"Adverse Event"

The time the data element was entered into the clinical software. Note, some datatypes include both Relevant Time and Author dateTime attributes. The purpose is to accommodate Author dateTime if the actual start and stop times are not available when evaluating for feasibility, and also to allow specification of a time for Negation Rationale.

The particular locations in a facility in which the diagnostic study or encounter occurs or occurred. Examples include, but are not limited to, intensive care units (ICUs), non- ICUs, burn critical-care unit, neonatal ICU, and respiratory-care unit. Each Encounter, Performed may have 1 or more locations. For example, a patient treated in multiple locations during an individual encounter might be expressed as: Encounter, Performed: Inpatient Admission, ICU (location period), Non-ICU Admission (location period), Rehab (location period). Facility Location (singular) is used for Adverse Event; Diagnostic Study, Performed; Encounter, Order; Encounter, Recommended.

Relevant Period addresses the time between the start of an action to the end of an action. Each datatype using relevant period defines specific definitions for the start and stop time for the action listed.

Indicates the intensity of the specified datatype (e.g., persistent, moderate, or severe).

The characterization of the reaction (e.g., hypersensitivity, rash, gastroenteric symptoms, etc.).