Category Standard Organisation Health Level Seven (HL7) Type Standard Version 2 Access Open Status Active Created Aug-19 This specification provides a standard way for clinical information systems to request context-specific clinical knowledge from online resources. Known as an ‘infobutton’, this type of knowledge retrieval tool anticipates clinicians and patients’ questions based on the clinical context and provides links to resources that may answer these questions. This approach has been widely adopted to support clinicians to answer clinical questions that arise in the course of care.