CMS832 Timing for Creatinine in Initial Population Confusing

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    • Type: Hosp Inpt eCQMs - Hospital Inpatient eCQMs
    • Resolution: Answered
    • Priority: Moderate
    • Component/s: None
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      Thank you for your inquiry regarding CMS 832v2: Acute Kidney Injury. In this measure,

      The inpatient hospitalization includes time in the emergency department (ED) and in observation when the transition between these encounters (if they exist) and the inpatient encounter are within an hour or less of each other. Within the logic, the “HospitalizationWithObservation” function captures the total interval for a hospitalization, including any immediate prior observation stays and ED visits. The function calculates this interval from the earliest starting point (either the ED visit or observation stay) to the end of the hospitalization. The intent of the “Inpatient Encounter with Creatinine" definition is to identify hospitalizations with a length of stay greater than 48 hours during which a creatinine test with a result was performed at least 48 hours after the start of the hospitalization period.
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      Thank you for your inquiry regarding CMS 832v2: Acute Kidney Injury. In this measure, The inpatient hospitalization includes time in the emergency department (ED) and in observation when the transition between these encounters (if they exist) and the inpatient encounter are within an hour or less of each other. Within the logic, the “HospitalizationWithObservation” function captures the total interval for a hospitalization, including any immediate prior observation stays and ED visits. The function calculates this interval from the earliest starting point (either the ED visit or observation stay) to the end of the hospitalization. The intent of the “Inpatient Encounter with Creatinine" definition is to identify hospitalizations with a length of stay greater than 48 hours during which a creatinine test with a result was performed at least 48 hours after the start of the hospitalization period.
    • CMS0832v1
    • Unsure of meaning of Hospitalization Period

      This logic goes around and around. I believe for the Initial Population and Denominator it means: Creatinine Laboratory Test Performed Where Relevant Date/Time (If Null Use Relevant Period) Start is From the Start of the Inpatient Encounter + 48 Hours to the End of the Inpatient Encounter.

      Can you please clarify the intent of the following logic?

      This is the logic that is confusing.  Elsewhere the Encounter48Hours is defined as an Inpatient Encounter with length of stay > 48 Hours. But then the Hosptialization Period, I cannot find a clear definition for.

        ["Laboratory Test, Performed": "Creatinine Mass Per Volume"] CreatinineTest
        let HospitalizationPeriod: Global."HospitalizationWithObservation" ( Encounter48Hours ),
        CreatinineTestTime: Global."EarliestOf" ( CreatinineTest.relevantDatetime, CreatinineTest.relevantPeriod )
        where CreatinineTest.result is not null
          and CreatinineTestTime during Interval[start of HospitalizationPeriod + 48 hours, end of HospitalizationPeriod]
        return Encounter48Hours

            Assignee:
            Joelencia Leflore
            Reporter:
            Margaret Butler (Inactive)
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