QDM Datatype (QDM Version 5.3):
Data elements that meet criteria using this datatype should document the Allergy or intolerance and its corresponding value set.
Timing: The Prevalence Period references the time from the onset date to the abatement date.
Data Elements defined by this QDM Datatype:
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.
Prevalance Period is the time from onset dateTime to abatement dateTime.
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.).