["Assessment, Performed": "Previous Receipt of Influenza Vaccine"]

Data elements that meet criteria using this datatype should document completion of the assessment indicated by the QDM category and its corresponding value set.

Timing:

• relevant dateTime references timing for an assessment that occurs at a single point in time.
• relevant Period references a start and stop time for an assessment that occurs over a time interval
• author dateTime references the time the action was recorded.
• Refer to the eCQM expression to determine allowable timings to meet measure criterion.

Note: negation rationale indicates a one-time documentation of a reason an activity is not performed. Negation of QDM datatype-related actions for a reason always use the author dateTime attribute to reference timing and must not use relevantPeriod.