For CMS 156 v 6 Cumulative medication can be calculated by calculating frequency of medication, refill of medication and difference in the duration of medication ordered.
In QRDA document we can find
The repeatNumber is part of the Planned Medication Activity. On page 358 of the QRDA Cat1 document it says, "In a Planned Medication Activity, repeatNumber defines the number of allowed administrations. For example, a repeatNumber of "3" means that the substance can be administered up to 3 times."
Query One- is the repeat number part of attribute medication order or it is used with the attribute Medication administered?
Query two- What will be the cumulative of the medication ordered if the frequency is 7 days on startdate 1 jan 2018 1 pm and enddate 1 jan 2018 2 pm and repeatnumber is 1. what will be the cumulative duration will it be 7 days or will be 14 days?