RT Journal Article SR Electronic T1 Taxonomy of the form and function of primary care services in or alongside emergency departments: concepts paper JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 625 OP 630 DO 10.1136/emermed-2018-208305 VO 36 IS 10 A1 Alison Cooper A1 Michelle Edwards A1 Janet Brandling A1 Andrew Carson-Stevens A1 Matthew Cooke A1 Freya Davies A1 Thomas Hughes A1 Katherine Morton A1 Aloysius Siriwardena A1 Sarah Voss A1 Jonathan Benger A1 Adrian Edwards YR 2019 UL http://emj.bmj.com/content/36/10/625.abstract AB Primary care services in or alongside emergency departments look and function differently and are described using inconsistent terminology. Research to determine effectiveness of these models is hampered by outdated classification systems, limiting the opportunity for data synthesis to draw conclusions and inform decision-making and policy. We used findings from a literature review, a national survey of Type 1 emergency departments in England and Wales, staff interviews, other routine data sources and discussions from two stakeholder events to inform the taxonomy. We categorised the forms inside or outside the emergency department: inside primary care services may be integrated with emergency department patient flow or may run parallel to that activity; outside services may be offered on site or off site. We then describe a conceptual spectrum of integration: identifying constructs that influence how the services function—from being closer to an emergency medicine service or to usual primary care. This taxonomy provides a basis for future evaluation of service models that will comprise the evidence base to inform policy-making in this domain. Commissioners and service providers can consider these constructs in characterising and designing services depending on local circumstances and context.