Pharmaceutical Quality (Industry)
1.0.0 - STU1 International flag

Pharmaceutical Quality (Industry), published by HL7 International / Biomedical Research and Regulation. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/uv-dx-pq/ and changes regularly. See the Directory of published versions

Resource Profile: ObservationDefinitionTestMethodPq - Detailed Descriptions

Active as of 2024-05-08

Definitions for the ObservationDefinition-test-method-drug-pq resource profile.

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

0. ObservationDefinition
2. ObservationDefinition.title
4. ObservationDefinition.title.extension
SlicingThis element introduces a set of slices on ObservationDefinition.title.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 6. ObservationDefinition.title.extension:test-comment-title
    Slice Nametest-comment-title
    Shorttest-comment-title
    Control0..1
    TypeExtension(Extension - Test Comment PQ) (Extension Type: string)
    Must Supporttrue
    8. ObservationDefinition.code
    BindingFor example codes, see Test Method
    (example to http://hl7.org/fhir/uv/pharm-quality/ValueSet/vs-test-method-pq)
    Must Supporttrue
    10. ObservationDefinition.method
    Must Supporttrue
    12. ObservationDefinition.specimen
    Must Supporttrue
    14. ObservationDefinition.device
    TypeReference(DeviceDefinition, Device)
    Must Supporttrue
    Must Support TypesNo must-support rules about the choice of types/profiles
    16. ObservationDefinition.qualifiedValue
    Must Supporttrue
    18. ObservationDefinition.qualifiedValue.extension
    SlicingThis element introduces a set of slices on ObservationDefinition.qualifiedValue.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 20. ObservationDefinition.qualifiedValue.extension:qualified-value-text
      Slice Namequalified-value-text
      Shortqualified-value-text
      TypeExtension(Extension - Qualified Value Text PQ) (Extension Type: string)
      Must Supporttrue
      22. ObservationDefinition.qualifiedValue.extension:qualified-value-display
      Slice Namequalified-value-display
      Shortqualified-value-display
      TypeExtension(Extension - Qualified Value Display PQ) (Extension Type: string)
      Must Supporttrue
      24. ObservationDefinition.qualifiedValue.extension:qualified-value-target
      Slice Namequalified-value-target
      Shortqualified-value-target
      TypeExtension(Extension - Qualified Value Target PQ) (Extension Type: Quantity)
      Must Supporttrue
      26. ObservationDefinition.qualifiedValue.extension:qualified-value-criticality
      Slice Namequalified-value-criticality
      Shortqualified-value-criticality
      TypeExtension(Extension - Qualified Value Criticality PQ) (Extension Type: CodeableConcept)
      Must Supporttrue
      28. ObservationDefinition.qualifiedValue.appliesTo
      30. ObservationDefinition.qualifiedValue.appliesTo.extension
      SlicingThis element introduces a set of slices on ObservationDefinition.qualifiedValue.appliesTo.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 32. ObservationDefinition.qualifiedValue.appliesTo.extension:test-comment
        Slice Nametest-comment
        Shorttest-comment
        Control0..1
        TypeExtension(Extension - Test Comment PQ) (Extension Type: string)
        Must Supporttrue
        34. ObservationDefinition.qualifiedValue.range
        Must Supporttrue
        36. ObservationDefinition.qualifiedValue.range.extension
        SlicingThis element introduces a set of slices on ObservationDefinition.qualifiedValue.range.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 38. ObservationDefinition.qualifiedValue.range.extension:qualified-value-target
          Slice Namequalified-value-target
          Shortqualified-value-target
          Control0..1
          TypeExtension(Extension - Qualified Value Target PQ) (Extension Type: Quantity)
          Must Supporttrue
          40. ObservationDefinition.hasMember
          Must Supporttrue

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

          0. ObservationDefinition
          Definition

          Set of definitional characteristics for a kind of observation or measurement produced or consumed by an orderable health care service.

          ShortDefinition of an observation
          Comments

          An instance of this resource informs the consumer of a health-related service (such as a lab diagnostic test or panel) about how the observations used or produced by this service will look like.

          Control0..*
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Invariantscnl-0: Name should be usable as an identifier for the module by machine processing applications such as code generation (name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$'))
          obd-0: If permittedUnit exists, then permittedDataType=Quantity must exist. (permittedUnit.exists() implies (permittedDataType = 'Quantity').exists())
          2. ObservationDefinition.implicitRules
          Definition

          A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

          ShortA set of rules under which this content was created
          Comments

          Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of its narrative along with other profiles, value sets, etc.

          Control0..1
          Typeuri
          Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies its meaning or interpretation
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supportfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          4. ObservationDefinition.contained
          Definition

          These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.

          ShortContained, inline Resources
          Comments

          This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags in their meta elements, but SHALL NOT have security labels.

          Control0..*
          This element is affected by the following invariants: dom-2, dom-4, dom-3, dom-5
          TypeResource
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Alternate Namesinline resources, anonymous resources, contained resources
          6. ObservationDefinition.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it 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 managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to 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
          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 resource that contains them
          Must Supportfalse
          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
          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())
          8. ObservationDefinition.title
          Definition

          A short, descriptive, user-friendly title for the ObservationDefinition.

          ShortName for this ObservationDefinition (human friendly)
          Control0..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supportfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          10. ObservationDefinition.title.extension
          Definition

          An Extension


          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 managable, 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.

          ShortExtensionAdditional 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 ObservationDefinition.title.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 12. ObservationDefinition.title.extension:test-comment-title
            Slice Nametest-comment-title
            Definition

            An Extension

            Shorttest-comment-title
            Control0..1
            TypeExtension(Extension - Test Comment PQ) (Extension Type: string)
            Is Modifierfalse
            Must Supporttrue
            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())
            14. ObservationDefinition.status
            Definition

            The current state of the ObservationDefinition.

            Shortdraft | active | retired | unknown
            Comments

            A nominal state-transition diagram can be found in the Definition pattern documentation Unknown does not represent "other" - one of the defined statuses must apply. Unknown is used when the authoring system is not sure what the current status is.

            See guidance around (not) making local changes to elements here.

            Control1..1
            BindingThe codes SHALL be taken from PublicationStatushttp://hl7.org/fhir/ValueSet/publication-status|5.0.0
            (required to http://hl7.org/fhir/ValueSet/publication-status|5.0.0)

            Codes identifying the state of an ObservationDefinition.

            Typecode
            Is Modifiertrue because Not known why this is labelled a modifier
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supportfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            16. ObservationDefinition.code
            Definition

            Describes what will be observed. Sometimes this is called the observation "name".

            ShortType of observation
            Control1..1
            BindingFor example codes, see Test Methodhttp://hl7.org/fhir/ValueSet/observation-codes
            (example to http://hl7.org/fhir/uv/pharm-quality/ValueSet/vs-test-method-pq)
            TypeCodeableConcept
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            18. ObservationDefinition.method
            Definition

            The method or technique used to perform the observation.

            ShortMethod used to produce the observation
            Comments

            Only used if not implicit in observation code Example: 702659008 |Automated count technique|.

            Control0..1
            BindingFor example codes, see ObservationMethodshttp://hl7.org/fhir/ValueSet/observation-methods
            (example to http://hl7.org/fhir/ValueSet/observation-methods)

            Methods for simple observations.

            TypeCodeableConcept
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Requirements

            In some cases, method can impact results.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            20. ObservationDefinition.specimen
            Definition

            The kind of specimen that this type of observation is produced on.

            ShortKind of specimen used by this type of observation
            Comments

            Only used for in vitro observations. When multiple occurrences of specimen are present, they are to be combined with a logical AND: all specified specimens are needed for the observation.

            Control0..*
            TypeReference(SpecimenDefinition)
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            22. ObservationDefinition.device
            Definition

            The measurement model of device or actual device used to produce observations of this type.

            ShortMeasurement device or model of device
            Comments

            When multiple occurrences of device are present, they are to be combined with a logical OR: at least one of the specified devices is used to produce the observation.

            Control0..*
            TypeReference(DeviceDefinition, Device)
            Is Modifierfalse
            Must Supporttrue
            Must Support TypesNo must-support rules about the choice of types/profiles
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            24. ObservationDefinition.qualifiedValue
            Definition

            A set of qualified values associated with a context and a set of conditions - provides a range for quantitative and ordinal observations and a collection of value sets for qualitative observations.

            ShortSet of qualified values for observation results
            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            26. ObservationDefinition.qualifiedValue.extension
            Definition

            An Extension


            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 managable, 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.

            ShortExtensionAdditional 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 ObservationDefinition.qualifiedValue.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 28. ObservationDefinition.qualifiedValue.extension:qualified-value-text
              Slice Namequalified-value-text
              Definition

              An Extension

              Shortqualified-value-text
              Control0..*
              TypeExtension(Extension - Qualified Value Text PQ) (Extension Type: string)
              Is Modifierfalse
              Must Supporttrue
              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())
              30. ObservationDefinition.qualifiedValue.extension:qualified-value-display
              Slice Namequalified-value-display
              Definition

              An Extension

              Shortqualified-value-display
              Control0..*
              TypeExtension(Extension - Qualified Value Display PQ) (Extension Type: string)
              Is Modifierfalse
              Must Supporttrue
              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. ObservationDefinition.qualifiedValue.extension:qualified-value-target
              Slice Namequalified-value-target
              Definition

              An Extension

              Shortqualified-value-target
              Control0..*
              TypeExtension(Extension - Qualified Value Target PQ) (Extension Type: Quantity)
              Is Modifierfalse
              Must Supporttrue
              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())
              34. ObservationDefinition.qualifiedValue.extension:qualified-value-criticality
              Slice Namequalified-value-criticality
              Definition

              An Extension

              Shortqualified-value-criticality
              Control0..*
              TypeExtension(Extension - Qualified Value Criticality PQ) (Extension Type: CodeableConcept)
              Is Modifierfalse
              Must Supporttrue
              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())
              36. ObservationDefinition.qualifiedValue.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 managable, 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())
              38. ObservationDefinition.qualifiedValue.appliesTo
              Definition

              The target population this set of qualified values applies to.

              ShortTargetted population for the set of qualified values
              Comments

              If this element is not present then the global population is assumed.

              Control0..*
              BindingFor example codes, see ObservationReferenceRangeAppliesToCodeshttp://hl7.org/fhir/ValueSet/referencerange-appliesto
              (example to http://hl7.org/fhir/ValueSet/referencerange-appliesto)
              TypeCodeableConcept
              Is Modifierfalse
              Must Supportfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              40. ObservationDefinition.qualifiedValue.appliesTo.extension
              Definition

              An Extension


              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 managable, 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.

              ShortExtensionAdditional 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 ObservationDefinition.qualifiedValue.appliesTo.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 42. ObservationDefinition.qualifiedValue.appliesTo.extension:test-comment
                Slice Nametest-comment
                Definition

                An Extension

                Shorttest-comment
                Control0..1
                TypeExtension(Extension - Test Comment PQ) (Extension Type: string)
                Is Modifierfalse
                Must Supporttrue
                Summaryfalse
                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())
                44. ObservationDefinition.qualifiedValue.range
                Definition

                The range of values defined for continuous or ordinal observations that match the criteria of this set of qualified values.

                ShortThe range for continuous or ordinal observations
                Control0..1
                TypeRange
                Is Modifierfalse
                Must Supporttrue
                Summaryfalse
                Requirements

                The unit may be not relevant for ordinal values. In case it is there, it is the same as ObservationDefinition.unit.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                46. ObservationDefinition.qualifiedValue.range.extension
                Definition

                An Extension


                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 managable, 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.

                ShortExtensionAdditional 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 ObservationDefinition.qualifiedValue.range.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 48. ObservationDefinition.qualifiedValue.range.extension:qualified-value-target
                  Slice Namequalified-value-target
                  Definition

                  An Extension

                  Shortqualified-value-target
                  Control0..1
                  TypeExtension(Extension - Qualified Value Target PQ) (Extension Type: Quantity)
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  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())
                  50. ObservationDefinition.hasMember
                  Definition

                  This ObservationDefinition defines a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.

                  ShortDefinitions of related resources belonging to this kind of observation group
                  Control0..*
                  TypeReference(ObservationDefinition, Questionnaire)
                  Is Modifierfalse
                  Must Supporttrue
                  Must Support TypesNo must-support rules about the choice of types/profiles
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

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

                  0. ObservationDefinition
                  Definition

                  Set of definitional characteristics for a kind of observation or measurement produced or consumed by an orderable health care service.

                  ShortDefinition of an observation
                  Comments

                  An instance of this resource informs the consumer of a health-related service (such as a lab diagnostic test or panel) about how the observations used or produced by this service will look like.

                  Control0..*
                  Is Modifierfalse
                  Must Supportfalse
                  Summaryfalse
                  Invariantscnl-0: Name should be usable as an identifier for the module by machine processing applications such as code generation (name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$'))
                  obd-0: If permittedUnit exists, then permittedDataType=Quantity must exist. (permittedUnit.exists() implies (permittedDataType = 'Quantity').exists())
                  2. ObservationDefinition.id
                  Definition

                  The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

                  ShortLogical id of this artifact
                  Comments

                  Within the context of the FHIR RESTful interactions, the resource has an id except for cases like the create and conditional update. Otherwise, the use of the resouce id depends on the given use case.

                  Control0..1
                  Typeid
                  Is Modifierfalse
                  Must Supportfalse
                  Summarytrue
                  4. ObservationDefinition.meta
                  Definition

                  The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

                  ShortMetadata about the resource
                  Control0..1
                  TypeMeta
                  Is Modifierfalse
                  Must Supportfalse
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  6. ObservationDefinition.implicitRules
                  Definition

                  A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

                  ShortA set of rules under which this content was created
                  Comments

                  Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of its narrative along with other profiles, value sets, etc.

                  Control0..1
                  Typeuri
                  Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies its meaning or interpretation
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supportfalse
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  8. ObservationDefinition.language
                  Definition

                  The base language in which the resource is written.

                  ShortLanguage of the resource content
                  Comments

                  Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

                  Control0..1
                  BindingThe codes SHALL be taken from AllLanguages
                  (required to http://hl7.org/fhir/ValueSet/all-languages|5.0.0)

                  IETF language tag for a human language

                  Typecode
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supportfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  10. ObservationDefinition.text
                  Definition

                  A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

                  ShortText summary of the resource, for human interpretation
                  Comments

                  Contained resources do not have a narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

                  Control0..1
                  This element is affected by the following invariants: dom-6
                  TypeNarrative
                  Is Modifierfalse
                  Must Supportfalse
                  Summaryfalse
                  Alternate Namesnarrative, html, xhtml, display
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  12. ObservationDefinition.contained
                  Definition

                  These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.

                  ShortContained, inline Resources
                  Comments

                  This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags in their meta elements, but SHALL NOT have security labels.

                  Control0..*
                  This element is affected by the following invariants: dom-2, dom-4, dom-3, dom-5
                  TypeResource
                  Is Modifierfalse
                  Must Supportfalse
                  Summaryfalse
                  Alternate Namesinline resources, anonymous resources, contained resources
                  14. ObservationDefinition.extension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and managable, 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
                  Must Supportfalse
                  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())
                  16. ObservationDefinition.modifierExtension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it 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 managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to 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
                  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 resource that contains them
                  Must Supportfalse
                  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
                  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())
                  18. ObservationDefinition.url
                  Definition

                  An absolute URL that is used to identify this ObservationDefinition when it is referenced in a specification, model, design or an instance. This SHALL be a URL, SHOULD be globally unique, and SHOULD be an address at which this ObservationDefinition is (or will be) published. The URL SHOULD include the major version of the ObservationDefinition. For more information see Technical and Business Versions.

                  ShortLogical canonical URL to reference this ObservationDefinition (globally unique)
                  Comments

                  Can be a urn:uuid: or a urn:oid:, but real http: addresses are preferred. This is the URI that will be used when making canonical references to this resource.

                  Control0..1
                  Typeuri
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supportfalse
                  Summarytrue
                  Requirements

                  Allows the ObservationDefinition to be referenced by a single globally unique identifier.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  20. ObservationDefinition.identifier
                  Definition

                  Business identifiers assigned to this ObservationDefinition. by the performer and/or other systems. These identifiers remain constant as the resource is updated and propagates from server to server.

                  ShortBusiness identifier of the ObservationDefinition
                  Comments

                  This is a business identifier, not a resource identifier. It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types.

                  NoteThis is a business identifier, not a resource identifier (see discussion)
                  Control0..1
                  TypeIdentifier
                  Is Modifierfalse
                  Must Supportfalse
                  Summarytrue
                  Requirements

                  Allows identification of the ObservationDefinition as it is known by various participating systems and in a way that remains consistent across servers.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  22. ObservationDefinition.version
                  Definition

                  The identifier that is used to identify this version of the ObservationDefinition when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the ObservationDefinition author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions are orderable.

                  ShortBusiness version of the ObservationDefinition
                  Comments

                  There may be multiple different instances of an observationDefinition that have the same identifier but different versions.

                  NoteThis is a business versionId, not a resource version id (see discussion)
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supportfalse
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  24. ObservationDefinition.versionAlgorithm[x]
                  Definition

                  Indicates the mechanism used to compare versions to determine which is more current.

                  ShortHow to compare versions
                  Comments

                  If set as a string, this is a FHIRPath expression that has two additional context variables passed in - %version1 and %version2 and will return a negative number if version1 is newer, a positive number if version2 and a 0 if the version ordering can't be successfully be determined.

                  Control0..1
                  BindingUnless not suitable, these codes SHALL be taken from VersionAlgorithm
                  (extensible to http://hl7.org/fhir/ValueSet/version-algorithm)
                  TypeChoice of: string, Coding
                  [x] NoteSee Choice of Data Types for further information about how to use [x]
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supportfalse
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  26. ObservationDefinition.name
                  Definition

                  A natural language name identifying the ObservationDefinition. This name should be usable as an identifier for the module by machine processing applications such as code generation.

                  ShortName for this ObservationDefinition (computer friendly)
                  Comments

                  The name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly.

                  Control0..1
                  This element is affected by the following invariants: cnl-0
                  Typestring
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supportfalse
                  Summarytrue
                  Requirements

                  Support human navigation and code generation.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  28. ObservationDefinition.title
                  Definition

                  A short, descriptive, user-friendly title for the ObservationDefinition.

                  ShortName for this ObservationDefinition (human friendly)
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supportfalse
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  30. ObservationDefinition.title.id
                  Definition

                  unique id for the element within a resource (for internal references)

                  Shortxml:id (or equivalent in JSON)
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  32. ObservationDefinition.title.extension
                  Definition

                  An Extension

                  ShortExtension
                  Control0..*
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  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 ObservationDefinition.title.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 34. ObservationDefinition.title.extension:test-comment-title
                    Slice Nametest-comment-title
                    Definition

                    An Extension

                    Shorttest-comment-title
                    Control0..1
                    TypeExtension(Extension - Test Comment PQ) (Extension Type: string)
                    Is Modifierfalse
                    Must Supporttrue
                    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())
                    36. ObservationDefinition.title.value
                    Definition

                    The actual value

                    ShortPrimitive value for string
                    Control0..1
                    Typestring
                    Is Modifierfalse
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    Max Length1048576
                    38. ObservationDefinition.status
                    Definition

                    The current state of the ObservationDefinition.

                    Shortdraft | active | retired | unknown
                    Comments

                    A nominal state-transition diagram can be found in the Definition pattern documentation Unknown does not represent "other" - one of the defined statuses must apply. Unknown is used when the authoring system is not sure what the current status is.

                    See guidance around (not) making local changes to elements here.

                    Control1..1
                    BindingThe codes SHALL be taken from PublicationStatus
                    (required to http://hl7.org/fhir/ValueSet/publication-status|5.0.0)

                    Codes identifying the state of an ObservationDefinition.

                    Typecode
                    Is Modifiertrue because Not known why this is labelled a modifier
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    40. ObservationDefinition.experimental
                    Definition

                    A flag to indicate that this ObservationDefinition is authored for testing purposes (or education/evaluation/marketing), and is not intended to be used for genuine usage.

                    ShortIf for testing purposes, not real usage
                    Comments

                    Allows filtering of ObservationDefinition that are appropriate for use vs. not.

                    Control0..1
                    Typeboolean
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summarytrue
                    Meaning if MissingIf absent, this resource is treated as though it is not experimental.
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    42. ObservationDefinition.date
                    Definition

                    The date (and optionally time) when the ObservationDefinition was last significantly changed. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the ObservationDefinition changes.

                    ShortDate last changed
                    Comments

                    The date is often not tracked until the resource is published, but may be present on draft content. Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the ObservationDefinition. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.

                    See guidance around (not) making local changes to elements here.

                    Control0..1
                    TypedateTime
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summarytrue
                    Alternate Namesrevision date
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    44. ObservationDefinition.publisher
                    Definition

                    Helps establish the "authority/credibility" of the ObservationDefinition. May also allow for contact.

                    ShortThe name of the individual or organization that published the ObservationDefinition
                    Control0..1
                    Typestring
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summarytrue
                    Requirements

                    Usually an organization, but may be an individual. The publisher (or steward) of the ObservationDefinition is the organization or individual primarily responsible for the maintenance and upkeep of the ObservationDefinition. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the ObservationDefinition. This item SHOULD be populated unless the information is available from context.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    46. ObservationDefinition.contact
                    Definition

                    Contact details to assist a user in finding and communicating with the publisher.

                    ShortContact details for the publisher
                    Comments

                    May be a web site, an email address, a telephone number, etc.

                    See guidance around (not) making local changes to elements here.

                    Control0..*
                    TypeContactDetail
                    Is Modifierfalse
                    Must Supportfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    48. ObservationDefinition.description
                    Definition

                    A free text natural language description of the ObservationDefinition from the consumer's perspective.

                    ShortNatural language description of the ObservationDefinition
                    Comments

                    This description can be used to capture details such as comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the module as conveyed in the text field of the resource itself. This item SHOULD be populated unless the information is available from context.

                    Control0..1
                    Typemarkdown
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    50. ObservationDefinition.useContext
                    Definition

                    The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate ObservationDefinition instances.

                    ShortContent intends to support these contexts
                    Comments

                    When multiple usageContexts are specified, there is no expectation for whether all or any of the contexts apply.

                    Control0..*
                    TypeUsageContext
                    Is Modifierfalse
                    Must Supportfalse
                    Summarytrue
                    Requirements

                    Assist in searching for appropriate content.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    52. ObservationDefinition.jurisdiction
                    Definition

                    A jurisdiction in which the ObservationDefinition is intended to be used.

                    ShortIntended jurisdiction for this ObservationDefinition (if applicable)
                    Comments

                    It may be possible for the ObservationDefinition to be used in jurisdictions other than those for which it was originally designed or intended.

                    DEPRECATION NOTE: For consistency, implementations are encouraged to migrate to using the new 'jurisdiction' code in the useContext element. (I.e. useContext.code indicating http://terminology.hl7.org/CodeSystem/usage-context-type#jurisdiction and useContext.valueCodeableConcept indicating the jurisdiction.)

                    Control0..*
                    BindingUnless not suitable, these codes SHALL be taken from JurisdictionValueSet
                    (extensible to http://hl7.org/fhir/ValueSet/jurisdiction)

                    Codes for country, country subdivision and region for indicating where a resource is intended to be used.

                    TypeCodeableConcept
                    Is Modifierfalse
                    Must Supportfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    54. ObservationDefinition.purpose
                    Definition

                    Explains why this ObservationDefinition is needed and why it has been designed as it has.

                    ShortWhy this ObservationDefinition is defined
                    Comments

                    This element does not describe the usage of the ObservationDefinition. Rather it is for traceability of ''why'' the resource is either needed or ''why'' it is defined as it is. This may be used to point to source materials or specifications that drove the structure of this ObservationDefinition.

                    Control0..1
                    Typemarkdown
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    56. ObservationDefinition.copyright
                    Definition

                    Copyright statement relating to the ObservationDefinition and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the ObservationDefinition.

                    ShortUse and/or publishing restrictions
                    Control0..1
                    Typemarkdown
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summaryfalse
                    Requirements

                    Consumers of the ObservationDefinition must be able to determine any legal restrictions on the use of the artifact and/or its content.

                    Alternate NamesLicense, Restrictions
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    58. ObservationDefinition.copyrightLabel
                    Definition

                    A short string (<50 characters), suitable for inclusion in a page footer that identifies the copyright holder, effective period, and optionally whether rights are resctricted. (e.g. 'All rights reserved', 'Some rights reserved').

                    ShortCopyright holder and year(s)
                    Comments

                    The (c) symbol should NOT be included in this string. It will be added by software when rendering the notation. Full details about licensing, restrictions, warrantees, etc. goes in the more general 'copyright' element.

                    Control0..1
                    Typestring
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summaryfalse
                    Requirements

                    Defines the content expected to be rendered in all representations of the artifact.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    60. ObservationDefinition.approvalDate
                    Definition

                    The date on which the asset content was approved by the publisher. Approval happens once when the content is officially approved for usage.

                    ShortWhen ObservationDefinition was approved by publisher
                    Comments

                    The date may be more recent than the approval date because of minor changes / editorial corrections.

                    See guidance around (not) making local changes to elements here.

                    Control0..1
                    Typedate
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    62. ObservationDefinition.lastReviewDate
                    Definition

                    The date on which the asset content was last reviewed. Review happens periodically after that, but doesn't change the original approval date.

                    ShortDate on which the asset content was last reviewed by the publisher
                    Comments

                    If specified, this is usually after the approval date.

                    See guidance around (not) making local changes to elements here.

                    Control0..1
                    Typedate
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    64. ObservationDefinition.effectivePeriod
                    Definition

                    The period during which the ObservationDefinition content was or is planned to be effective.

                    ShortThe effective date range for the ObservationDefinition
                    Comments

                    The effective period for an ObservationDefinition determines when the content is applicable for usage and is independent of publication and review dates. For example, an observation definition intended to be used for the year 2021 might be published in 2020.

                    See guidance around (not) making local changes to elements here.

                    Control0..1
                    TypePeriod
                    Is Modifierfalse
                    Must Supportfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    66. ObservationDefinition.derivedFromCanonical
                    Definition

                    The canonical URL pointing to another FHIR-defined ObservationDefinition that is adhered to in whole or in part by this definition.

                    ShortBased on FHIR definition of another observation
                    Control0..*
                    Typecanonical(ObservationDefinition)
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    68. ObservationDefinition.derivedFromUri
                    Definition

                    The URL pointing to an externally-defined observation definition, guideline or other definition that is adhered to in whole or in part by this definition.

                    ShortBased on external definition
                    Control0..*
                    Typeuri
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summarytrue
                    Requirements

                    Observation definitions may be refinements of other definitions.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    70. ObservationDefinition.subject
                    Definition

                    A code that describes the intended kind of subject of Observation instances conforming to this ObservationDefinition.

                    ShortType of subject for the defined observation
                    Comments

                    Examples: person, animal, device, air, surface ….

                    Control0..*
                    TypeCodeableConcept
                    Is Modifierfalse
                    Must Supportfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    72. ObservationDefinition.performerType
                    Definition

                    The type of individual/organization/device that is expected to act upon instances of this definition.

                    ShortDesired kind of performer for such kind of observation
                    Control0..1
                    TypeCodeableConcept
                    Is Modifierfalse
                    Must Supportfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    74. ObservationDefinition.category
                    Definition

                    A code that classifies the general type of observation.

                    ShortGeneral type of observation
                    Comments

                    This element allows various categorization schemes based on the owner’s definition of the category and effectively multiple categories can be used for one instance of ObservationDefinition. The level of granularity is defined by the category concepts in the value set.

                    Control0..*
                    BindingFor example codes, see ObservationCategoryCodes
                    (example to http://hl7.org/fhir/ValueSet/observation-category)

                    Codes for high level observation categories.

                    TypeCodeableConcept
                    Is Modifierfalse
                    Must Supportfalse
                    Summarytrue
                    Requirements

                    Used for filtering what kinds of observations are retrieved and displayed.

                    Alternate NamesClass of observation
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    76. ObservationDefinition.code
                    Definition

                    Describes what will be observed. Sometimes this is called the observation "name".

                    ShortType of observation
                    Control1..1
                    BindingFor example codes, see Test Method
                    (example to http://hl7.org/fhir/uv/pharm-quality/ValueSet/vs-test-method-pq)
                    TypeCodeableConcept
                    Is Modifierfalse
                    Must Supporttrue
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    78. ObservationDefinition.permittedDataType
                    Definition

                    The data types allowed for the value element of the instance observations conforming to this ObservationDefinition.

                    ShortQuantity | CodeableConcept | string | boolean | integer | Range | Ratio | SampledData | time | dateTime | Period
                    Control0..*
                    This element is affected by the following invariants: obd-0
                    BindingThe codes SHALL be taken from ObservationDataType
                    (required to http://hl7.org/fhir/ValueSet/permitted-data-type|5.0.0)

                    Permitted data type for observation value.

                    Typecode
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summaryfalse
                    Example<br/><b>General</b>:CodeableConcept
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    80. ObservationDefinition.multipleResultsAllowed
                    Definition

                    Multiple results allowed for observations conforming to this ObservationDefinition.

                    ShortMultiple results allowed for conforming observations
                    Comments

                    An example of observation allowing multiple results is "bacteria identified by culture". Conversely, the measurement of a potassium level allows a single result.

                    Control0..1
                    Typeboolean
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summaryfalse
                    Example<br/><b>General</b>:true
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    82. ObservationDefinition.bodySite
                    Definition

                    The site on the subject's body where the observation is to be made.

                    ShortBody part to be observed
                    Comments

                    Only used if the defined observation is to be made directly on a body part and if this body part is not implied by code found in ObservationDefinition.code. Not used for in vitro diagnostic observations. Example: 14975008 |Forearm structure|.

                    Control0..1
                    BindingFor example codes, see SNOMEDCTBodyStructures
                    (example to http://hl7.org/fhir/ValueSet/body-site)

                    SNOMED CT body structures.

                    TypeCodeableConcept
                    Is Modifierfalse
                    Must Supportfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    84. ObservationDefinition.method
                    Definition

                    The method or technique used to perform the observation.

                    ShortMethod used to produce the observation
                    Comments

                    Only used if not implicit in observation code Example: 702659008 |Automated count technique|.

                    Control0..1
                    BindingFor example codes, see ObservationMethods
                    (example to http://hl7.org/fhir/ValueSet/observation-methods)

                    Methods for simple observations.

                    TypeCodeableConcept
                    Is Modifierfalse
                    Must Supporttrue
                    Summaryfalse
                    Requirements

                    In some cases, method can impact results.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    86. ObservationDefinition.specimen
                    Definition

                    The kind of specimen that this type of observation is produced on.

                    ShortKind of specimen used by this type of observation
                    Comments

                    Only used for in vitro observations. When multiple occurrences of specimen are present, they are to be combined with a logical AND: all specified specimens are needed for the observation.

                    Control0..*
                    TypeReference(SpecimenDefinition)
                    Is Modifierfalse
                    Must Supporttrue
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    88. ObservationDefinition.device
                    Definition

                    The measurement model of device or actual device used to produce observations of this type.

                    ShortMeasurement device or model of device
                    Comments

                    When multiple occurrences of device are present, they are to be combined with a logical OR: at least one of the specified devices is used to produce the observation.

                    Control0..*
                    TypeReference(DeviceDefinition, Device)
                    Is Modifierfalse
                    Must Supporttrue
                    Must Support TypesNo must-support rules about the choice of types/profiles
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    90. ObservationDefinition.preferredReportName
                    Definition

                    The preferred name to be used when reporting the results of observations conforming to this ObservationDefinition.

                    ShortThe preferred name to be used when reporting the observation results
                    Control0..1
                    Typestring
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supportfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    92. ObservationDefinition.permittedUnit
                    Definition

                    Units allowed for the valueQuantity element in the instance observations conforming to this ObservationDefinition.

                    ShortUnit for quantitative results
                    Control0..*
                    This element is affected by the following invariants: obd-0
                    BindingThe codes SHOULD be taken from UCUMCodes
                    (preferred to http://hl7.org/fhir/ValueSet/ucum-units)

                    Codes identifying units of measure.

                    TypeCoding
                    Is Modifierfalse
                    Must Supportfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    94. ObservationDefinition.qualifiedValue
                    Definition

                    A set of qualified values associated with a context and a set of conditions - provides a range for quantitative and ordinal observations and a collection of value sets for qualitative observations.

                    ShortSet of qualified values for observation results
                    Control0..*
                    TypeBackboneElement
                    Is Modifierfalse
                    Must Supporttrue
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    96. ObservationDefinition.qualifiedValue.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
                    This element is affected by the following invariants: ele-1
                    Typestring
                    Is Modifierfalse
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    98. ObservationDefinition.qualifiedValue.extension
                    Definition

                    An Extension

                    ShortExtension
                    Control0..*
                    TypeExtension
                    Is Modifierfalse
                    Summaryfalse
                    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 ObservationDefinition.qualifiedValue.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                    • value @ url
                    • 100. ObservationDefinition.qualifiedValue.extension:qualified-value-text
                      Slice Namequalified-value-text
                      Definition

                      An Extension

                      Shortqualified-value-text
                      Control0..*
                      TypeExtension(Extension - Qualified Value Text PQ) (Extension Type: string)
                      Is Modifierfalse
                      Must Supporttrue
                      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. ObservationDefinition.qualifiedValue.extension:qualified-value-display
                      Slice Namequalified-value-display
                      Definition

                      An Extension

                      Shortqualified-value-display
                      Control0..*
                      TypeExtension(Extension - Qualified Value Display PQ) (Extension Type: string)
                      Is Modifierfalse
                      Must Supporttrue
                      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())
                      104. ObservationDefinition.qualifiedValue.extension:qualified-value-target
                      Slice Namequalified-value-target
                      Definition

                      An Extension

                      Shortqualified-value-target
                      Control0..*
                      TypeExtension(Extension - Qualified Value Target PQ) (Extension Type: Quantity)
                      Is Modifierfalse
                      Must Supporttrue
                      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())
                      106. ObservationDefinition.qualifiedValue.extension:qualified-value-criticality
                      Slice Namequalified-value-criticality
                      Definition

                      An Extension

                      Shortqualified-value-criticality
                      Control0..*
                      TypeExtension(Extension - Qualified Value Criticality PQ) (Extension Type: CodeableConcept)
                      Is Modifierfalse
                      Must Supporttrue
                      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())
                      108. ObservationDefinition.qualifiedValue.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 managable, 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())
                      110. ObservationDefinition.qualifiedValue.context
                      Definition

                      A concept defining the context for this set of qualified values.

                      ShortContext qualifier for the set of qualified values
                      Control0..1
                      BindingUnless not suitable, these codes SHALL be taken from ObservationReferenceRangeMeaningCodes
                      (extensible to http://hl7.org/fhir/ValueSet/referencerange-meaning)
                      TypeCodeableConcept
                      Is Modifierfalse
                      Must Supportfalse
                      Summaryfalse
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      112. ObservationDefinition.qualifiedValue.appliesTo
                      Definition

                      The target population this set of qualified values applies to.

                      ShortTargetted population for the set of qualified values
                      Comments

                      If this element is not present then the global population is assumed.

                      Control0..*
                      BindingFor example codes, see ObservationReferenceRangeAppliesToCodes
                      (example to http://hl7.org/fhir/ValueSet/referencerange-appliesto)
                      TypeCodeableConcept
                      Is Modifierfalse
                      Must Supportfalse
                      Summaryfalse
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      114. ObservationDefinition.qualifiedValue.appliesTo.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
                      This element is affected by the following invariants: ele-1
                      Typeid
                      Is Modifierfalse
                      XML FormatIn the XML format, this property is represented as an attribute.
                      Summaryfalse
                      116. ObservationDefinition.qualifiedValue.appliesTo.extension
                      Definition

                      An Extension

                      ShortExtension
                      Control0..*
                      TypeExtension
                      Is Modifierfalse
                      Summaryfalse
                      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 ObservationDefinition.qualifiedValue.appliesTo.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 118. ObservationDefinition.qualifiedValue.appliesTo.extension:test-comment
                        Slice Nametest-comment
                        Definition

                        An Extension

                        Shorttest-comment
                        Control0..1
                        TypeExtension(Extension - Test Comment PQ) (Extension Type: string)
                        Is Modifierfalse
                        Must Supporttrue
                        Summaryfalse
                        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())
                        120. ObservationDefinition.qualifiedValue.appliesTo.coding
                        Definition

                        A reference to a code defined by a terminology system.

                        ShortCode defined by a terminology system
                        Comments

                        Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                        Control0..*
                        TypeCoding
                        Is Modifierfalse
                        Summarytrue
                        Requirements

                        Allows for alternative encodings within a code system, and translations to other code systems.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        122. ObservationDefinition.qualifiedValue.appliesTo.text
                        Definition

                        A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                        ShortPlain text representation of the concept
                        Comments

                        Very often the text is the same as a displayName of one of the codings.

                        Control0..1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summarytrue
                        Requirements

                        The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        124. ObservationDefinition.qualifiedValue.gender
                        Definition

                        The gender this set of qualified values applies to.

                        Shortmale | female | other | unknown
                        Control0..1
                        BindingThe codes SHALL be taken from AdministrativeGender
                        (required to http://hl7.org/fhir/ValueSet/administrative-gender|5.0.0)
                        Typecode
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supportfalse
                        Summaryfalse
                        Example<br/><b>General</b>:female
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        126. ObservationDefinition.qualifiedValue.age
                        Definition

                        The age range this set of qualified values applies to.

                        ShortApplicable age range for the set of qualified values
                        Comments

                        Some analytes vary greatly over age.

                        Control0..1
                        TypeRange
                        Is Modifierfalse
                        Must Supportfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        128. ObservationDefinition.qualifiedValue.gestationalAge
                        Definition

                        The gestational age this set of qualified values applies to.

                        ShortApplicable gestational age range for the set of qualified values
                        Control0..1
                        TypeRange
                        Is Modifierfalse
                        Must Supportfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        130. ObservationDefinition.qualifiedValue.condition
                        Definition

                        Text based condition for which the the set of qualified values is valid.

                        ShortCondition associated with the set of qualified values
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supportfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        132. ObservationDefinition.qualifiedValue.rangeCategory
                        Definition

                        The category of range of values for continuous or ordinal observations that match the criteria of this set of qualified values.

                        Shortreference | critical | absolute
                        Control0..1
                        BindingThe codes SHALL be taken from ObservationRangeCategory
                        (required to http://hl7.org/fhir/ValueSet/observation-range-category|5.0.0)
                        Typecode
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supportfalse
                        Summaryfalse
                        Example<br/><b>General</b>:critical
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        134. ObservationDefinition.qualifiedValue.range
                        Definition

                        The range of values defined for continuous or ordinal observations that match the criteria of this set of qualified values.

                        ShortThe range for continuous or ordinal observations
                        Control0..1
                        TypeRange
                        Is Modifierfalse
                        Must Supporttrue
                        Summaryfalse
                        Requirements

                        The unit may be not relevant for ordinal values. In case it is there, it is the same as ObservationDefinition.unit.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        136. ObservationDefinition.qualifiedValue.range.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
                        This element is affected by the following invariants: ele-1
                        Typeid
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        138. ObservationDefinition.qualifiedValue.range.extension
                        Definition

                        An Extension

                        ShortExtension
                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        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 ObservationDefinition.qualifiedValue.range.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                        • value @ url
                        • 140. ObservationDefinition.qualifiedValue.range.extension:qualified-value-target
                          Slice Namequalified-value-target
                          Definition

                          An Extension

                          Shortqualified-value-target
                          Control0..1
                          TypeExtension(Extension - Qualified Value Target PQ) (Extension Type: Quantity)
                          Is Modifierfalse
                          Must Supporttrue
                          Summaryfalse
                          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())
                          142. ObservationDefinition.qualifiedValue.range.low
                          Definition

                          The low limit. The boundary is inclusive.

                          ShortLow limit
                          Comments

                          If the low element is missing, the low boundary is not known.

                          Control0..1
                          This element is affected by the following invariants: rng-2
                          TypeQuantity(SimpleQuantity)
                          Is Modifierfalse
                          Summarytrue
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          144. ObservationDefinition.qualifiedValue.range.high
                          Definition

                          The high limit. The boundary is inclusive.

                          ShortHigh limit
                          Comments

                          If the high element is missing, the high boundary is not known.

                          Control0..1
                          This element is affected by the following invariants: rng-2
                          TypeQuantity(SimpleQuantity)
                          Is Modifierfalse
                          Summarytrue
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          146. ObservationDefinition.qualifiedValue.validCodedValueSet
                          Definition

                          The set of valid coded results for qualitative observations that match the criteria of this set of qualified values.

                          ShortValue set of valid coded values as part of this set of qualified values
                          Control0..1
                          Typecanonical(ValueSet)
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Must Supportfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          148. ObservationDefinition.qualifiedValue.normalCodedValueSet
                          Definition

                          The set of normal coded results for qualitative observations that match the criteria of this set of qualified values.

                          ShortValue set of normal coded values as part of this set of qualified values
                          Control0..1
                          Typecanonical(ValueSet)
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Must Supportfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          150. ObservationDefinition.qualifiedValue.abnormalCodedValueSet
                          Definition

                          The set of abnormal coded results for qualitative observations that match the criteria of this set of qualified values.

                          ShortValue set of abnormal coded values as part of this set of qualified values
                          Control0..1
                          Typecanonical(ValueSet)
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Must Supportfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          152. ObservationDefinition.qualifiedValue.criticalCodedValueSet
                          Definition

                          The set of critical coded results for qualitative observations that match the criteria of this set of qualified values.

                          ShortValue set of critical coded values as part of this set of qualified values
                          Control0..1
                          Typecanonical(ValueSet)
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Must Supportfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          154. ObservationDefinition.hasMember
                          Definition

                          This ObservationDefinition defines a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.

                          ShortDefinitions of related resources belonging to this kind of observation group
                          Control0..*
                          TypeReference(ObservationDefinition, Questionnaire)
                          Is Modifierfalse
                          Must Supporttrue
                          Must Support TypesNo must-support rules about the choice of types/profiles
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          156. ObservationDefinition.component
                          Definition

                          Some observations have multiple component observations, expressed as separate code value pairs.

                          ShortComponent results
                          Control0..*
                          TypeBackboneElement
                          Is Modifierfalse
                          Must Supportfalse
                          Summaryfalse
                          Requirements

                          Component observations share the same attributes as the primary observation and are always treated as a part of it (they are not separable).

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          obd-1: If permittedUnit exists, then permittedDataType=Quantity must exist. (permittedUnit.exists() implies (permittedDataType = 'Quantity').exists())
                          158. ObservationDefinition.component.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
                          This element is affected by the following invariants: ele-1
                          Typestring
                          Is Modifierfalse
                          XML FormatIn the XML format, this property is represented as an attribute.
                          Summaryfalse
                          160. ObservationDefinition.component.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 managable, 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())
                          162. ObservationDefinition.component.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 managable, 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())
                          164. ObservationDefinition.component.code
                          Definition

                          Describes what will be observed.

                          ShortType of observation
                          Control1..1
                          BindingFor example codes, see LOINCCodes
                          (example to http://hl7.org/fhir/ValueSet/observation-codes)

                          Codes identifying names of simple observations.

                          TypeCodeableConcept
                          Is Modifierfalse
                          Must Supportfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          166. ObservationDefinition.component.permittedDataType
                          Definition

                          The data types allowed for the value element of the instance of this component observations.

                          ShortQuantity | CodeableConcept | string | boolean | integer | Range | Ratio | SampledData | time | dateTime | Period
                          Control0..*
                          This element is affected by the following invariants: obd-1
                          BindingThe codes SHALL be taken from ObservationDataType
                          (required to http://hl7.org/fhir/ValueSet/permitted-data-type|5.0.0)

                          Permitted data type for observation value.

                          Typecode
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Must Supportfalse
                          Summaryfalse
                          Example<br/><b>General</b>:CodeableConcept
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          168. ObservationDefinition.component.permittedUnit
                          Definition

                          Units allowed for the valueQuantity element in the instance observations conforming to this ObservationDefinition.

                          ShortUnit for quantitative results
                          Control0..*
                          This element is affected by the following invariants: obd-1
                          BindingThe codes SHOULD be taken from UCUMCodes
                          (preferred to http://hl7.org/fhir/ValueSet/ucum-units)

                          Codes identifying units of measure.

                          TypeCoding
                          Is Modifierfalse
                          Must Supportfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          170. ObservationDefinition.component.qualifiedValue
                          Definition

                          A set of qualified values associated with a context and a set of conditions - provides a range for quantitative and ordinal observations and a collection of value sets for qualitative observations.

                          ShortSet of qualified values for observation results
                          Control0..*
                          TypeSee ttp://hl7.org/fhir/StructureDefinition/ObservationDefinition#ObservationDefinition.qualifiedValue
                          Is Modifierfalse
                          Must Supportfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))