Chronic Disease Surveillance
0.1.0 - CI Build International flag

Chronic Disease Surveillance, published by Clinical Quality Framework. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/cqframework/aphl-chronic-ig/ and changes regularly. See the Directory of published versions

Library: Seen Patients (Experimental)

Official URL: http://fhir.org/guides/cqf/aphl/chronic-ds/Library/SeenPatients Version: 0.1.0
Active as of 2025-12-18 Computable Name: SeenPatients
Title: Seen Patients
Id: SeenPatients
Version: 0.1.0
Url: Seen Patients
Experimental: true
Type:

system: http://terminology.hl7.org/CodeSystem/library-type

code: logic-library

Date: 2025-12-18 18:12:52+0000
Publisher: Clinical Quality Framework
Jurisdiction: 001
Related Artifacts:

Dependencies

  • http://fhir.org/guides/cqf/aphl/chronic-ds/Library/FHIRHelpers|4.1.000
  • http://fhir.org/guides/cqf/aphl/chronic-ds/Library/SupplementalDataElementsFHIR4|2.0.000
  • http://fhir.org/guides/cqf/aphl/chronic-ds/Library/SurveillanceDataElementsFHIR4|1.0.000
Parameters:
NameTypeMinMaxIn/Out
Measurement PeriodPeriod01In
PatientPatient01Out
SDE EthnicityCoding0*Out
SDE PayerResource0*Out
SDE RaceCoding0*Out
SDE SexCoding01Out
SDE Ageinteger01Out
Stratifier Age GroupCoding01Out
SDE State of Residencestring01Out
SDE Postal Code of Residencestring01Out
SDE Food Insecurity Risk StatusCodeableConcept01Out
Initial Populationboolean01Out
Data Requirements:
TypeProfileMSCode Filter
Patient http://hl7.org/fhir/StructureDefinition/Patient
Encounter http://hl7.org/fhir/StructureDefinition/Encounter ;
Content: text/cql
library SeenPatients version '0.1.0'

using FHIR version '4.0.1'

include FHIRHelpers version '4.1.000'
include SupplementalDataElementsFHIR4 version '2.0.000' called SDE
include SurveillanceDataElementsFHIR4 version '1.0.000' called SurveillanceDataElements

parameter "Measurement Period" default Interval[@2025-01-01T00:00:00.0, @2026-01-01T00:00:00.0)

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 "SDE Age":
  SurveillanceDataElements."Age"

define "Stratifier Age Group":
  SurveillanceDataElements."Age Group"

define "SDE State of Residence":
  SurveillanceDataElements."State of Residence"

define "SDE Postal Code of Residence":
  SurveillanceDataElements."Postal Code of Residence"

define "SDE Food Insecurity Risk Status":
  SurveillanceDataElements."Food Insecurity Risk Status"

define "Initial Population":
  exists (
    [Encounter] E
      where E.period ends during "Measurement Period"
  )
Content: application/elm+xml
Encoded data (20964 characters)
Content: application/elm+json
Encoded data (37224 characters)