Hi team,

We would require some clarity regarding the calculation of LengthInDays in ICU location stay for measure CMS108v11 - Venous Thromboembolism Prophylaxis

One of the denominator exclusion criteria states that ;

Encounter with ICU Location Stay 1 Day or More
VTE."Encounter with Age Range and without VTE Diagnosis or Obstetrical Conditions" QualifyingEncounter
  where exists ( QualifyingEncounter.facilityLocations Location
      where Location.code in "Intensive Care Unit"
        and Global."LengthInDays" ( Location.locationPeriod ) >= 1
        and Location.locationPeriod starts during Interval[start of QualifyingEncounter.relevantPeriod, TJC."TruncateTime" ( start of QualifyingEncounter.relevantPeriod + 2 days ) )
  )

Where LengthInDays are calculated as ;

Global.LengthInDays(Value Interval<DateTime>)
difference in days between start of Value and end of Value

Consider a scenario below:

Patient A aged 20 years with

Start of InpatientEncounter.relevantPeriod = 4/11/2023 9:00

End of InpatientEncounter.relevantPeriod = 4/16/2023 10:00

having first ICU location arrival date on 4/11/2023 11:00 and location departure date on 4/12/2023 05:00 and second ICU location arrival date on 4/12/2023 08:00 and location departure date on 4/13/2023 01:00

Our question here is, in a scenario where patient has multiple ICU location stays during a single visit (e.g 18 hours for 1st ICU stay and 18 hours for second ICU stay) then how the LengthInDays would be calculated, is it 18+18 hours (i.e 36 hours)? or is it just for an individual ICU stay (as mentioned in the definition of LengthInDays)?

Kindly assist us on the above queries urgently as client deliverables are dependent upon it.