library RiskAdjustment_FHIR2 version '0.0.001'
using FHIR version '1.0.2'
include FHIRHelpers version '1.0.2' called FHIRHelpers
include SupplementalDataElements_FHIR2 version '1.0.0' called SDE
valueset "Serum Albumin": 'http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1029.60'
valueset "Cirrhosis or other liver disease": 'http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1029.63'
valueset "Encounter Inpatient": 'http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.3.666.5.307'
valueset "CABG_Open and Endoscopic": 'http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1029.39'
valueset "Bilirubin": 'http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.3.666.5.2400'
parameter "Measurement Period" Interval<DateTime>
context Patient
define "SDE Ethnicity":
SDE."SDE Ethnicity"
define "SDE Payer":
SDE."SDE Payer"
define "SDE Race":
SDE."SDE Race"
define "SDE Sex":
SDE."SDE Sex"
define "Encounter Inpatient 365": ["Encounter": "Encounter Inpatient"] E
where FHIRHelpers.ToQuantity(E.length) <= 365 days // Shouldn't need the ToQuantity, need a FHIR.Duration conversion
and E.period ends during "Measurement Period"
and E.status.value in {'finished'}
define "CABG_Open and Endoscopic During Encounter": ["Procedure": "CABG_Open and Endoscopic"] P
with "Encounter Inpatient 365" E
such that P.performedPeriod starts during E.period
and P.status.value in {'completed'}
define "Hepatic Failure":
exists ("Cirrhosis Dx")
and exists ("Bilirubin Test")
and exists ("Serum Albumin Test")
define "Cirrhosis Dx": ["Condition": "Cirrhosis or other liver disease"] D
with "CABG_Open and Endoscopic During Encounter" C
such that D.onsetDateTime.value before start of C.performedPeriod
such that Coalesce (D.onsetDateTime.value, start of ToInterval(D.onsetPeriod)) before start of ToInterval(C.performedPeriod)
define "Bilirubin Test":
["Observation": "Bilirubin"] L
with "CABG_Open and Endoscopic During Encounter" C
such that L.effectiveDateTime.value before start of C.performedPeriod
such that Coalesce (L.effectiveDateTime.value, start of ToInterval(L.effectivePeriod)) starts before start of ToInterval(C.performedPeriod)
with "Encounter Inpatient 365" E
such that L.effectiveDateTime.value during E.period
where L.valueQuantity > 2 'mg/dL'
and L.status.value in {'final', 'amended', 'corrected', 'appended'}
define "Serum Albumin Test":
["Observation": "Serum Albumin"] L
with "CABG_Open and Endoscopic During Encounter" C
such that L.effectiveDateTime.value before start of C.performedPeriod
with "Encounter Inpatient 365" E
such that L.effectiveDateTime.value during E.period
where L.valueQuantity < 3.5 'g/dL'
and L.status.value in {'final', 'amended', 'corrected', 'appended'}
define "Initial Population": "Encounter Inpatient 365"
define "Denominator": "Initial Population"
define "Numerator": "CABG_Open and Endoscopic During Encounter"
