A record of a relationship between a device and the entity to which it is directly associated. A record of a relationship between a device and the entity to which it is directly associated. If the element is present, it must have either a @value, an @id, or extensions Instance identifier. Reference to the device that is being associated. Describes the relationship between the device and subject. Indicates the state of the Device association. Administrative or record-management reason for the current DeviceAssociation record status. State of the relationship between the device and subject. The entity that is the direct target of the device association. This may be a person, role, organization, location, group, care team, or another device. The subject is not necessarily the patient or ultimate beneficiary of the association. The nature of the association is described by relationship. One or more care, organizational, or operational contexts for which the device association exists or is interpreted. Use focus when the subject alone does not fully explain the purpose or context of the association, such as when a device is associated with one entity but supports, monitors, protects, or benefits another. Do not use focus to identify performers, installers, maintainers, or operators merely because they performed an activity involving the device. When different focuses require different relationships, periods, statuses, or traceability, use separate DeviceAssociation instances. Current anatomical location(s) of the device in/on subject. Begin and end dates and times for the device association. Active Inactive Entered in Error Unknown A coded concept specifying the state of the device association. If the element is present, it must have either a @value, an @id, or extensions