Functional Status Assessment for Total Knee Replacement

( ["Assessment, Performed": "Knee Injury and Osteoarthritis Outcome Score for Joint Replacement [KOOSJR]"] KOOSJr
		where KOOSJr.result is not null
)
	union "KOOS Total Assessment"
	union "VR12 Total Assessment"
	union "PROMIS10 Total Assessment"

["Diagnosis": "Severe dementia (disorder)"] Dementia
	where Dementia.prevalencePeriod overlaps "Measurement Period"

"Initial Population"

Hospice."Has Hospice"
	or exists "Total Knee Arthroplasty with 2 or More Lower Body Fractures"
	or exists "Dementia Diagnosis"

exists ( ["Encounter, Performed": "Encounter Inpatient"] DischargeHospice
		where ( DischargeHospice.dischargeDisposition as Code ~ "Discharge to home for hospice care (procedure)"
				or DischargeHospice.dischargeDisposition as Code ~ "Discharge to healthcare facility for hospice care (procedure)"
		)
			and DischargeHospice.relevantPeriod ends during "Measurement Period"
)
	or exists ( ["Intervention, Order": "Hospice care ambulatory"] HospiceOrder
			where HospiceOrder.authorDatetime during "Measurement Period"
	)
	or exists ( ["Intervention, Performed": "Hospice care ambulatory"] HospicePerformed
			where HospicePerformed.relevantPeriod overlaps "Measurement Period"
	)

exists ( "Total Knee Arthroplasty Procedure" )
	and exists ( "Qualifying Encounters" )
	and exists ( ["Patient Characteristic Birthdate"] Birthdate
			where Global."CalendarAgeInYearsAt"(Birthdate.birthDatetime, start of "Measurement Period")>= 19
	)

"Completed Assessment" KneeAssessment
	with "Total Knee Arthroplasty with Initial Assessment" TotalKnee
		such that KneeAssessment.authorDatetime 270 days or more after day of end of TotalKnee.relevantPeriod
			and KneeAssessment.authorDatetime 365 days or less after day of end of TotalKnee.relevantPeriod

["Assessment, Performed": "Quality of life score [KOOS]"] KOOSLifeQuality
	with ["Assessment, Performed": "Knee Dysfunction and Osteoarthritis Outcome Score [KOOS] Sport Recreation Score"] KOOSSport
		such that KOOSLifeQuality.authorDatetime same day as KOOSSport.authorDatetime
			and KOOSSport.result is not null
	with ["Assessment, Performed": "Knee Dysfunction and Osteoarthritis Outcome Score [KOOS] Activities of Daily Living Score"] KOOSActivityScore
		such that KOOSLifeQuality.authorDatetime same day as KOOSActivityScore.authorDatetime
			and KOOSActivityScore.result is not null
	with ["Assessment, Performed": "Knee Dysfunction and Osteoarthritis Outcome Score [KOOS] Symptoms Score"] KOOSSymptoms
		such that KOOSLifeQuality.authorDatetime same day as KOOSSymptoms.authorDatetime
			and KOOSSymptoms.result is not null
	with ["Assessment, Performed": "Knee Dysfunction and Osteoarthritis Outcome Score [KOOS] Pain Score"] KOOSPain
		such that KOOSLifeQuality.authorDatetime same day as KOOSPain.authorDatetime
			and KOOSPain.result is not null
	where KOOSLifeQuality.result is not null

exists ( "Total Knee Arthroplasty with Initial Assessment" )
	and exists ( "Knee Assessment 270 to 365 Days after Total Knee Arthroplasty Procedure" )

["Assessment, Performed": "PROMIS 10 Global Mental Health Score"] Promis10MentalScore
	with ["Assessment, Performed": "PROMIS 10 Global Physical Health Score"] Promis10PhysicalScore
		such that Promis10MentalScore.authorDatetime same day as Promis10PhysicalScore.authorDatetime
			and Promis10PhysicalScore.result is not null
	where Promis10MentalScore.result is not null

( ["Encounter, Performed": "Outpatient Consultation"]
	union ["Encounter, Performed": "Office Visit"]
	union ["Encounter, Performed": "Postoperative follow-up visit, normally included in the surgical package, to indicate that an evaluation and management service was performed during a postoperative period for a reason(s) related to the original procedure"] ) QualifyingEncounter
	where QualifyingEncounter.relevantPeriod during "Measurement Period"

["Patient Characteristic Ethnicity": "Ethnicity"]

["Patient Characteristic Payer": "Payer"]

["Patient Characteristic Race": "Race"]

["Patient Characteristic Sex": "ONC Administrative Sex"] 

["Procedure, Performed": "Primary TKA Procedure"] TKAProcedure
	where TKAProcedure.relevantPeriod starts 12 months or less before start of "Measurement Period"

"Total Knee Arthroplasty Procedure" TKAProcedure
	where Count(["Diagnosis": "Fracture - Lower Body"] LowerBodyFracture
			where LowerBodyFracture.prevalencePeriod starts less than 1 day on or before TKAProcedure.relevantPeriod
	)>= 2

"Total Knee Arthroplasty Procedure" TotalKnee
	with "Completed Assessment" KneeAssessment
		such that TotalKnee.relevantPeriod starts 90 days or less on or after KneeAssessment.authorDatetime

["Assessment, Performed": "VR12 Mental Component T Score"] VR12MentalScore
	with ["Assessment, Performed": "VR12 Physical Component T Score"] VR12PhysicalScore
		such that VR12MentalScore.authorDatetime same day as VR12PhysicalScore.authorDatetime
			and VR12PhysicalScore.result is not null
	where VR12MentalScore.result is not null

years between ToDate(BirthDateTime)and ToDate(AsOf)

DateTime(year from Value, month from Value, day from Value, 0, 0, 0, 0, timezone from Value)