A record of a device being used by a patient where the record is the result of a report from the patient or another clinician. A record of a device being used by a patient where the record is the result of a report from the patient or another clinician. If the element is present, it must have either a @value, an @id, or extensions An external identifier for this statement such as an IRI. A code representing the patient or other source's judgment about the state of the device used that this statement is about. Generally this will be active or completed. The patient who used the device. The time period over which the device was used. How often the device was used. The time at which the statement was made/recorded. Who reported the device was being used by the patient. The details of the device used. Reason or justification for the use of the device. Indicates the site on the subject's body where the device was used ( i.e. the target site). Details about the device statement that were not represented at all or sufficiently in one of the attributes provided in a class. These may include for example a comment, an instruction, or a note associated with the statement. Active Completed Entered in Error Intended Stopped On Hold A coded concept indicating the current status of a the Device Usage If the element is present, it must have either a @value, an @id, or extensions