description: Proposed constraints and extensions on the AllergyIntolerance Resource
package_name: OntarioacCDRFHIRImplementationGuide-0.10.00
derivation: constraint
name: CDRAllergyIntolerance
type: AllergyIntolerance
elements:
  patient:
    type: Reference
    mustSupport: true
    refers: ['http://ontariohealth.ca/fhir/StructureDefinition/ca-on-accdr-profile-Patient']
    index: 17
  onset:
    choices: []
    index: 20
    slicing:
      discriminator:
      - {path: $this, type: type}
      min: null
      slices:
        onsetDateTime:
          match: {}
          schema:
            mustSupport: true
            choices: [onsetDateTime]
            index: 22
  criticality: {mustSupport: true, index: 8}
  clinicalStatus: {mustSupport: true, isModifierReason: This element is labeled as a modifier because the status contains the codes refuted and entered-in-error that mark the AllergyIntolerance as not currently valid., index: 4}
  meta:
    index: 0
    elements:
      profile:
        pattern: {type: Canonical, value: 'http://ontariohealth.ca/fhir/StructureDefinition/ca-on-accdr-profile-AllergyIntolerance'}
        index: 1
    required: [profile]
  encounter:
    type: Reference
    mustSupport: true
    refers: ['http://ontariohealth.ca/fhir/StructureDefinition/ca-on-accdr-profile-Encounter']
    index: 18
  type: {mustSupport: true, index: 7}
  asserter:
    type: Reference
    refers: ['http://ontariohealth.ca/fhir/StructureDefinition/ca-on-accdr-practitioner', 'http://ontariohealth.ca/fhir/StructureDefinition/ca-on-accdr-profile-Patient']
    index: 25
  contained: {mustSupport: true, index: 2}
  recorder:
    type: Reference
    refers: ['http://ontariohealth.ca/fhir/StructureDefinition/ca-on-accdr-practitioner']
    index: 24
  code:
    binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/uv/ips/ValueSet/allergy-intolerance-substance-condition-gps-uv-ips'}
    constraint:
      ca-baseline-allergy: {human: AllergyIntolerance.verificationStatus SHALL be present if AllergyIntolerance.code represents NullFlavor concept, source: 'http://hl7.org/fhir/ca/baseline/StructureDefinition/profile-allergyintolerance', severity: warning, expression: 'AllergyIntolerance.code.coding.where(system = ''https://fhir.infoway-inforoute.ca/ValueSet/NullFlavor'').exists() or AllergyIntolerance.verificationStatus.exists()'}
    mustSupport: true
    index: 9
    elements:
      coding:
        mustSupport: true
        index: 10
        slicing:
          rules: closed
          discriminator:
          - {path: system, type: value}
          min: null
          slices:
            NotAsked:
              match: {system: 'http://hl7.org/fhir/v3/NullFlavor'}
              schema:
                constraint:
                  ca-baseline-allergy-notasked: {human: 'if AllergyIntolerance.code is a NullFlavor value, then AllergyIntolerance.clinicalStatus, AllergyIntolerance.verificationStatus, AllergyIntolerance.type, AllergyIntolerance.category, AllergyIntolerance.criticality SHALL NOT be present', source: 'http://hl7.org/fhir/ca/baseline/StructureDefinition/profile-allergyintolerance', severity: error, expression: 'AllergyIntolerance.code.coding.where(system = ''https://fhir.infoway-inforoute.ca/ValueSet/NullFlavor'').exists() implies (AllergyIntolerance.verificationStatus.exists().not() and AllergyIntolerance.type.exists().not() and AllergyIntolerance.category.exists().not() and AllergyIntolerance.criticality.exists().not())'}
                short: Code for NOT asked or NOT possible to obtain information about allergy or intolerance
                binding: {strength: preferred, valueSet: 'https://fhir.infoway-inforoute.ca/ValueSet/NullFlavor'}
                index: 11
                elements:
                  system:
                    pattern: {type: Uri, value: 'http://hl7.org/fhir/v3/NullFlavor'}
                    index: 12
                  code: {index: 13}
                required: [system, code]
            SnomedAllergyOrNoAllergy:
              match: {system: 'http://snomed.info/sct'}
              schema:
                short: Code when a patient has been asked and has indicated no history of allergies or intolerance
                binding: {strength: required, valueSet: 'http://snomed.info/sct'}
                constraint:
                  ca-baseline-allergy-noallergy: {human: 'if AllergyIntolerance.code is ''716186003'' No known allergy, then AllergyIntolerance.verificationStatus SHALL be one of the following: confirmed | refuted | entered-in-error', source: 'http://hl7.org/fhir/ca/baseline/StructureDefinition/profile-allergyintolerance', severity: warning, expression: 'AllergyIntolerance.code.coding.where(system = ''http://snomed.info/sct'' and code = ''716186003'').exists() and AllergyIntolerance.verificationStatus.coding.where(code = ''unconfirmed'').empty()'}
                index: 14
                elements:
                  system:
                    pattern: {type: Uri, value: 'http://snomed.info/sct'}
                    index: 15
                  code: {index: 16}
                required: [system, code]
  identifier: {mustSupport: true, index: 3}
  onsetDateTime:
    type: dateTime
    mustSupport: true
    choiceOf: onset
    index: 23
    slicing:
      slices:
        onsetDateTime:
          match: {}
          schema: {type: dateTime, mustSupport: true, choiceOf: onset, index: 23}
  verificationStatus:
    mustSupport: true
    index: 5
    elements:
      coding: {mustSupport: true, index: 6}
  reaction:
    mustSupport: true
    index: 26
    elements:
      manifestation:
        binding: {strength: required, valueSet: 'http://hl7.org/fhir/uv/ips/ValueSet/allergy-reaction-gps-uv-ips'}
        mustSupport: true
        index: 27
      severity: {mustSupport: true, index: 28}
      exposureRoute:
        binding: {strength: preferred, valueSet: 'https://fhir.infoway-inforoute.ca/ValueSet/RouteOfAdministration'}
        index: 29
package_version: 0.1.0
class: profile
kind: resource
url: http://ontariohealth.ca/fhir/StructureDefinition/ca-on-accdr-profile-AllergyIntolerance
base: http://hl7.org/fhir/StructureDefinition/AllergyIntolerance
version: 0.0.3
required: [meta, code]