DIGITAL IMAGING AND COMMUNICATION IN MEDICINE. Diagram represents D:COMI extended doenain, abstract description of the real world objects insed in the Modalify-1S Interface, Modality as a pece of imaging equipment, e.g coenputred tomography (CT) or ultrasound (US). A Patient is a human or an animal receiving, or registered to recelve, healthcare services, or is the subject of rescareh stedies. A Clinical Document is a part of the medical recoed of a patient (Note: In elinicul docuanent eneate a date data typel. It is a docunsentation of. clinical observations and services provided to the patient. A Service Episode is a collection of events, context in which the treatment or manapement of an abbitrary suboet of a Patient's medical coeditions occurs. Service episode is estirely arbitrary; it may include a single outpatient visit of a hospoitalization, or extend over signifleant period of time, e.g.4 the duration of a pregnancy, or an cocolosy tratment regimen. A service egrisode may involve one or moce Healtheare Organizations (administrative entities that authorise Healtheare Providers to peovide services within their legal administrathe domain, e.g. hospitwls, private physicion's offices, maltrispecialty clinics, marsing homes|Take services as an enumerated diata fype and inchile the abooe given domain as surhaes,). Visit is a past of service eposode, collection of erents that fall usder the accoustability of a particular Healthcare Organization in a single facility. A visit may be associated with one or more physical locations (eg. different rooms, departments, of buildings) within the same farility. An Imaging Service Request is a set of one or more Requested Procedures selected from a liat of Procedure Types. An Imaging Service Request an nabmitted by one authoriaed imaging service reqoester to ane authorized imaging service provider in the content of one Service Episode. An Imaging Service Request may be associated with one or more Visits that occur within the same Service Fpisode- A modality Scheduled Procedure Step is an arbitrarily defined scheduled unit of service, that is spexified thy the Procedure Plan for a Requested Procedure. It prescribes Protocol which may be identified by one or more Protocol Codes. A modality Scheduled Procrdure Step involves equipment (e.g. imaging equipment, surgical equipment, ete), human resources, supplics, location, and time. A Modality Performedl Procedure Step is an arbitrarily defined unit of acrvice that has actually been performed (not just seheduled). It contains references to wero or more Series of Images