A collection of encounters that can be aggregated based on a common clinically relevant factor such as the provider, diagnosis, health factor, or long-term problem. "...a Service Episode is the context in which the treatment or management of an arbitrary subset of a Patient s medical conditions occurs. The definition of the start time, stop time, and included events of a Service Episode is entirely arbitrary; it may include a single outpatient visit or a hospitalization, or extend over significant period of time, e.g., the duration of a pregnancy, or an oncology treatment regimen, or a cardiac episode from infarction through rehabilitation. A Service Episode may involve one or more Healthcare Organizations." - HL7 Version 2.8, PV1-53