Proportion

define "Initial Population":
	Patient.gender = 'female'
		and Global."CalendarAgeInYearsAt"(FHIRHelpers.ToDate(Patient.birthDate), start of "Measurement Period") in Interval[23, 64]
		and exists AdultOutpatientEncounters."Qualifying Encounters"

//    and NoCervixBirth.clinicalStatus ~ ToConcept(Global."active") because this is an excluion, all statuses are acceptable
define "Numerator":
	exists "Cervical Cytology Within 3 Years"
		or exists "HPV Test Within 5 Years for Women Age 30 and Older"

define "Denominator":
	"Initial Population"

define "Denominator Exclusion":
	Hospice."Has Hospice"
		or exists "Absence of Cervix"

define "SDE Sex":
  case
      when Patient.gender = 'male' then Code { code: 'M', system: 'http://hl7.org/fhir/v3/AdministrativeGender', display: 'Male' }
      when Patient.gender = 'female' then Code { code: 'F', system: 'http://hl7.org/fhir/v3/AdministrativeGender', display: 'Female' }
      else null
    end

define "SDE Sex":
  SDE."SDE Sex"

define "Cervical Cytology Within 3 Years":
	[Observation: "Pap Test"] CervicalCytology
		where CervicalCytology.value is not null
			and CervicalCytology.status in { 'final', 'amended', 'corrected', 'preliminary' }
		  and Global."Normalize Interval"(CervicalCytology.effective) ends 3 years or less on or before end of "Measurement Period"

define "HPV Test Within 5 Years for Women Age 30 and Older":
	[Observation: "HPV Test"] HPVTest
      where HPVTest.value is not null
        and HPVTest.status in { 'final', 'amended', 'corrected', 'preliminary' }
        and  Global."CalendarAgeInYearsAt"(FHIRHelpers.ToDate(Patient.birthDate), start of Global."Normalize Interval"(HPVTest.effective))>= 30
        and Global."Normalize Interval"(HPVTest.effective) ends 5 years or less on or before end of "Measurement Period"

//    and NoCervixBirth.clinicalStatus ~ ToConcept(Global."active") because this is an excluion, all statuses are acceptable
define "Numerator":
	exists "Cervical Cytology Within 3 Years"
		or exists "HPV Test Within 5 Years for Women Age 30 and Older"

define "Qualifying Encounters":
	(
    [Encounter: "Office Visit"]
  		union [Encounter: "Annual Wellness Visit"]
  		union [Encounter: "Preventive Care Services - Established Office Visit, 18 and Up"]
  		union [Encounter: "Preventive Care Services-Initial Office Visit, 18 and Up"]
  		union [Encounter: "Home Healthcare Services"]
  ) ValidEncounter
		where ValidEncounter.period during "Measurement Period"
  		and ValidEncounter.status  = 'finished'

define "Initial Population":
	Patient.gender = 'female'
		and Global."CalendarAgeInYearsAt"(FHIRHelpers.ToDate(Patient.birthDate), start of "Measurement Period") in Interval[23, 64]
		and exists AdultOutpatientEncounters."Qualifying Encounters"

define "Denominator":
	"Initial Population"

define "SDE Payer":
  [Coverage: type in "Payer"] Payer
        return {
          code: Payer.type,
          period: Payer.period
        }

define "SDE Payer":
  SDE."SDE Payer"

define "SDE Ethnicity":
  (flatten (
      Patient.extension Extension
        where Extension.url = 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity'
          return Extension.extension
    )) E
      where E.url = 'ombCategory'
        or E.url = 'detailed'
      return E.value as Coding

define "SDE Ethnicity":
  SDE."SDE Ethnicity"

define "Has Hospice":
	exists (
    [Encounter: "Encounter Inpatient"] DischargeHospice
			where DischargeHospice.status = 'finished'
		    and (
	        DischargeHospice.hospitalization.dischargeDisposition ~ "Discharge to home for hospice care (procedure)"
				    or DischargeHospice.hospitalization.dischargeDisposition ~ "Discharge to healthcare facility for hospice care (procedure)"
	    	)
				and DischargeHospice.period ends during "Measurement Period"
	)
    or exists (
      [ServiceRequest: "Hospice care ambulatory"] HospiceOrder
        where HospiceOrder.intent = 'order'
            and HospiceOrder.authoredOn in "Measurement Period"
    )
    or exists (
      [Procedure: "Hospice care ambulatory"] HospicePerformed
        where HospicePerformed.status = 'completed'
          and Global."Normalize Interval"(HospicePerformed.performed) overlaps "Measurement Period"
    )

define "Absence of Cervix":
  ([Procedure: "Hysterectomy with No Residual Cervix"] NoCervixProcedure
   where Global."Normalize Interval"(NoCervixProcedure.performed) ends on or before end of "Measurement Period"
     and NoCervixProcedure.status = 'completed'
     )
  union [Condition : "Congenital absence of cervix (disorder)"] NoCervixBirth
		where Global."Normalize Interval"(NoCervixBirth.onset) starts on or before end of "Measurement Period"

define "Denominator Exclusion":
	Hospice."Has Hospice"
		or exists "Absence of Cervix"

define "SDE Race":
  (flatten (
      Patient.extension Extension
        where Extension.url = 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-race'
          return Extension.extension
    )) E
      where E.url = 'ombCategory'
        or E.url = 'detailed'
      return E.value as Coding

define "SDE Race":
  SDE."SDE Race"