Establishment and Structure - The National Health Service (NHS) was established in 1948 as part of social reforms after World War II. - The NHS in England, NHS Scotland, and NHS Wales were the original three systems, with Health and Social Care in Northern Ireland established separately. - The founding principles of the NHS were comprehensive, universal, and free healthcare based on clinical need. - The NHS provides a wide range of health services, with dental treatment and optical care being exceptions. - In England, NHS patients have to pay prescription charges, although certain exemptions apply.

Size and Budget - The combined budget of the four NHS services in 2015-16 was £136.7 billion. - The NHS and related healthcare services employed around 1.6 million people in 2015-16. - The total health sector workforce in the UK in 2014 was 2,165,043, making it the fifth largest employer globally. - The NHS's significant market power in purchasing consumables influences global prices, particularly for medications. - Some countries rely on the UK's assessments for their own decisions on state-financed drug reimbursements.

History - Calls for a unified medical service can be traced back to the Minority Report of the Royal Commission on the Poor Law in 1909. - A resolution proposed at the 1934 Labour Party Conference committed the party to establishing a State Health Service. - Cross-party consensus emerged after the 1942 Beveridge Report recommended a comprehensive health service. - Aneurin Bevan, appointed as Health Minister in 1945, played a significant role in shaping the NHS. - The NHS was proposed in legislation for England and Wales in 1946, Scotland in 1947, and Northern Ireland in 1947.

Principles and Controversies - The NHS was founded on the principles of meeting the needs of everyone, being free at the point of delivery, and based on clinical need. - Charges for dentures, dentists, and glasses led to Aneurin Bevan's resignation from the Labour government in 1951. - Prescription fees were introduced by Winston Churchill's Conservative government but abolished by Harold Wilson's government in 1965. - The NHS has faced controversies and changes throughout its history. - The NHS holds a significant place in British society, reflected in film, TV, cartoons, and literature.

Eligibility for Treatment - Everyone living in the UK can use the NHS without paying the full cost, although charges for NHS dentistry and optometry apply. - Most patients in England have to pay charges for prescriptions, with exemptions for certain groups. - The eligibility for NHS services for overseas visitors has been a topic of discussion and policy considerations. - Brexit has impacted the eligibility of EEA nationals for NHS services, subjecting them to similar restrictions as non-EEA, non-UK residents. - The immigration health surcharge is relevant to the eligibility for NHS services for certain groups.