Spine supports the IT infrastructure for health and social care in England, joining together over 44,000 healthcare IT systems in 26,000 organisations.
Spine allows information to be shared securely through national services such as the Electronic Prescription Service, the Personal Demographics Service, the Summary Care Record and the e-Referral Service.
It currently handles over 1.3 billion messages a month and at peak times is processing more than 3,200 messages a second.
NHS Digital develops and maintains Spine. Recent developments include enabling the sharing of child protection information via the Child Protection Information System (CP-IS), and developing ways to allow easier access to demographic data through the Spine Mini Service.