FHIRHelpers
type: Library
node role: treeRoot
id:
  v: FHIRHelpers
text:
  status:
    v: extensions
  div:
    v: Id: FHIRHelpers Url: FHIR Helpers Version: 4.0.1 Name: FHIRHelpers Title: FHIR Helpers Status: draft Type: system: http://terminology.hl7.org/CodeSystem/library-type code: logic-library Date: 2025-12-23 16:52:00+0000 Publisher: Centers for Disease Control and Prevention (CDC) Related Artifacts: Dependencies http://fhir.org/guides/cqf/common/Library/FHIR-ModelInfo|4.0.1 Content: text/cql library FHIRHelpers version '4.0.1' using FHIR version '4.0.1' define function ToInterval(period FHIR.Period): if period is null then null else if period."start" is null then Interval(period."start".value, period."end".value] else Interval[period."start".value, period."end".value] define function ToCalendarUnit(unit System.String): case unit when 'ms' then 'millisecond' when 's' then 'second' when 'min' then 'minute' when 'h' then 'hour' when 'd' then 'day' when 'wk' then 'week' when 'mo' then 'month' when 'a' then 'year' else unit end define function ToQuantity(quantity FHIR.Quantity): case when quantity is null then null when quantity.value is null then null when quantity.comparator is not null then Message(null, true, 'FHIRHelpers.ToQuantity.ComparatorQuantityNotSupported', 'Error', 'FHIR Quantity value has a comparator and cannot be converted to a System.Quantity value.') when quantity.system is null or quantity.system.value = 'http://unitsofmeasure.org' or quantity.system.value = 'http://hl7.org/fhirpath/CodeSystem/calendar-units' then System.Quantity { value: quantity.value.value, unit: ToCalendarUnit(Coalesce(quantity.code.value, quantity.unit.value, '1')) } else Message(null, true, 'FHIRHelpers.ToQuantity.InvalidFHIRQuantity', 'Error', 'Invalid FHIR Quantity code: ' & quantity.unit.value & ' (' & quantity.system.value & '|' & quantity.code.value & ')') end define function ToQuantityIgnoringComparator(quantity FHIR.Quantity): case when quantity is null then null when quantity.value is null then null when quantity.system is null or quantity.system.value = 'http://unitsofmeasure…
contained: Parameters
  id:
    v: options
  parameter:
    name:
      v: translatorVersion
    value: String
      v: 3.25.0
  parameter:
    name:
      v: option
    value: String
      v: EnableAnnotations
  parameter:
    name:
      v: option
    value: String
      v: EnableLocators
  parameter:
    name:
      v: option
    value: String
      v: DisableListDemotion
  parameter:
    name:
      v: option
    value: String
      v: DisableListPromotion
  parameter:
    name:
      v: format
    value: String
      v: JSON
  parameter:
    name:
      v: format
    value: String
      v: XML
  parameter:
    name:
      v: analyzeDataRequirements
    value: Boolean
      v: false
  parameter:
    name:
      v: collapseDataRequirements
    value: Boolean
      v: true
  parameter:
    name:
      v: compatibilityLevel
    value: String
      v: 1.5
  parameter:
    name:
      v: enableCqlOnly
    value: Boolean
      v: false
  parameter:
    name:
      v: errorLevel
    value: String
      v: Info
  parameter:
    name:
      v: signatureLevel
    value: String
      v: Overloads
  parameter:
    name:
      v: validateUnits
    value: Boolean
      v: true
  parameter:
    name:
      v: verifyOnly
    value: Boolean
      v: false
extension:
  url:
    v: http://hl7.org/fhir/StructureDefinition/cqf-cqlOptions
    l: cqf-cqlOptions
  value: Reference
    l: options
    reference:
      v: #options
url:
  v: http://fhir.org/guides/cdc/opioid-cds/Library/FHIRHelpers
  l: FHIRHelpers
version:
  v: 4.0.1
name:
  v: FHIRHelpers
title:
  v: FHIR Helpers
status:
  v: draft
type:
  coding:
    system:
      v: http://terminology.hl7.org/CodeSystem/library-type
      l: library-type
    code:
      v: logic-library
date:
  v: 2025-12-23T16:52:00+00:00
publisher:
  v: Centers for Disease Control and Prevention (CDC)
contact:
  telecom:
    system:
      v: url
    value:
      v: https://www.cdc.gov
related artifact:
  type:
    v: depends-on
  display:
    v: FHIR model information
  resource:
    v: http://fhir.org/guides/cqf/common/Library/FHIR-ModelInfo|4.0.1
    l: http://fhir.org/guides/cqf/common/Library/FHIR-ModelInfo
content:
  content type:
    v: text/cql
content:
  content type:
    v: application/elm+xml
content:
  content type:
    v: application/elm+json