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Performance/Reporting Period
QDM Datatype (QDM Version 5.4):

Data elements that meet criteria using this datatype should document the Condition/Diagnosis/Problem and its corresponding value set. The onset dateTime corresponds to the implicit start dateTime of the datatype and the abatement dateTime corresponds to the implicit stop dateTime of the datatype. If the abatement dateTime is not present, then the diagnosis is considered to still be active. When this datatype is used with timing relationships, the criterion is looking for an active diagnosis for the time frame indicated by the timing relationships.

Timing: The Prevalence Period references the time from the onset date to the abatement date.

Data Elements defined by this QDM Datatype:
QDM Attributes

Anatomical Location Site

The anatomical site or structure where the diagnosis/problem manifests itself (a). The anatomical site or structure that is the focus of the action represented by the datatype (b).

Author dateTime

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.

Prevalence Period

Prevalance Period is the time from onset dateTime to abatement dateTime.


Indicates the intensity of the specified datatype (e.g., persistent, moderate, or severe).
Last Updated: Oct 17, 2019