FHIR R4 Symptoms Implementation Guide
0.1.0 - ci-build International flag

FHIR R4 Symptoms Implementation Guide, published by HL7 International / Clinical Interoperability Council. 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/HL7/fhir-symptoms-ig/ and changes regularly. See the Directory of published versions

Logical Model: SymptomLogicalModel - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 1

Definitions for the SymptomLogicalModel logical model.

Guidance on how to interpret the contents of this table can be foundhere

0. SymptomLogicalModel
Definition

Details about the Symptom.


Base definition for all elements in a resource.

ShortSymptom Logical ModelBase for all elements
Control0..*
This element is affected by the following invariants: ele-1
Is Modifierfalse
Logical ModelInstances of this logical model are not marked to be the target of a Reference
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
2. SymptomLogicalModel.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
4. SymptomLogicalModel.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on SymptomLogicalModel.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 6. SymptomLogicalModel.identifier
    Definition

    A unique string that identifies this instance of a symptom

    ShortA unique string that identifies this instance of a symptom
    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control1..1
    Typestring
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    8. SymptomLogicalModel.symptomCode
    Definition

    Coded description of symptom

    ShortCoded description of symptom
    Control1..1
    TypeCodeableConcept
    10. SymptomLogicalModel.absentOrPresentFlag
    Definition

    Whether the symptom is present or absent

    ShortWhether the symptom is present or absent
    Control1..1
    Typeboolean
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    12. SymptomLogicalModel.affectedPatient
    Definition

    The patient who is experiencing the symptom

    ShortThe patient who is experiencing the symptom
    Control1..1
    TypePatient
    14. SymptomLogicalModel.reporter[x]
    Definition

    The person who is reporting the symptom information

    ShortThe person who is reporting the symptom information
    Control1..1
    TypeChoice of: Patient, RelatedPerson
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    16. SymptomLogicalModel.symptomDescription
    Definition

    Textual description of symptom as provided by patient or care team member

    ShortTextual description of symptom as provided by patient or care team member
    Control0..*
    TypeAnnotation
    18. SymptomLogicalModel.location
    Definition

    Where the patient feels the symptom in the body.

    ShortWhere the patient feels the symptom in the body.
    Control0..*
    TypeCodeableConcept
    20. SymptomLogicalModel.associatedSymptoms
    Definition

    Other symptoms associated with this symptom

    ShortOther symptoms associated with this symptom
    Control0..*
    Typehttp://hl7.org/fhir/uv/symptoms/StructureDefinition/SymptomLogicalModel
    22. SymptomLogicalModel.associatedConditions
    Definition

    Condition associated with this symptom

    ShortCondition associated with this symptom
    Control0..*
    TypeCondition
    24. SymptomLogicalModel.keyFeatures
    Definition

    The key features of the symptom

    ShortKey Features
    Control1..1
    TypeBackboneElement
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    26. SymptomLogicalModel.keyFeatures.id
    Definition

    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

    ShortUnique id for inter-element referencing
    Control0..1
    Typestring
    Is Modifierfalse
    XML FormatIn the XML format, this property is represented as an attribute.
    Summaryfalse
    28. SymptomLogicalModel.keyFeatures.extension
    Definition

    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

    ShortAdditional content defined by implementations
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 30. SymptomLogicalModel.keyFeatures.modifierExtension
      Definition

      May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

      ShortExtensions that cannot be ignored even if unrecognized
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
      Summarytrue
      Requirements

      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

      Alternate Namesextensions, user content, modifiers
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      32. SymptomLogicalModel.keyFeatures.quality
      Definition

      The patient's internal perception of the symptom.

      ShortThe patient's internal perception of the symptom.
      Control0..1
      TypeBackboneElement
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      34. SymptomLogicalModel.keyFeatures.quality.id
      Definition

      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

      ShortUnique id for inter-element referencing
      Control0..1
      Typestring
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      36. SymptomLogicalModel.keyFeatures.quality.extension
      Definition

      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

      ShortAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.quality.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 38. SymptomLogicalModel.keyFeatures.quality.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored even if unrecognized
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
        Summarytrue
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content, modifiers
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        40. SymptomLogicalModel.keyFeatures.quality.note
        Definition

        Textual description of the symptom quality

        ShortTextual description of the symptom quality
        Control0..1
        TypeAnnotation
        42. SymptomLogicalModel.keyFeatures.quality.scaleCode
        Definition

        Code for the specific scale or assessment (if any) used to determine the quality

        ShortCode for the specific scale or assessment (if any) used to determine the quality
        Control0..1
        Typecode
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        44. SymptomLogicalModel.keyFeatures.quality.value
        Definition

        Code that represents the symptom quality

        ShortCode that represents the symptom quality
        Control1..1
        TypeCodeableConcept
        46. SymptomLogicalModel.keyFeatures.severity
        Definition

        The intensity with which the patient experiences the symptom.

        ShortThe intensity with which the patient experiences the symptom.
        Control0..1
        TypeBackboneElement
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        48. SymptomLogicalModel.keyFeatures.severity.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        50. SymptomLogicalModel.keyFeatures.severity.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.severity.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 52. SymptomLogicalModel.keyFeatures.severity.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          54. SymptomLogicalModel.keyFeatures.severity.note
          Definition

          Textual description of the symptom severity

          ShortTextual description of the symptom severity
          Control0..1
          TypeAnnotation
          56. SymptomLogicalModel.keyFeatures.severity.scaleCode
          Definition

          Code for the specific scale or assessment if any used to determine the severity

          ShortCode for the specific scale or assessment if any used to determine the severity
          Control0..1
          Typecode
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          58. SymptomLogicalModel.keyFeatures.severity.value
          Definition

          Code that represents the symptom severity

          ShortCode that represents the symptom severity
          Control1..1
          TypeCodeableConcept
          60. SymptomLogicalModel.keyFeatures.functionalImpact
          Definition

          How the symptom affects the patient's daily activities.

          ShortHow the symptom affects the patient's daily activities.
          Control0..1
          TypeBackboneElement
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          62. SymptomLogicalModel.keyFeatures.functionalImpact.id
          Definition

          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

          ShortUnique id for inter-element referencing
          Control0..1
          Typestring
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          64. SymptomLogicalModel.keyFeatures.functionalImpact.extension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

          ShortAdditional content defined by implementations
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Alternate Namesextensions, user content
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.functionalImpact.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 66. SymptomLogicalModel.keyFeatures.functionalImpact.modifierExtension
            Definition

            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

            ShortExtensions that cannot be ignored even if unrecognized
            Comments

            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

            Control0..*
            TypeExtension
            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
            Summarytrue
            Requirements

            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

            Alternate Namesextensions, user content, modifiers
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            68. SymptomLogicalModel.keyFeatures.functionalImpact.note
            Definition

            Textual description of the impact

            ShortTextual description of the impact
            Control0..1
            TypeAnnotation
            70. SymptomLogicalModel.keyFeatures.functionalImpact.scaleCode
            Definition

            Code for the specific scale or assessment (if any) used to determine the impact

            ShortCode for the specific scale or assessment (if any) used to determine the impact
            Control0..1
            Typecode
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            72. SymptomLogicalModel.keyFeatures.functionalImpact.value
            Definition

            Code that represents the functional impact

            ShortCode that represents the functional impact
            Control1..1
            TypeCodeableConcept
            74. SymptomLogicalModel.keyFeatures.affectiveGrade
            Definition

            Emotional or mental impact of a symptom.

            ShortEmotional or mental impact of a symptom.
            Control0..1
            TypeBackboneElement
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            76. SymptomLogicalModel.keyFeatures.affectiveGrade.id
            Definition

            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

            ShortUnique id for inter-element referencing
            Control0..1
            Typestring
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            78. SymptomLogicalModel.keyFeatures.affectiveGrade.extension
            Definition

            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

            ShortAdditional content defined by implementations
            Comments

            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

            Control0..*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Alternate Namesextensions, user content
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.affectiveGrade.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 80. SymptomLogicalModel.keyFeatures.affectiveGrade.modifierExtension
              Definition

              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

              ShortExtensions that cannot be ignored even if unrecognized
              Comments

              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

              Control0..*
              TypeExtension
              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
              Summarytrue
              Requirements

              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

              Alternate Namesextensions, user content, modifiers
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              82. SymptomLogicalModel.keyFeatures.affectiveGrade.note
              Definition

              Textual description of the grade

              ShortTextual description of the grade
              Control0..1
              TypeAnnotation
              84. SymptomLogicalModel.keyFeatures.affectiveGrade.value
              Definition

              Code that represents the affective grade

              ShortCode that represents the affective grade
              Control1..1
              TypeCodeableConcept
              86. SymptomLogicalModel.keyFeatures.surroundingEvents
              Definition

              What was occurring at the time of symptom onset.

              ShortWhat was occurring at the time of symptom onset.
              Control0..1
              TypeBackboneElement
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              88. SymptomLogicalModel.keyFeatures.surroundingEvents.id
              Definition

              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

              ShortUnique id for inter-element referencing
              Control0..1
              Typestring
              Is Modifierfalse
              XML FormatIn the XML format, this property is represented as an attribute.
              Summaryfalse
              90. SymptomLogicalModel.keyFeatures.surroundingEvents.extension
              Definition

              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

              ShortAdditional content defined by implementations
              Comments

              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

              Control0..*
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              Alternate Namesextensions, user content
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.surroundingEvents.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 92. SymptomLogicalModel.keyFeatures.surroundingEvents.modifierExtension
                Definition

                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                ShortExtensions that cannot be ignored even if unrecognized
                Comments

                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                Control0..*
                TypeExtension
                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                Summarytrue
                Requirements

                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                Alternate Namesextensions, user content, modifiers
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                94. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors
                Definition

                Patient reported actions, conditions, events, physical objects or other factors that initiate or worsen symptoms or the condition of interest (pain, nausea, dyspnea, dizziness, or other).

                Control0..*
                TypeBackboneElement
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                96. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.id
                Definition

                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                ShortUnique id for inter-element referencing
                Control0..1
                Typestring
                Is Modifierfalse
                XML FormatIn the XML format, this property is represented as an attribute.
                Summaryfalse
                98. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.extension
                Definition

                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                ShortAdditional content defined by implementations
                Comments

                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                Control0..*
                TypeExtension
                Is Modifierfalse
                Summaryfalse
                Alternate Namesextensions, user content
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 100. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.modifierExtension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                  Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                  ShortExtensions that cannot be ignored even if unrecognized
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                  Summarytrue
                  Requirements

                  Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                  Alternate Namesextensions, user content, modifiers
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  102. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.factor
                  Definition

                  Reference to the factor

                  ShortReference to the factor
                  Control1..1
                  TypeCodeableConcept
                  104. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.relatedMedication
                  Definition

                  Medication that triggers or exacerbates the symptom

                  ShortMedication that triggers or exacerbates the symptom
                  Control0..*
                  TypeMedication
                  106. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.note
                  Definition

                  Information given about actions, conditions, events, or other factors

                  ShortInformation given about actions, conditions, events, or other factors
                  Control0..1
                  TypeAnnotation
                  108. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors
                  Definition

                  Patient-reported actions, conditions, events, or other factors that decrease the symptoms or condition

                  Control0..*
                  TypeBackboneElement
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  110. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.id
                  Definition

                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                  ShortUnique id for inter-element referencing
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  112. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.extension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                  ShortAdditional content defined by implementations
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesextensions, user content
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 114. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.modifierExtension
                    Definition

                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                    ShortExtensions that cannot be ignored even if unrecognized
                    Comments

                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                    Control0..*
                    TypeExtension
                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                    Summarytrue
                    Requirements

                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                    Alternate Namesextensions, user content, modifiers
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    116. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.factor
                    Definition

                    Reference to the factor

                    ShortReference to the factor
                    Control1..1
                    TypeCodeableConcept
                    118. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.note
                    Definition

                    Information given about actions, conditions, events, or other factors

                    ShortInformation given about actions, conditions, events, or other factors
                    Control0..1
                    TypeAnnotation
                    120. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.relatedMedication
                    Definition

                    Medication alleviating the symptom

                    ShortMedication alleviating the symptom
                    Control0..*
                    TypeMedication
                    122. SymptomLogicalModel.keyFeatures.surroundingEvents.otherEvents
                    Definition

                    Patient-reported actions that were occuring at time of symptom onset

                    ShortPatient-reported actions that were occuring at time of symptom onset
                    Control0..*
                    TypeCodeableConcept
                    124. SymptomLogicalModel.keyFeatures.frequency[x]
                    Definition

                    How often the patient experiences the symptom i.e. expressed as 3x/day or 2x/week.

                    ShortHow often the patient experiences the symptom i.e. expressed as 3x/day or 2x/week.
                    Control0..1
                    TypeChoice of: Ratio, CodeableConcept
                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                    126. SymptomLogicalModel.timing
                    Definition

                    Timing includes the actual or estimated date/time of onset, character of onset, how often the patient experiences the symptom, and the length of time the symptom persists.

                    Control0..1
                    TypeBackboneElement
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    128. SymptomLogicalModel.timing.id
                    Definition

                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                    ShortUnique id for inter-element referencing
                    Control0..1
                    Typestring
                    Is Modifierfalse
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    130. SymptomLogicalModel.timing.extension
                    Definition

                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                    ShortAdditional content defined by implementations
                    Comments

                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                    Control0..*
                    TypeExtension
                    Is Modifierfalse
                    Summaryfalse
                    Alternate Namesextensions, user content
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    SlicingThis element introduces a set of slices on SymptomLogicalModel.timing.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                    • value @ url
                    • 132. SymptomLogicalModel.timing.modifierExtension
                      Definition

                      May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                      ShortExtensions that cannot be ignored even if unrecognized
                      Comments

                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                      Control0..*
                      TypeExtension
                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                      Summarytrue
                      Requirements

                      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                      Alternate Namesextensions, user content, modifiers
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      134. SymptomLogicalModel.timing.speed
                      Definition

                      The rate at which a physiological symptom became apparent.

                      ShortThe rate at which a physiological symptom became apparent.
                      Control0..1
                      TypeCodeableConcept
                      136. SymptomLogicalModel.timing.onset[x]
                      Definition

                      Clinically relevant time or period for the symptom since first occurance.

                      ShortClinically relevant time or period for the symptom since first occurance.
                      Control0..1
                      TypeChoice of: dateTime, Period
                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      138. SymptomLogicalModel.timing.note
                      Definition

                      Free text related to the observation

                      ShortFree text related to the observation
                      Control0..1
                      TypeAnnotation
                      140. SymptomLogicalModel.timing.duration[x]
                      Definition

                      The length of time the symptom persists in this instance of occurance.

                      ShortThe length of time the symptom persists in this instance of occurance.
                      Control0..1
                      TypeDuration
                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                      142. SymptomLogicalModel.clinicalCourse
                      Definition

                      Term to represent both the course and onset of a disease. Many conditions with an acute (sudden) onset also have an acute (short duration) course.

                      ShortCharacter of symptom onset.
                      Control0..1
                      TypeCodeableConcept
                      144. SymptomLogicalModel.trend
                      Definition

                      Whether a condition is improving, worsening, stable, or resolved.

                      ShortIntensity of symptom over time
                      Control0..1
                      TypeCodeableConcept
                      146. SymptomLogicalModel.metadata
                      Definition

                      Non clinical information about the symptom

                      ShortNon clinical information about the symptom
                      Control1..1
                      TypeBackboneElement
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      148. SymptomLogicalModel.metadata.id
                      Definition

                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                      ShortUnique id for inter-element referencing
                      Control0..1
                      Typestring
                      Is Modifierfalse
                      XML FormatIn the XML format, this property is represented as an attribute.
                      Summaryfalse
                      150. SymptomLogicalModel.metadata.extension
                      Definition

                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                      ShortAdditional content defined by implementations
                      Comments

                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                      Control0..*
                      TypeExtension
                      Is Modifierfalse
                      Summaryfalse
                      Alternate Namesextensions, user content
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      SlicingThis element introduces a set of slices on SymptomLogicalModel.metadata.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 152. SymptomLogicalModel.metadata.modifierExtension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                        ShortExtensions that cannot be ignored even if unrecognized
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                        Summarytrue
                        Requirements

                        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                        Alternate Namesextensions, user content, modifiers
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        154. SymptomLogicalModel.metadata.documentationDate
                        Definition

                        The date the symptom was entered, edited, or deleted.

                        ShortDate of recorded visit
                        Control1..1
                        TypedateTime
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        156. SymptomLogicalModel.metadata.issued
                        Definition

                        Date/time when the current version was made available.

                        ShortDate/time when the current version was made available.
                        Control1..1
                        TypedateTime
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension

                        Guidance on how to interpret the contents of this table can be foundhere

                        0. SymptomLogicalModel
                        Definition

                        Details about the Symptom.

                        ShortSymptom Logical Model
                        Logical ModelInstances of this logical model are not marked to be the target of a Reference
                        2. SymptomLogicalModel.identifier
                        Definition

                        A unique string that identifies this instance of a symptom

                        ShortA unique string that identifies this instance of a symptom
                        NoteThis is a business identifier, not a resource identifier (see discussion)
                        Control1..1
                        Typestring
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        4. SymptomLogicalModel.symptomCode
                        Definition

                        Coded description of symptom

                        ShortCoded description of symptom
                        Control1..1
                        TypeCodeableConcept
                        6. SymptomLogicalModel.absentOrPresentFlag
                        Definition

                        Whether the symptom is present or absent

                        ShortWhether the symptom is present or absent
                        Control1..1
                        Typeboolean
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        8. SymptomLogicalModel.affectedPatient
                        Definition

                        The patient who is experiencing the symptom

                        ShortThe patient who is experiencing the symptom
                        Control1..1
                        TypePatient
                        10. SymptomLogicalModel.reporter[x]
                        Definition

                        The person who is reporting the symptom information

                        ShortThe person who is reporting the symptom information
                        Control1..1
                        TypeChoice of: Patient, RelatedPerson
                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                        12. SymptomLogicalModel.symptomDescription
                        Definition

                        Textual description of symptom as provided by patient or care team member

                        ShortTextual description of symptom as provided by patient or care team member
                        Control0..*
                        TypeAnnotation
                        14. SymptomLogicalModel.location
                        Definition

                        Where the patient feels the symptom in the body.

                        ShortWhere the patient feels the symptom in the body.
                        Control0..*
                        TypeCodeableConcept
                        16. SymptomLogicalModel.associatedSymptoms
                        Definition

                        Other symptoms associated with this symptom

                        ShortOther symptoms associated with this symptom
                        Control0..*
                        Typehttp://hl7.org/fhir/uv/symptoms/StructureDefinition/SymptomLogicalModel
                        18. SymptomLogicalModel.associatedConditions
                        Definition

                        Condition associated with this symptom

                        ShortCondition associated with this symptom
                        Control0..*
                        TypeCondition
                        20. SymptomLogicalModel.keyFeatures
                        Definition

                        The key features of the symptom

                        ShortKey Features
                        Control1..1
                        TypeBackboneElement
                        22. SymptomLogicalModel.keyFeatures.quality
                        Definition

                        The patient's internal perception of the symptom.

                        ShortThe patient's internal perception of the symptom.
                        Control0..1
                        TypeBackboneElement
                        24. SymptomLogicalModel.keyFeatures.quality.note
                        Definition

                        Textual description of the symptom quality

                        ShortTextual description of the symptom quality
                        Control0..1
                        TypeAnnotation
                        26. SymptomLogicalModel.keyFeatures.quality.scaleCode
                        Definition

                        Code for the specific scale or assessment (if any) used to determine the quality

                        ShortCode for the specific scale or assessment (if any) used to determine the quality
                        Control0..1
                        Typecode
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        28. SymptomLogicalModel.keyFeatures.quality.value
                        Definition

                        Code that represents the symptom quality

                        ShortCode that represents the symptom quality
                        Control1..1
                        TypeCodeableConcept
                        30. SymptomLogicalModel.keyFeatures.severity
                        Definition

                        The intensity with which the patient experiences the symptom.

                        ShortThe intensity with which the patient experiences the symptom.
                        Control0..1
                        TypeBackboneElement
                        32. SymptomLogicalModel.keyFeatures.severity.note
                        Definition

                        Textual description of the symptom severity

                        ShortTextual description of the symptom severity
                        Control0..1
                        TypeAnnotation
                        34. SymptomLogicalModel.keyFeatures.severity.scaleCode
                        Definition

                        Code for the specific scale or assessment if any used to determine the severity

                        ShortCode for the specific scale or assessment if any used to determine the severity
                        Control0..1
                        Typecode
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        36. SymptomLogicalModel.keyFeatures.severity.value
                        Definition

                        Code that represents the symptom severity

                        ShortCode that represents the symptom severity
                        Control1..1
                        TypeCodeableConcept
                        38. SymptomLogicalModel.keyFeatures.functionalImpact
                        Definition

                        How the symptom affects the patient's daily activities.

                        ShortHow the symptom affects the patient's daily activities.
                        Control0..1
                        TypeBackboneElement
                        40. SymptomLogicalModel.keyFeatures.functionalImpact.note
                        Definition

                        Textual description of the impact

                        ShortTextual description of the impact
                        Control0..1
                        TypeAnnotation
                        42. SymptomLogicalModel.keyFeatures.functionalImpact.scaleCode
                        Definition

                        Code for the specific scale or assessment (if any) used to determine the impact

                        ShortCode for the specific scale or assessment (if any) used to determine the impact
                        Control0..1
                        Typecode
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        44. SymptomLogicalModel.keyFeatures.functionalImpact.value
                        Definition

                        Code that represents the functional impact

                        ShortCode that represents the functional impact
                        Control1..1
                        TypeCodeableConcept
                        46. SymptomLogicalModel.keyFeatures.affectiveGrade
                        Definition

                        Emotional or mental impact of a symptom.

                        ShortEmotional or mental impact of a symptom.
                        Control0..1
                        TypeBackboneElement
                        48. SymptomLogicalModel.keyFeatures.affectiveGrade.note
                        Definition

                        Textual description of the grade

                        ShortTextual description of the grade
                        Control0..1
                        TypeAnnotation
                        50. SymptomLogicalModel.keyFeatures.affectiveGrade.value
                        Definition

                        Code that represents the affective grade

                        ShortCode that represents the affective grade
                        Control1..1
                        TypeCodeableConcept
                        52. SymptomLogicalModel.keyFeatures.surroundingEvents
                        Definition

                        What was occurring at the time of symptom onset.

                        ShortWhat was occurring at the time of symptom onset.
                        Control0..1
                        TypeBackboneElement
                        54. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors
                        Definition

                        Patient reported actions, conditions, events, physical objects or other factors that initiate or worsen symptoms or the condition of interest (pain, nausea, dyspnea, dizziness, or other).

                        Control0..*
                        TypeBackboneElement
                        56. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.factor
                        Definition

                        Reference to the factor

                        ShortReference to the factor
                        Control1..1
                        TypeCodeableConcept
                        58. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.relatedMedication
                        Definition

                        Medication that triggers or exacerbates the symptom

                        ShortMedication that triggers or exacerbates the symptom
                        Control0..*
                        TypeMedication
                        60. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.note
                        Definition

                        Information given about actions, conditions, events, or other factors

                        ShortInformation given about actions, conditions, events, or other factors
                        Control0..1
                        TypeAnnotation
                        62. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors
                        Definition

                        Patient-reported actions, conditions, events, or other factors that decrease the symptoms or condition

                        Control0..*
                        TypeBackboneElement
                        64. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.factor
                        Definition

                        Reference to the factor

                        ShortReference to the factor
                        Control1..1
                        TypeCodeableConcept
                        66. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.note
                        Definition

                        Information given about actions, conditions, events, or other factors

                        ShortInformation given about actions, conditions, events, or other factors
                        Control0..1
                        TypeAnnotation
                        68. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.relatedMedication
                        Definition

                        Medication alleviating the symptom

                        ShortMedication alleviating the symptom
                        Control0..*
                        TypeMedication
                        70. SymptomLogicalModel.keyFeatures.surroundingEvents.otherEvents
                        Definition

                        Patient-reported actions that were occuring at time of symptom onset

                        ShortPatient-reported actions that were occuring at time of symptom onset
                        Control0..*
                        TypeCodeableConcept
                        72. SymptomLogicalModel.keyFeatures.frequency[x]
                        Definition

                        How often the patient experiences the symptom i.e. expressed as 3x/day or 2x/week.

                        ShortHow often the patient experiences the symptom i.e. expressed as 3x/day or 2x/week.
                        Control0..1
                        TypeChoice of: Ratio, CodeableConcept
                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                        74. SymptomLogicalModel.timing
                        Definition

                        Timing includes the actual or estimated date/time of onset, character of onset, how often the patient experiences the symptom, and the length of time the symptom persists.

                        Control0..1
                        TypeBackboneElement
                        76. SymptomLogicalModel.timing.speed
                        Definition

                        The rate at which a physiological symptom became apparent.

                        ShortThe rate at which a physiological symptom became apparent.
                        Control0..1
                        TypeCodeableConcept
                        78. SymptomLogicalModel.timing.onset[x]
                        Definition

                        Clinically relevant time or period for the symptom since first occurance.

                        ShortClinically relevant time or period for the symptom since first occurance.
                        Control0..1
                        TypeChoice of: dateTime, Period
                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        80. SymptomLogicalModel.timing.note
                        Definition

                        Free text related to the observation

                        ShortFree text related to the observation
                        Control0..1
                        TypeAnnotation
                        82. SymptomLogicalModel.timing.duration[x]
                        Definition

                        The length of time the symptom persists in this instance of occurance.

                        ShortThe length of time the symptom persists in this instance of occurance.
                        Control0..1
                        TypeDuration
                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                        84. SymptomLogicalModel.clinicalCourse
                        Definition

                        Term to represent both the course and onset of a disease. Many conditions with an acute (sudden) onset also have an acute (short duration) course.

                        ShortCharacter of symptom onset.
                        Control0..1
                        TypeCodeableConcept
                        86. SymptomLogicalModel.trend
                        Definition

                        Whether a condition is improving, worsening, stable, or resolved.

                        ShortIntensity of symptom over time
                        Control0..1
                        TypeCodeableConcept
                        88. SymptomLogicalModel.metadata
                        Definition

                        Non clinical information about the symptom

                        ShortNon clinical information about the symptom
                        Control1..1
                        TypeBackboneElement
                        90. SymptomLogicalModel.metadata.documentationDate
                        Definition

                        The date the symptom was entered, edited, or deleted.

                        ShortDate of recorded visit
                        Control1..1
                        TypedateTime
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        92. SymptomLogicalModel.metadata.issued
                        Definition

                        Date/time when the current version was made available.

                        ShortDate/time when the current version was made available.
                        Control1..1
                        TypedateTime
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension

                        Guidance on how to interpret the contents of this table can be foundhere

                        0. SymptomLogicalModel
                        Definition

                        Details about the Symptom.

                        ShortSymptom Logical Model
                        Control0..*
                        This element is affected by the following invariants: ele-1
                        Is Modifierfalse
                        Logical ModelInstances of this logical model are not marked to be the target of a Reference
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        2. SymptomLogicalModel.id
                        Definition

                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        4. SymptomLogicalModel.extension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                        ShortAdditional content defined by implementations
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        SlicingThis element introduces a set of slices on SymptomLogicalModel.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                        • value @ url
                        • 6. SymptomLogicalModel.identifier
                          Definition

                          A unique string that identifies this instance of a symptom

                          ShortA unique string that identifies this instance of a symptom
                          NoteThis is a business identifier, not a resource identifier (see discussion)
                          Control1..1
                          Typestring
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          8. SymptomLogicalModel.symptomCode
                          Definition

                          Coded description of symptom

                          ShortCoded description of symptom
                          Control1..1
                          TypeCodeableConcept
                          10. SymptomLogicalModel.absentOrPresentFlag
                          Definition

                          Whether the symptom is present or absent

                          ShortWhether the symptom is present or absent
                          Control1..1
                          Typeboolean
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          12. SymptomLogicalModel.affectedPatient
                          Definition

                          The patient who is experiencing the symptom

                          ShortThe patient who is experiencing the symptom
                          Control1..1
                          TypePatient
                          14. SymptomLogicalModel.reporter[x]
                          Definition

                          The person who is reporting the symptom information

                          ShortThe person who is reporting the symptom information
                          Control1..1
                          TypeChoice of: Patient, RelatedPerson
                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                          16. SymptomLogicalModel.symptomDescription
                          Definition

                          Textual description of symptom as provided by patient or care team member

                          ShortTextual description of symptom as provided by patient or care team member
                          Control0..*
                          TypeAnnotation
                          18. SymptomLogicalModel.location
                          Definition

                          Where the patient feels the symptom in the body.

                          ShortWhere the patient feels the symptom in the body.
                          Control0..*
                          TypeCodeableConcept
                          20. SymptomLogicalModel.associatedSymptoms
                          Definition

                          Other symptoms associated with this symptom

                          ShortOther symptoms associated with this symptom
                          Control0..*
                          Typehttp://hl7.org/fhir/uv/symptoms/StructureDefinition/SymptomLogicalModel
                          22. SymptomLogicalModel.associatedConditions
                          Definition

                          Condition associated with this symptom

                          ShortCondition associated with this symptom
                          Control0..*
                          TypeCondition
                          24. SymptomLogicalModel.keyFeatures
                          Definition

                          The key features of the symptom

                          ShortKey Features
                          Control1..1
                          TypeBackboneElement
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          26. SymptomLogicalModel.keyFeatures.id
                          Definition

                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                          ShortUnique id for inter-element referencing
                          Control0..1
                          Typestring
                          Is Modifierfalse
                          XML FormatIn the XML format, this property is represented as an attribute.
                          Summaryfalse
                          28. SymptomLogicalModel.keyFeatures.extension
                          Definition

                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                          ShortAdditional content defined by implementations
                          Comments

                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                          Control0..*
                          TypeExtension
                          Is Modifierfalse
                          Summaryfalse
                          Alternate Namesextensions, user content
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                          • value @ url
                          • 30. SymptomLogicalModel.keyFeatures.modifierExtension
                            Definition

                            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                            ShortExtensions that cannot be ignored even if unrecognized
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            TypeExtension
                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                            Summarytrue
                            Requirements

                            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                            Alternate Namesextensions, user content, modifiers
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            32. SymptomLogicalModel.keyFeatures.quality
                            Definition

                            The patient's internal perception of the symptom.

                            ShortThe patient's internal perception of the symptom.
                            Control0..1
                            TypeBackboneElement
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            34. SymptomLogicalModel.keyFeatures.quality.id
                            Definition

                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                            ShortUnique id for inter-element referencing
                            Control0..1
                            Typestring
                            Is Modifierfalse
                            XML FormatIn the XML format, this property is represented as an attribute.
                            Summaryfalse
                            36. SymptomLogicalModel.keyFeatures.quality.extension
                            Definition

                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                            ShortAdditional content defined by implementations
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            TypeExtension
                            Is Modifierfalse
                            Summaryfalse
                            Alternate Namesextensions, user content
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.quality.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                            • value @ url
                            • 38. SymptomLogicalModel.keyFeatures.quality.modifierExtension
                              Definition

                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                              ShortExtensions that cannot be ignored even if unrecognized
                              Comments

                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                              Control0..*
                              TypeExtension
                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                              Summarytrue
                              Requirements

                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                              Alternate Namesextensions, user content, modifiers
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                              40. SymptomLogicalModel.keyFeatures.quality.note
                              Definition

                              Textual description of the symptom quality

                              ShortTextual description of the symptom quality
                              Control0..1
                              TypeAnnotation
                              42. SymptomLogicalModel.keyFeatures.quality.scaleCode
                              Definition

                              Code for the specific scale or assessment (if any) used to determine the quality

                              ShortCode for the specific scale or assessment (if any) used to determine the quality
                              Control0..1
                              Typecode
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              44. SymptomLogicalModel.keyFeatures.quality.value
                              Definition

                              Code that represents the symptom quality

                              ShortCode that represents the symptom quality
                              Control1..1
                              TypeCodeableConcept
                              46. SymptomLogicalModel.keyFeatures.severity
                              Definition

                              The intensity with which the patient experiences the symptom.

                              ShortThe intensity with which the patient experiences the symptom.
                              Control0..1
                              TypeBackboneElement
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              48. SymptomLogicalModel.keyFeatures.severity.id
                              Definition

                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                              ShortUnique id for inter-element referencing
                              Control0..1
                              Typestring
                              Is Modifierfalse
                              XML FormatIn the XML format, this property is represented as an attribute.
                              Summaryfalse
                              50. SymptomLogicalModel.keyFeatures.severity.extension
                              Definition

                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                              ShortAdditional content defined by implementations
                              Comments

                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                              Control0..*
                              TypeExtension
                              Is Modifierfalse
                              Summaryfalse
                              Alternate Namesextensions, user content
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                              SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.severity.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                              • value @ url
                              • 52. SymptomLogicalModel.keyFeatures.severity.modifierExtension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                ShortExtensions that cannot be ignored even if unrecognized
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                Summarytrue
                                Requirements

                                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                Alternate Namesextensions, user content, modifiers
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                54. SymptomLogicalModel.keyFeatures.severity.note
                                Definition

                                Textual description of the symptom severity

                                ShortTextual description of the symptom severity
                                Control0..1
                                TypeAnnotation
                                56. SymptomLogicalModel.keyFeatures.severity.scaleCode
                                Definition

                                Code for the specific scale or assessment if any used to determine the severity

                                ShortCode for the specific scale or assessment if any used to determine the severity
                                Control0..1
                                Typecode
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                58. SymptomLogicalModel.keyFeatures.severity.value
                                Definition

                                Code that represents the symptom severity

                                ShortCode that represents the symptom severity
                                Control1..1
                                TypeCodeableConcept
                                60. SymptomLogicalModel.keyFeatures.functionalImpact
                                Definition

                                How the symptom affects the patient's daily activities.

                                ShortHow the symptom affects the patient's daily activities.
                                Control0..1
                                TypeBackboneElement
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                62. SymptomLogicalModel.keyFeatures.functionalImpact.id
                                Definition

                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                ShortUnique id for inter-element referencing
                                Control0..1
                                Typestring
                                Is Modifierfalse
                                XML FormatIn the XML format, this property is represented as an attribute.
                                Summaryfalse
                                64. SymptomLogicalModel.keyFeatures.functionalImpact.extension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortAdditional content defined by implementations
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.functionalImpact.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                • value @ url
                                • 66. SymptomLogicalModel.keyFeatures.functionalImpact.modifierExtension
                                  Definition

                                  May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                  Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                  ShortExtensions that cannot be ignored even if unrecognized
                                  Comments

                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                  Control0..*
                                  TypeExtension
                                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                  Summarytrue
                                  Requirements

                                  Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                  Alternate Namesextensions, user content, modifiers
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                  68. SymptomLogicalModel.keyFeatures.functionalImpact.note
                                  Definition

                                  Textual description of the impact

                                  ShortTextual description of the impact
                                  Control0..1
                                  TypeAnnotation
                                  70. SymptomLogicalModel.keyFeatures.functionalImpact.scaleCode
                                  Definition

                                  Code for the specific scale or assessment (if any) used to determine the impact

                                  ShortCode for the specific scale or assessment (if any) used to determine the impact
                                  Control0..1
                                  Typecode
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  72. SymptomLogicalModel.keyFeatures.functionalImpact.value
                                  Definition

                                  Code that represents the functional impact

                                  ShortCode that represents the functional impact
                                  Control1..1
                                  TypeCodeableConcept
                                  74. SymptomLogicalModel.keyFeatures.affectiveGrade
                                  Definition

                                  Emotional or mental impact of a symptom.

                                  ShortEmotional or mental impact of a symptom.
                                  Control0..1
                                  TypeBackboneElement
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  76. SymptomLogicalModel.keyFeatures.affectiveGrade.id
                                  Definition

                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                  ShortUnique id for inter-element referencing
                                  Control0..1
                                  Typestring
                                  Is Modifierfalse
                                  XML FormatIn the XML format, this property is represented as an attribute.
                                  Summaryfalse
                                  78. SymptomLogicalModel.keyFeatures.affectiveGrade.extension
                                  Definition

                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                  ShortAdditional content defined by implementations
                                  Comments

                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                  Control0..*
                                  TypeExtension
                                  Is Modifierfalse
                                  Summaryfalse
                                  Alternate Namesextensions, user content
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                  SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.affectiveGrade.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                  • value @ url
                                  • 80. SymptomLogicalModel.keyFeatures.affectiveGrade.modifierExtension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                    ShortExtensions that cannot be ignored even if unrecognized
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                    Summarytrue
                                    Requirements

                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                    Alternate Namesextensions, user content, modifiers
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    82. SymptomLogicalModel.keyFeatures.affectiveGrade.note
                                    Definition

                                    Textual description of the grade

                                    ShortTextual description of the grade
                                    Control0..1
                                    TypeAnnotation
                                    84. SymptomLogicalModel.keyFeatures.affectiveGrade.value
                                    Definition

                                    Code that represents the affective grade

                                    ShortCode that represents the affective grade
                                    Control1..1
                                    TypeCodeableConcept
                                    86. SymptomLogicalModel.keyFeatures.surroundingEvents
                                    Definition

                                    What was occurring at the time of symptom onset.

                                    ShortWhat was occurring at the time of symptom onset.
                                    Control0..1
                                    TypeBackboneElement
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    88. SymptomLogicalModel.keyFeatures.surroundingEvents.id
                                    Definition

                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                    ShortUnique id for inter-element referencing
                                    Control0..1
                                    Typestring
                                    Is Modifierfalse
                                    XML FormatIn the XML format, this property is represented as an attribute.
                                    Summaryfalse
                                    90. SymptomLogicalModel.keyFeatures.surroundingEvents.extension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                    ShortAdditional content defined by implementations
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate Namesextensions, user content
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.surroundingEvents.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                    • value @ url
                                    • 92. SymptomLogicalModel.keyFeatures.surroundingEvents.modifierExtension
                                      Definition

                                      May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                      ShortExtensions that cannot be ignored even if unrecognized
                                      Comments

                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                      Control0..*
                                      TypeExtension
                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                      Summarytrue
                                      Requirements

                                      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                      Alternate Namesextensions, user content, modifiers
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                      94. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors
                                      Definition

                                      Patient reported actions, conditions, events, physical objects or other factors that initiate or worsen symptoms or the condition of interest (pain, nausea, dyspnea, dizziness, or other).

                                      Control0..*
                                      TypeBackboneElement
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      96. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.id
                                      Definition

                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                      ShortUnique id for inter-element referencing
                                      Control0..1
                                      Typestring
                                      Is Modifierfalse
                                      XML FormatIn the XML format, this property is represented as an attribute.
                                      Summaryfalse
                                      98. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.extension
                                      Definition

                                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                      ShortAdditional content defined by implementations
                                      Comments

                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                      Control0..*
                                      TypeExtension
                                      Is Modifierfalse
                                      Summaryfalse
                                      Alternate Namesextensions, user content
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                      SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                      • value @ url
                                      • 100. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.modifierExtension
                                        Definition

                                        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                        ShortExtensions that cannot be ignored even if unrecognized
                                        Comments

                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                        Control0..*
                                        TypeExtension
                                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                        Summarytrue
                                        Requirements

                                        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                        Alternate Namesextensions, user content, modifiers
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                        102. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.factor
                                        Definition

                                        Reference to the factor

                                        ShortReference to the factor
                                        Control1..1
                                        TypeCodeableConcept
                                        104. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.relatedMedication
                                        Definition

                                        Medication that triggers or exacerbates the symptom

                                        ShortMedication that triggers or exacerbates the symptom
                                        Control0..*
                                        TypeMedication
                                        106. SymptomLogicalModel.keyFeatures.surroundingEvents.triggerOrExacerbatingFactors.note
                                        Definition

                                        Information given about actions, conditions, events, or other factors

                                        ShortInformation given about actions, conditions, events, or other factors
                                        Control0..1
                                        TypeAnnotation
                                        108. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors
                                        Definition

                                        Patient-reported actions, conditions, events, or other factors that decrease the symptoms or condition

                                        Control0..*
                                        TypeBackboneElement
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        110. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.id
                                        Definition

                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                        ShortUnique id for inter-element referencing
                                        Control0..1
                                        Typestring
                                        Is Modifierfalse
                                        XML FormatIn the XML format, this property is represented as an attribute.
                                        Summaryfalse
                                        112. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.extension
                                        Definition

                                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                        ShortAdditional content defined by implementations
                                        Comments

                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                        Control0..*
                                        TypeExtension
                                        Is Modifierfalse
                                        Summaryfalse
                                        Alternate Namesextensions, user content
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                        SlicingThis element introduces a set of slices on SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                        • value @ url
                                        • 114. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.modifierExtension
                                          Definition

                                          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                          ShortExtensions that cannot be ignored even if unrecognized
                                          Comments

                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                          Control0..*
                                          TypeExtension
                                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                          Summarytrue
                                          Requirements

                                          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                          Alternate Namesextensions, user content, modifiers
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                          116. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.factor
                                          Definition

                                          Reference to the factor

                                          ShortReference to the factor
                                          Control1..1
                                          TypeCodeableConcept
                                          118. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.note
                                          Definition

                                          Information given about actions, conditions, events, or other factors

                                          ShortInformation given about actions, conditions, events, or other factors
                                          Control0..1
                                          TypeAnnotation
                                          120. SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.relatedMedication
                                          Definition

                                          Medication alleviating the symptom

                                          ShortMedication alleviating the symptom
                                          Control0..*
                                          TypeMedication
                                          122. SymptomLogicalModel.keyFeatures.surroundingEvents.otherEvents
                                          Definition

                                          Patient-reported actions that were occuring at time of symptom onset

                                          ShortPatient-reported actions that were occuring at time of symptom onset
                                          Control0..*
                                          TypeCodeableConcept
                                          124. SymptomLogicalModel.keyFeatures.frequency[x]
                                          Definition

                                          How often the patient experiences the symptom i.e. expressed as 3x/day or 2x/week.

                                          ShortHow often the patient experiences the symptom i.e. expressed as 3x/day or 2x/week.
                                          Control0..1
                                          TypeChoice of: Ratio, CodeableConcept
                                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                          126. SymptomLogicalModel.timing
                                          Definition

                                          Timing includes the actual or estimated date/time of onset, character of onset, how often the patient experiences the symptom, and the length of time the symptom persists.

                                          Control0..1
                                          TypeBackboneElement
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          128. SymptomLogicalModel.timing.id
                                          Definition

                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                          ShortUnique id for inter-element referencing
                                          Control0..1
                                          Typestring
                                          Is Modifierfalse
                                          XML FormatIn the XML format, this property is represented as an attribute.
                                          Summaryfalse
                                          130. SymptomLogicalModel.timing.extension
                                          Definition

                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                          ShortAdditional content defined by implementations
                                          Comments

                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                          Control0..*
                                          TypeExtension
                                          Is Modifierfalse
                                          Summaryfalse
                                          Alternate Namesextensions, user content
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                          SlicingThis element introduces a set of slices on SymptomLogicalModel.timing.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                          • value @ url
                                          • 132. SymptomLogicalModel.timing.modifierExtension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                            ShortExtensions that cannot be ignored even if unrecognized
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                            Summarytrue
                                            Requirements

                                            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                            Alternate Namesextensions, user content, modifiers
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            134. SymptomLogicalModel.timing.speed
                                            Definition

                                            The rate at which a physiological symptom became apparent.

                                            ShortThe rate at which a physiological symptom became apparent.
                                            Control0..1
                                            TypeCodeableConcept
                                            136. SymptomLogicalModel.timing.onset[x]
                                            Definition

                                            Clinically relevant time or period for the symptom since first occurance.

                                            ShortClinically relevant time or period for the symptom since first occurance.
                                            Control0..1
                                            TypeChoice of: dateTime, Period
                                            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            138. SymptomLogicalModel.timing.note
                                            Definition

                                            Free text related to the observation

                                            ShortFree text related to the observation
                                            Control0..1
                                            TypeAnnotation
                                            140. SymptomLogicalModel.timing.duration[x]
                                            Definition

                                            The length of time the symptom persists in this instance of occurance.

                                            ShortThe length of time the symptom persists in this instance of occurance.
                                            Control0..1
                                            TypeDuration
                                            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                            142. SymptomLogicalModel.clinicalCourse
                                            Definition

                                            Term to represent both the course and onset of a disease. Many conditions with an acute (sudden) onset also have an acute (short duration) course.

                                            ShortCharacter of symptom onset.
                                            Control0..1
                                            TypeCodeableConcept
                                            144. SymptomLogicalModel.trend
                                            Definition

                                            Whether a condition is improving, worsening, stable, or resolved.

                                            ShortIntensity of symptom over time
                                            Control0..1
                                            TypeCodeableConcept
                                            146. SymptomLogicalModel.metadata
                                            Definition

                                            Non clinical information about the symptom

                                            ShortNon clinical information about the symptom
                                            Control1..1
                                            TypeBackboneElement
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            148. SymptomLogicalModel.metadata.id
                                            Definition

                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                            ShortUnique id for inter-element referencing
                                            Control0..1
                                            Typestring
                                            Is Modifierfalse
                                            XML FormatIn the XML format, this property is represented as an attribute.
                                            Summaryfalse
                                            150. SymptomLogicalModel.metadata.extension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                            ShortAdditional content defined by implementations
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifierfalse
                                            Summaryfalse
                                            Alternate Namesextensions, user content
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            SlicingThis element introduces a set of slices on SymptomLogicalModel.metadata.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                            • value @ url
                                            • 152. SymptomLogicalModel.metadata.modifierExtension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                              ShortExtensions that cannot be ignored even if unrecognized
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                              Summarytrue
                                              Requirements

                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                              Alternate Namesextensions, user content, modifiers
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              154. SymptomLogicalModel.metadata.documentationDate
                                              Definition

                                              The date the symptom was entered, edited, or deleted.

                                              ShortDate of recorded visit
                                              Control1..1
                                              TypedateTime
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              156. SymptomLogicalModel.metadata.issued
                                              Definition

                                              Date/time when the current version was made available.

                                              ShortDate/time when the current version was made available.
                                              Control1..1
                                              TypedateTime
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension