specialist without any primary care involvement at all, which matters for medical travel because it removes the one clinician who would otherwise hold the whole picture.
The measurement problem
Primary care has no agreed measurable boundary, and the clearest demonstration is what happens to spending estimates when the definition changes. A Pan American Health Organization study found that the System of Health Accounts 2011 was not designed to monitor primary health care expenditure and offers no guidance for doing so, that WHO and the OECD operationalise it differently, and that for Costa Rica the resulting share of current health expenditure was 31.4 per cent on the WHO definition against 5.7 per cent on the OECD definition.[4] WHO’s own methodological work reaches a compatible conclusion: spending measured on national definitions diverged significantly from a proposed global measure in each of the four countries examined.[7] A primary care spending share quoted without its definition is not a fact about a country.
Primary care and treatment abroad
The ladder maps poorly onto medical travel. The United States Centers for Disease Control and Prevention describes medical tourism as travelling internationally to receive medical care and lists cosmetic surgery, dental care, cancer treatment, fertility treatment, organ transplantation, substance-use rehabilitation and reproductive services among the categories commonly sought, with infections the most common complication and standards of care, drug regulation and accreditation varying by country.[8] Dental and cosmetic work, which sit at or near the primary level in most taxonomies, are among the highest-volume categories of treatment travel, while the referral ladder assumes that the further a patient travels the higher the tier. The same CDC guidance uses "primary care professional" only to mean the traveller’s clinician at home, and classifies care into no levels at all.
See also
- Secondary Care, the level primary care refers into, and which has no positive statutory definition in England
- Clinical Referral, the act by which a patient moves between levels, and who is permitted to perform it
- Continuity of Care, the construct that describes what is lost when the primary clinician is bypassed
- Outpatient Care, the counting unit most primary care activity falls into
References
- World Health Organization and UNICEF. Operational framework for primary health care: transforming vision into action. 14 December 2020, ISBN 9789240017832. Verified against primary record: the glossary of the framework document was opened and its entries for primary health care, primary care, first level of care, gatekeeping and counter-referral read. Retrieved 10 October 2026.
- United Kingdom Parliament. National Health Service Act 2006, section 83. Version in force as at October 2026. Verified against primary record: the section text was opened and read. Retrieved 10 October 2026.
- United States National Library of Medicine. Medical Subject Headings descriptor Primary Health Care (D011320). Introduced 1974, served from 2026 MeSH data. Verified against primary record: the descriptor record was opened and its scope note, tree number and entry terms read. Retrieved 10 October 2026.
- Rathe M, Hernandez-Pena P, Pescetto C, Van Mosseveld C, Borges dos Santos MA, Rivas L. Primary health care expenditure in the Americas: measuring what matters. Revista Panamericana de Salud Publica 2022;46:e70. Verified against primary record: the article PDF was opened and the Costa Rica comparison read. Retrieved 10 October 2026.
- National Academies of Sciences, Engineering, and Medicine. Implementing High-Quality Primary Care: Rebuilding the Foundation of Health Care. National Academies Press, 2021. Verified against primary record: the chapter was opened and the committee’s definition and its statement that the definition is aspirational were read. Retrieved 10 October 2026.
- Mueller M. Incentivising patient pathways in outpatient care: a review of gatekeeping and cost-sharing policies across the OECD. OECD Health Working Papers, 28 May 2026. Verified against primary record: the publication page was opened and its definition of gatekeeping and description of scope read. Retrieved 10 October 2026.
- WHO Regional Office for Europe. Tracking primary health-care spending in selected countries: System of Health Accounts 2011 methodology. 21 November 2022, ISBN 9789289058544. Verified against primary record: the publication record was opened and its findings on divergence between national and global measures read. Retrieved 10 October 2026.
- Stoney RJ, Leidel L. Medical Tourism. CDC Yellow Book: Health Information for International Travel, 2026 edition. Last reviewed 23 April 2025. Verified against primary record: the chapter page was opened and read. Retrieved 10 October 2026.
Sourcing note: the WHO distinction between primary health care and primary care is taken from the glossary of the 2020 operational framework, not from the Declaration of Astana, whose published record carries no definition of either term. The Costa Rica figures are reported as a demonstration that primary care spending shares are definition-dependent, and are not offered as a current measure of Costa Rican spending. No source was found in which an official statistical classification places care on a primary, secondary and tertiary ladder.