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DRAFT Implementation Guide

This is for collaboration and discussion purposes and is subject to change.

North West Genomics Testing Workflow (GTW) - Local Development build (v0.0.1) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Resource Profile: Condition - Detailed Descriptions

Draft as of 2025-02-23

Definitions for the Condition resource profile.

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

0. Condition

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

0. Condition
Definition

A clinical condition, problem, diagnosis, or other event, situation, issue, or clinical concept that has risen to a level of concern.

ShortDetailed information about conditions, problems or diagnoses
Control0..*
Is Modifierfalse
Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
con-5: Condition.clinicalStatus SHALL NOT be present if verification Status is entered-in-error (verificationStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-ver-status' and code='entered-in-error').empty() or clinicalStatus.empty())
con-4: If condition is abated, then clinicalStatus must be either inactive, resolved, or remission (abatement.empty() or clinicalStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-clinical' and (code='resolved' or code='remission' or code='inactive')).exists())
con-3: Condition.clinicalStatus SHALL be present if verificationStatus is not entered-in-error and category is problem-list-item (clinicalStatus.exists() or verificationStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-ver-status' and code = 'entered-in-error').exists() or category.select($this='problem-list-item').empty())
con-3: Condition.clinicalStatus SHALL be present if verificationStatus is not entered-in-error and category is problem-list-item (clinicalStatus.exists() or verificationStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-ver-status' and code = 'entered-in-error').exists() or category.select($this='problem-list-item').empty())
con-4: If condition is abated, then clinicalStatus must be either inactive, resolved, or remission (abatement.empty() or clinicalStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-clinical' and (code='resolved' or code='remission' or code='inactive')).exists())
con-5: Condition.clinicalStatus SHALL NOT be present if verification Status is entered-in-error (verificationStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-ver-status' and code='entered-in-error').empty() or clinicalStatus.empty())
2. Condition.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 it's narrative along with other profiles, value sets, etc.

Control0..1
This element is affected by the following invariants: ele-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 it's meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. Condition.extension:bodyStructureR6
Slice NamebodyStructureR6
Definition

Optional Extension Element - found in all resources.

ShortAn extension to replicate the changes within R6 to support adding a reference to the body part affected by the diagnosed condition.
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..1
This element is affected by the following invariants: ele-1
TypeExtension(Extension UK Core Condition Body Structure) (Extension Type: Reference(BodyStructure))
Is Modifierfalse
Standard StatusNormative (from Trial Use)
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())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
6. Condition.extension:conditionEpisode
Slice NameconditionEpisode
Definition

The episodicity status of a condition.

ShortThe episodicity value of the condition can be represented by one of the following codes: \nfirst | new | review | end.
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..*
This element is affected by the following invariants: ele-1
TypeExtension(Extension UK Core Condition Episode) (Extension Type: CodeableConcept)
Standard StatusNormative (from Trial Use)
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())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
8. Condition.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 manageable, 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..*
This element is affected by the following invariants: ele-1
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
Standard StatusNormative (from Trial Use)
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())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Condition.modifierExtension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 10. Condition.clinicalStatus
    Definition

    The clinical status of the condition.

    ShortThe clinical status of the condition.active | recurrence | relapse | inactive | remission | resolved
    Comments

    The data type is CodeableConcept because clinicalStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity.

    Control0..1
    This element is affected by the following invariants: ele-1, con-3, con-4, con-5
    BindingThe codes SHALL be taken from ConditionClinicalStatusCodeshttp://hl7.org/fhir/ValueSet/condition-clinical|4.0.1
    (required to http://hl7.org/fhir/ValueSet/condition-clinical|4.0.1)

    The clinical status of the condition or diagnosis.

    TypeCodeableConcept
    Is Modifiertrue because This element is labeled as a modifier because the status contains codes that mark the condition as no longer active.
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    12. Condition.verificationStatus
    Definition

    The verification status to support the clinical status of the condition.

    ShortThe verification status to support the clinical status of the condition.unconfirmed | provisional | differential | confirmed | refuted | entered-in-error
    Comments

    verificationStatus is not required. For example, when a patient has abdominal pain in the ED, there is not likely going to be a verification status. The data type is CodeableConcept because verificationStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity.

    Control0..1
    This element is affected by the following invariants: ele-1, con-3, con-5
    BindingThe codes SHALL be taken from ConditionVerificationStatushttp://hl7.org/fhir/ValueSet/condition-ver-status|4.0.1
    (required to http://hl7.org/fhir/ValueSet/condition-ver-status|4.0.1)

    The verification status to support or decline the clinical status of the condition or diagnosis.

    TypeCodeableConcept
    Is Modifiertrue because This element is labeled as a modifier because the status contains the code refuted and entered-in-error that mark the Condition as not currently valid.
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    14. Condition.severity
    Definition

    A subjective assessment of the severity of the condition as evaluated by the clinician.

    ShortA subjective assessment of the severity of the condition as evaluated by the clinician.Subjective severity of condition
    Comments

    Coding of the severity with a terminology is preferred, where possible.

    Control0..1
    This element is affected by the following invariants: ele-1
    BindingThe codes SHOULD be taken from Condition/DiagnosisSeverityhttp://hl7.org/fhir/ValueSet/condition-severity
    (preferred to http://hl7.org/fhir/ValueSet/condition-severity)

    A subjective assessment of the severity of the condition as evaluated by the clinician.

    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    16. Condition.code
    Definition

    Identification of the condition, problem or diagnosis.

    ShortIdentification of the condition, problem or diagnosis.
    Comments

    Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

    Control0..1
    This element is affected by the following invariants: ele-1
    BindingThe codes SHOULD be taken from For example codes, see UK Core Condition Codehttp://hl7.org/fhir/ValueSet/condition-code
    (preferred to https://fhir.hl7.org.uk/ValueSet/UKCore-ConditionCode)

    A code from the SNOMED Clinical Terminology UK with the expression (<404684003 |Clinical finding| OR <413350009 |Finding with explicit context| OR <272379006 |Event|).


    Identification of the condition or diagnosis.

    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Requirements

    0..1 to account for primarily narrative only resources.

    Alternate Namestype
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    18. Condition.subject
    Definition

    Indicates the patient or group who the condition record is associated with.

    ShortIndicates the patient or group who the condition record is associated with.Who has the condition?
    Comments

    References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

    Control1..1
    This element is affected by the following invariants: ele-1
    TypeReference(Patient, Group)
    Is Modifierfalse
    Must Supporttrue
    Must Support TypesNo must-support rules about the choice of types/profiles
    Summarytrue
    Requirements

    Group is typically used for veterinary or public health use cases.

    Alternate Namespatient
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
    20. Condition.abatement[x]
    Definition

    The date or estimated date that the condition resolved or went into remission. This is called "abatement" because of the many overloaded connotations associated with "remission" or "resolution" - Conditions are never really resolved, but they can abate.

    ShortWhen in resolution/remission
    Comments

    There is no explicit distinction between resolution and remission because in many cases the distinction is not clear. Age is generally used when the patient reports an age at which the Condition abated. If there is no abatement element, it is unknown whether the condition has resolved or entered remission; applications and users should generally assume that the condition is still valid. When abatementString exists, it implies the condition is abated.

    Control0..1
    This element is affected by the following invariants: ele-1, con-4
    TypeChoice of: dateTime, Age, Period, Range, string
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    22. Condition.recorder
    Definition

    Individual who recorded the record and takes responsibility for its content.

    ShortIndividual who recorded the record and takes responsibility for its content.Who recorded the condition
    Comments

    References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

    Control0..1
    This element is affected by the following invariants: ele-1
    TypeReference(Practitioner, PractitionerRole, Patient, RelatedPerson)
    Is Modifierfalse
    Must Supporttrue
    Must Support TypesNo must-support rules about the choice of types/profiles
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))

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

    0. Condition
    Definition

    A clinical condition, problem, diagnosis, or other event, situation, issue, or clinical concept that has risen to a level of concern.

    ShortDetailed information about conditions, problems or diagnoses
    Control0..*
    Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
    dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
    dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
    dom-6: A resource should have narrative for robust management (text.`div`.exists())
    dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
    con-5: Condition.clinicalStatus SHALL NOT be present if verification Status is entered-in-error (verificationStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-ver-status' and code='entered-in-error').empty() or clinicalStatus.empty())
    con-4: If condition is abated, then clinicalStatus must be either inactive, resolved, or remission (abatement.empty() or clinicalStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-clinical' and (code='resolved' or code='remission' or code='inactive')).exists())
    con-3: Condition.clinicalStatus SHALL be present if verificationStatus is not entered-in-error and category is problem-list-item (clinicalStatus.exists() or verificationStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-ver-status' and code = 'entered-in-error').exists() or category.select($this='problem-list-item').empty())
    2. Condition.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

    The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

    Control0..1
    Typeid
    Summarytrue
    4. Condition.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
    This element is affected by the following invariants: ele-1
    TypeMeta
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    6. Condition.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 it's narrative along with other profiles, value sets, etc.

    Control0..1
    This element is affected by the following invariants: ele-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 it's meaning or interpretation
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    8. Condition.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
    This element is affected by the following invariants: ele-1
    BindingThe codes SHOULD be taken from CommonLanguages
    (preferred to http://hl7.org/fhir/ValueSet/languages)

    A human language.

    Additional BindingsPurpose
    AllLanguagesMax Binding
    Typecode
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    10. Condition.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 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: ele-1
    TypeNarrative
    Alternate Namesnarrative, html, xhtml, display
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    12. Condition.contained
    Definition

    These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

    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..*
    TypeResource
    Alternate Namesinline resources, anonymous resources, contained resources
    14. Condition.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 manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

    ShortAdditional content defined by implementations
    Comments

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

    Control0..*
    This element is affected by the following invariants: ele-1
    TypeExtension
    Standard StatusNormative (from Trial Use)
    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 Condition.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 16. Condition.extension:bodyStructureR6
      Slice NamebodyStructureR6
      Definition

      Optional Extension Element - found in all resources.

      ShortAn extension to replicate the changes within R6 to support adding a reference to the body part affected by the diagnosed condition.
      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..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Extension UK Core Condition Body Structure) (Extension Type: Reference(BodyStructure))
      Is Modifierfalse
      Standard StatusNormative (from Trial Use)
      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. Condition.extension:conditionEpisode
      Slice NameconditionEpisode
      Definition

      The episodicity status of a condition.

      ShortThe episodicity value of the condition can be represented by one of the following codes: \nfirst | new | review | end.
      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..*
      This element is affected by the following invariants: ele-1
      TypeExtension(Extension UK Core Condition Episode) (Extension Type: CodeableConcept)
      Standard StatusNormative (from Trial Use)
      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())
      20. Condition.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 manageable, 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..*
      This element is affected by the following invariants: ele-1
      TypeExtension
      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
      Standard StatusNormative (from Trial Use)
      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())
      SlicingThis element introduces a set of slices on Condition.modifierExtension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 22. Condition.identifier
        Definition

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

        ShortExternal Ids for this condition
        Comments

        This is a business identifier, not a resource identifier (see discussion). 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. For example, multiple Patient and a Person resource instance might share the same social insurance number.

        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control0..*
        This element is affected by the following invariants: ele-1
        TypeIdentifier
        Summarytrue
        Requirements

        Allows identification of the condition 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()))
        24. Condition.clinicalStatus
        Definition

        The clinical status of the condition.

        ShortThe clinical status of the condition.
        Comments

        The data type is CodeableConcept because clinicalStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity.

        Control0..1
        This element is affected by the following invariants: ele-1, con-3, con-4, con-5
        BindingThe codes SHALL be taken from ConditionClinicalStatusCodes
        (required to http://hl7.org/fhir/ValueSet/condition-clinical|4.0.1)

        The clinical status of the condition or diagnosis.

        TypeCodeableConcept
        Is Modifiertrue because This element is labeled as a modifier because the status contains codes that mark the condition as no longer active.
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        26. Condition.verificationStatus
        Definition

        The verification status to support the clinical status of the condition.

        ShortThe verification status to support the clinical status of the condition.
        Comments

        verificationStatus is not required. For example, when a patient has abdominal pain in the ED, there is not likely going to be a verification status. The data type is CodeableConcept because verificationStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity.

        Control0..1
        This element is affected by the following invariants: ele-1, con-3, con-5
        BindingThe codes SHALL be taken from ConditionVerificationStatus
        (required to http://hl7.org/fhir/ValueSet/condition-ver-status|4.0.1)

        The verification status to support or decline the clinical status of the condition or diagnosis.

        TypeCodeableConcept
        Is Modifiertrue because This element is labeled as a modifier because the status contains the code refuted and entered-in-error that mark the Condition as not currently valid.
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        28. Condition.category
        Definition

        A category assigned to the condition.

        Shortproblem-list-item | encounter-diagnosis
        Comments

        The categorization is often highly contextual and may appear poorly differentiated or not very useful in other contexts.

        Control0..*
        This element is affected by the following invariants: ele-1
        BindingUnless not suitable, these codes SHALL be taken from UK Core Condition Category
        (extensible to https://fhir.hl7.org.uk/ValueSet/UKCore-ConditionCategory)

        A ValueSet to identify the category of a condition.

        TypeCodeableConcept
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        30. Condition.severity
        Definition

        A subjective assessment of the severity of the condition as evaluated by the clinician.

        ShortA subjective assessment of the severity of the condition as evaluated by the clinician.
        Comments

        Coding of the severity with a terminology is preferred, where possible.

        Control0..1
        This element is affected by the following invariants: ele-1
        BindingThe codes SHOULD be taken from Condition/DiagnosisSeverity
        (preferred to http://hl7.org/fhir/ValueSet/condition-severity)

        A subjective assessment of the severity of the condition as evaluated by the clinician.

        TypeCodeableConcept
        Must Supporttrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        32. Condition.code
        Definition

        Identification of the condition, problem or diagnosis.

        ShortIdentification of the condition, problem or diagnosis.
        Comments

        Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

        Control0..1
        This element is affected by the following invariants: ele-1
        BindingThe codes SHOULD be taken from UK Core Condition Code
        (preferred to https://fhir.hl7.org.uk/ValueSet/UKCore-ConditionCode)

        A code from the SNOMED Clinical Terminology UK with the expression (<404684003 |Clinical finding| OR <413350009 |Finding with explicit context| OR <272379006 |Event|).

        TypeCodeableConcept
        Must Supporttrue
        Summarytrue
        Requirements

        0..1 to account for primarily narrative only resources.

        Alternate Namestype
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        34. Condition.bodySite
        Definition

        The anatomical location where this condition manifests itself.

        ShortAnatomical location, if relevant
        Comments

        Only used if not implicit in code found in Condition.code. If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension bodySite. May be a summary code, or a reference to a very precise definition of the location, or both.

        Control0..*
        This element is affected by the following invariants: ele-1
        BindingThe codes SHOULD be taken from SNOMEDCTBodyStructures
        (preferred to http://hl7.org/fhir/ValueSet/body-site)

        Codes describing anatomical locations. May include laterality.

        TypeCodeableConcept
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        36. Condition.subject
        Definition

        Indicates the patient or group who the condition record is associated with.

        ShortIndicates the patient or group who the condition record is associated with.
        Comments

        References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

        Control1..1
        This element is affected by the following invariants: ele-1
        TypeReference(Patient, Group)
        Must Supporttrue
        Must Support TypesNo must-support rules about the choice of types/profiles
        Summarytrue
        Requirements

        Group is typically used for veterinary or public health use cases.

        Alternate Namespatient
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
        38. Condition.encounter
        Definition

        The Encounter during which this Condition was created or to which the creation of this record is tightly associated.

        ShortEncounter created as part of
        Comments

        This will typically be the encounter the event occurred within, but some activities may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter. This record indicates the encounter this particular record is associated with. In the case of a "new" diagnosis reflecting ongoing/revised information about the condition, this might be distinct from the first encounter in which the underlying condition was first "known".

        Control0..1
        This element is affected by the following invariants: ele-1
        TypeReference(Encounter)
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
        40. Condition.onset[x]
        Definition

        Estimated or actual date or date-time the condition began, in the opinion of the clinician.

        ShortEstimated or actual date, date-time, or age
        Comments

        Age is generally used when the patient reports an age at which the Condition began to occur.

        Control0..1
        This element is affected by the following invariants: ele-1
        TypeChoice of: dateTime, Age, Period, Range, string
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        42. Condition.abatement[x]
        Definition

        The date or estimated date that the condition resolved or went into remission. This is called "abatement" because of the many overloaded connotations associated with "remission" or "resolution" - Conditions are never really resolved, but they can abate.

        ShortWhen in resolution/remission
        Comments

        There is no explicit distinction between resolution and remission because in many cases the distinction is not clear. Age is generally used when the patient reports an age at which the Condition abated. If there is no abatement element, it is unknown whether the condition has resolved or entered remission; applications and users should generally assume that the condition is still valid. When abatementString exists, it implies the condition is abated.

        Control0..1
        This element is affected by the following invariants: ele-1, con-4
        TypeChoice of: dateTime, Age, Period, Range, string
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        44. Condition.recordedDate
        Definition

        The recordedDate represents when this particular Condition record was created in the system, which is often a system-generated date.

        ShortDate record was first recorded
        Control0..1
        This element is affected by the following invariants: ele-1
        TypedateTime
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        46. Condition.recorder
        Definition

        Individual who recorded the record and takes responsibility for its content.

        ShortIndividual who recorded the record and takes responsibility for its content.
        Comments

        References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

        Control0..1
        This element is affected by the following invariants: ele-1
        TypeReference(Practitioner, PractitionerRole, Patient, RelatedPerson)
        Must Supporttrue
        Must Support TypesNo must-support rules about the choice of types/profiles
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
        48. Condition.asserter
        Definition

        Individual who is making the condition statement.

        ShortPerson who asserts this condition
        Comments

        References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

        Control0..1
        This element is affected by the following invariants: ele-1
        TypeReference(Practitioner, PractitionerRole, Patient, RelatedPerson)
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
        50. Condition.stage
        Definition

        Clinical stage or grade of a condition. May include formal severity assessments.

        ShortStage/grade, usually assessed formally
        Control0..*
        This element is affected by the following invariants: ele-1
        TypeBackboneElement
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        con-1: Stage SHALL have summary or assessment (summary.exists() or assessment.exists())
        52. Condition.stage.id
        Definition

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

        ShortUnique id for inter-element referencing
        Control0..1
        Typestring
        XML FormatIn the XML format, this property is represented as an attribute.
        54. Condition.stage.extension
        Definition

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

        ShortAdditional content defined by implementations
        Comments

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

        Control0..*
        This element is affected by the following invariants: ele-1
        TypeExtension
        Standard StatusNormative (from Trial Use)
        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 Condition.stage.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 56. Condition.stage.modifierExtension
          Definition

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

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

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

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

          Control0..*
          This element is affected by the following invariants: ele-1
          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())
          58. Condition.stage.summary
          Definition

          A simple summary of the stage such as "Stage 3". The determination of the stage is disease-specific.

          ShortSimple summary (disease specific)
          Comments

          Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

          Control0..1
          This element is affected by the following invariants: ele-1, con-1
          BindingFor example codes, see ConditionStage
          (example to http://hl7.org/fhir/ValueSet/condition-stage)

          Codes describing condition stages (e.g. Cancer stages).

          TypeCodeableConcept
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          60. Condition.stage.assessment
          Definition

          Reference to a formal record of the evidence on which the staging assessment is based.

          ShortFormal record of assessment
          Comments

          References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

          Control0..*
          This element is affected by the following invariants: ele-1, con-1
          TypeReference(ClinicalImpression, DiagnosticReport, Observation)
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
          62. Condition.stage.type
          Definition

          The kind of staging, such as pathological or clinical staging.

          ShortKind of staging
          Comments

          Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

          Control0..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see ConditionStageType
          (example to http://hl7.org/fhir/ValueSet/condition-stage-type)

          Codes describing the kind of condition staging (e.g. clinical or pathological).

          TypeCodeableConcept
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          64. Condition.evidence
          Definition

          Supporting evidence / manifestations that are the basis of the Condition's verification status, such as evidence that confirmed or refuted the condition.

          ShortSupporting evidence
          Comments

          The evidence may be a simple list of coded symptoms/manifestations, or references to observations or formal assessments, or both.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          con-2: evidence SHALL have code or details (code.exists() or detail.exists())
          66. Condition.evidence.id
          Definition

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

          ShortUnique id for inter-element referencing
          Control0..1
          Typestring
          XML FormatIn the XML format, this property is represented as an attribute.
          68. Condition.evidence.extension
          Definition

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

          ShortAdditional content defined by implementations
          Comments

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

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Standard StatusNormative (from Trial Use)
          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 Condition.evidence.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 70. Condition.evidence.modifierExtension
            Definition

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

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

            ShortExtensions that cannot be ignored even if unrecognized
            Comments

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

            Control0..*
            This element is affected by the following invariants: ele-1
            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())
            72. Condition.evidence.code
            Definition

            A manifestation or symptom that led to the recording of this condition.

            ShortManifestation/symptom
            Comments

            Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

            Control0..*
            This element is affected by the following invariants: ele-1, con-2
            BindingFor example codes, see ManifestationAndSymptomCodes
            (example to http://hl7.org/fhir/ValueSet/manifestation-or-symptom)

            Codes that describe the manifestation or symptoms of a condition.

            TypeCodeableConcept
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            74. Condition.evidence.detail
            Definition

            Links to other relevant information, including pathology reports.

            ShortSupporting information found elsewhere
            Comments

            References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

            Control0..*
            This element is affected by the following invariants: ele-1, con-2
            TypeReference(Resource)
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
            76. Condition.note
            Definition

            Additional information about the Condition. This is a general notes/comments entry for description of the Condition, its diagnosis and prognosis.

            ShortAdditional information about the Condition
            Comments

            For systems that do not have structured annotations, they can simply communicate a single annotation with no author or time. This element may need to be included in narrative because of the potential for modifying information. Annotations SHOULD NOT be used to communicate "modifying" information that could be computable. (This is a SHOULD because enforcing user behavior is nearly impossible).

            Control0..*
            This element is affected by the following invariants: ele-1
            TypeAnnotation
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))