Diagnostic services are of great importance in the NHS because, when used correctly, they support or rule out potential diagnoses, and underpin the effective and efficient management of patient pathways. Many diagnostic tests and investigations are embedded within complex care pathways, which means NHS commissioners face the difficult task of understanding what is required, and from whom, and to assess critically whether what is being provided will lead to high-quality outcomes, and meet peoples’ needs and expectations. The data included in the Diagnostic Services Atlas will
facilitate effective commissioning processes to build a system for improving patient experience.