Polska specyfikacja bazowa HL7 FHIR (HL7 FHIR PL Base)
0.1.2 - ci-build

Polska specyfikacja bazowa HL7 FHIR (HL7 FHIR PL Base), published by HL7 Poland. This guide is not an authorized publication; it is the continuous build for version 0.1.2 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7-Poland/pl-fhir-base/ and changes regularly. See the Directory of published versions

Resource Profile: PLBaseDiagnosis - Detailed Descriptions

Draft as of 2025-09-03

Definitions for the pl-base-condition-diagnosis resource profile.

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

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
Must Supportfalse
Summaryfalse
Invariantscon-2: If category is problems list item, the clinicalStatus should not be unknown (category.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-category' and code='problem-list-item').exists() implies clinicalStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-clinical' and code='unknown').exists().not())
con-3: If condition is abated, then clinicalStatus must be either inactive, resolved, or remission. (abatement.exists() implies (clinicalStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-clinical' and (code='inactive' or code='resolved' or code='remission')).exists()))
dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.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().ofType(canonical) | %resource.descendants().ofType(uri) | %resource.descendants().ofType(url))) or descendants().where(reference = '#').exists() or descendants().where(ofType(canonical) = '#').exists() or descendants().where(ofType(canonical) = '#').exists()).not()).trace('unmatched', id).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-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
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 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. Condition.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. 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 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. Condition.clinicalStatus
Definition

The clinical status of the condition.

Shortactive | recurrence | relapse | inactive | remission | resolved | unknown
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. clinicalStatus is required since it is a modifier element. For conditions that are problems list items, the clinicalStatus should not be unknown. For conditions that are not problem list items, the clinicalStatus may be unknown. For example, conditions derived from a claim are point in time, so those conditions may have a clinicalStatus of unknown

Control1..1
This element is affected by the following invariants: con-3, con-2
BindingThe codes SHALL be taken from ConditionClinicalStatusCodeshttp://hl7.org/fhir/ValueSet/condition-clinical|5.0.0
(required to http://hl7.org/fhir/ValueSet/condition-clinical|5.0.0)

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

The verification status to support the clinical status of the condition. The verification status pertains to the condition, itself, not to any specific condition attribute.

Shortunconfirmed | 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
BindingThe codes SHALL be taken from ConditionVerificationStatushttp://hl7.org/fhir/ValueSet/condition-ver-status|5.0.0
(required to http://hl7.org/fhir/ValueSet/condition-ver-status|5.0.0)

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 Supportfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. 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: con-2
BindingThe codes SHOULD be taken from ConditionCategoryCodeshttp://hl7.org/fhir/ValueSet/condition-category
(preferred to http://hl7.org/fhir/ValueSet/condition-category)

A category assigned to the condition.

TypeCodeableConcept
Is Modifierfalse
Must Supportfalse
Summaryfalse
Pattern Value{
  "coding" : [{
    "code" : "encounter-diagnosis"
  }]
}
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
14. Condition.code
Definition

Identification of the condition, problem or diagnosis.

ShortIdentification of the condition, problem or diagnosis
Control10..1
BindingFor example codes, see ConditionProblemDiagnosisCodeshttp://hl7.org/fhir/ValueSet/condition-code
(example to http://hl7.org/fhir/ValueSet/condition-code)

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()))
16. Condition.code.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.

Control10..*
TypeCoding
Is Modifierfalse
Must Supporttrue
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()))
SlicingThis element introduces a set of slices on Condition.code.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ system
  • 18. Condition.code.coding:icd10code
    Slice Nameicd10code
    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.

    Control10..1*
    BindingThe codes SHALL be taken from For codes, see Kod rozpoznania (PL)
    (required to http://hl7.org.pl/fhir/ig/pl-base/ValueSet/pl-icd10Condition-VS)
    TypeCoding
    Is Modifierfalse
    Must Supporttrue
    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()))
    20. Condition.code.coding:icd10code.system
    Definition

    The identification of the code system that defines the meaning of the symbol in the code.

    ShortIdentity of the terminology system
    Comments

    The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should be an absolute reference to some definition that establishes the system clearly and unambiguously.

    Control10..1
    Typeuri
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summarytrue
    Requirements

    Need to be unambiguous about the source of the definition of the symbol.

    Pattern Valueurn:oid:2.16.840.1.113883.6.3
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    22. Condition.code.coding:icd10code.version
    Definition

    The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

    ShortVersion of the system - if relevant
    Comments

    Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

    NoteThis is a business version Id, 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 Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    24. Condition.code.coding:icd10code.code
    Definition

    A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

    ShortSymbol in syntax defined by the system
    Control10..1
    This element is affected by the following invariants: cod-1
    Typecode
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summarytrue
    Requirements

    Need to refer to a particular code in the system.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    26. Condition.code.coding:icd10code.display
    Definition

    A representation of the meaning of the code in the system, following the rules of the system.

    ShortRepresentation defined by the system
    Control10..1
    This element is affected by the following invariants: cod-1
    Typestring
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summarytrue
    Requirements

    Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    28. Condition.code.coding:icd10code.userSelected
    Definition

    Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

    ShortIf this coding was chosen directly by the user
    Comments

    Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

    Control0..01
    Typeboolean
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Requirements

    This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

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

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

    ShortWho has the condition?
    Control1..1
    TypeReference(Patient, Group)
    Is Modifierfalse
    Must Supportfalse
    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()))

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

    0. Condition
    2. Condition.category
    Pattern Value{
      "coding" : [{
        "code" : "encounter-diagnosis"
      }]
    }
    4. Condition.code
    Control1..?
    Must Supporttrue
    6. Condition.code.coding
    Control1..?
    Must Supporttrue
    SlicingThis element introduces a set of slices on Condition.code.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ system
    • 8. Condition.code.coding:icd10code
      Slice Nameicd10code
      Control1..1
      BindingThe codes SHALL be taken from Kod rozpoznania (PL)
      (required to http://hl7.org.pl/fhir/ig/pl-base/ValueSet/pl-icd10Condition-VS)
      Must Supporttrue
      10. Condition.code.coding:icd10code.system
      Control1..?
      Must Supporttrue
      Pattern Valueurn:oid:2.16.840.1.113883.6.3
      12. Condition.code.coding:icd10code.version
      NoteThis is a business version Id, not a resource version Id (see discussion)
      Must Supporttrue
      14. Condition.code.coding:icd10code.code
      Control1..?
      Must Supporttrue
      16. Condition.code.coding:icd10code.display
      Control1..?
      Must Supporttrue
      18. Condition.code.coding:icd10code.userSelected
      Control0..0

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

      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
      Must Supportfalse
      Summaryfalse
      Invariantscon-2: If category is problems list item, the clinicalStatus should not be unknown (category.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-category' and code='problem-list-item').exists() implies clinicalStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-clinical' and code='unknown').exists().not())
      con-3: If condition is abated, then clinicalStatus must be either inactive, resolved, or remission. (abatement.exists() implies (clinicalStatus.coding.where(system='http://terminology.hl7.org/CodeSystem/condition-clinical' and (code='inactive' or code='resolved' or code='remission')).exists()))
      dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.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().ofType(canonical) | %resource.descendants().ofType(uri) | %resource.descendants().ofType(url))) or descendants().where(reference = '#').exists() or descendants().where(ofType(canonical) = '#').exists() or descendants().where(ofType(canonical) = '#').exists()).not()).trace('unmatched', id).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-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
      dom-6: A resource should have narrative for robust management (text.`div`.exists())
      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

      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. 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
      TypeMeta
      Is Modifierfalse
      Must Supportfalse
      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 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. 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
      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. 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 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. Condition.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. 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 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. 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 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. 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..*
      TypeIdentifier
      Is Modifierfalse
      Must Supportfalse
      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()))
      20. Condition.clinicalStatus
      Definition

      The clinical status of the condition.

      Shortactive | recurrence | relapse | inactive | remission | resolved | unknown
      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. clinicalStatus is required since it is a modifier element. For conditions that are problems list items, the clinicalStatus should not be unknown. For conditions that are not problem list items, the clinicalStatus may be unknown. For example, conditions derived from a claim are point in time, so those conditions may have a clinicalStatus of unknown

      Control1..1
      This element is affected by the following invariants: con-3, con-2
      BindingThe codes SHALL be taken from ConditionClinicalStatusCodes
      (required to http://hl7.org/fhir/ValueSet/condition-clinical|5.0.0)

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

      The verification status to support the clinical status of the condition. The verification status pertains to the condition, itself, not to any specific condition attribute.

      Shortunconfirmed | 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
      BindingThe codes SHALL be taken from ConditionVerificationStatus
      (required to http://hl7.org/fhir/ValueSet/condition-ver-status|5.0.0)

      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 Supportfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      24. 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: con-2
      BindingThe codes SHOULD be taken from ConditionCategoryCodes
      (preferred to http://hl7.org/fhir/ValueSet/condition-category)

      A category assigned to the condition.

      TypeCodeableConcept
      Is Modifierfalse
      Must Supportfalse
      Summaryfalse
      Pattern Value{
        "coding" : [{
          "code" : "encounter-diagnosis"
        }]
      }
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      26. Condition.severity
      Definition

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

      ShortSubjective severity of condition
      Comments

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

      Control0..1
      BindingThe codes SHOULD be taken from ConditionDiagnosisSeverity
      (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 Supportfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      28. Condition.code
      Definition

      Identification of the condition, problem or diagnosis.

      ShortIdentification of the condition, problem or diagnosis
      Control1..1
      BindingFor example codes, see ConditionProblemDiagnosisCodes
      (example to http://hl7.org/fhir/ValueSet/condition-code)

      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()))
      30. Condition.code.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
      32. Condition.code.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())
      SlicingThis element introduces a set of slices on Condition.code.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 34. Condition.code.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.

        Control1..*
        TypeCoding
        Is Modifierfalse
        Must Supporttrue
        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()))
        SlicingThis element introduces a set of slices on Condition.code.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ system
        • 36. Condition.code.coding:icd10code
          Slice Nameicd10code
          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.

          Control1..1
          BindingThe codes SHALL be taken from Kod rozpoznania (PL)
          (required to http://hl7.org.pl/fhir/ig/pl-base/ValueSet/pl-icd10Condition-VS)
          TypeCoding
          Is Modifierfalse
          Must Supporttrue
          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()))
          38. Condition.code.coding:icd10code.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
          40. Condition.code.coding:icd10code.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())
          SlicingThis element introduces a set of slices on Condition.code.coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 42. Condition.code.coding:icd10code.system
            Definition

            The identification of the code system that defines the meaning of the symbol in the code.

            ShortIdentity of the terminology system
            Comments

            The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should be an absolute reference to some definition that establishes the system clearly and unambiguously.

            Control1..1
            Typeuri
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Requirements

            Need to be unambiguous about the source of the definition of the symbol.

            Pattern Valueurn:oid:2.16.840.1.113883.6.3
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            44. Condition.code.coding:icd10code.version
            Definition

            The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

            ShortVersion of the system - if relevant
            Comments

            Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

            NoteThis is a business version Id, 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 Supporttrue
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            46. Condition.code.coding:icd10code.code
            Definition

            A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

            ShortSymbol in syntax defined by the system
            Control1..1
            This element is affected by the following invariants: cod-1
            Typecode
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Requirements

            Need to refer to a particular code in the system.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            48. Condition.code.coding:icd10code.display
            Definition

            A representation of the meaning of the code in the system, following the rules of the system.

            ShortRepresentation defined by the system
            Control1..1
            This element is affected by the following invariants: cod-1
            Typestring
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Requirements

            Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            50. Condition.code.coding:icd10code.userSelected
            Definition

            Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

            ShortIf this coding was chosen directly by the user
            Comments

            Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

            Control0..0
            Typeboolean
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Requirements

            This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            52. Condition.code.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()))
            54. 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 BodyStructure resource (e.g. to identify and track separately) then use the standard extension http://hl7.org/fhir/StructureDefinition/bodySite. May be a summary code, or a reference to a very precise definition of the location, or both.

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

            SNOMED CT Body site concepts

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

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

            ShortWho has the condition?
            Control1..1
            TypeReference(Patient, Group)
            Is Modifierfalse
            Must Supportfalse
            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()))
            58. Condition.encounter
            Definition

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

            ShortThe Encounter during which this Condition was created
            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
            TypeReference(Encounter)
            Is Modifierfalse
            Must Supportfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            60. 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. Period is generally used to convey an imprecise onset that occurred within the time period. For example, Period is not intended to convey the transition period before the chronic bronchitis or COPD condition was diagnosed, but Period can be used to convey an imprecise diagnosis date. Range is generally used to convey an imprecise age range (e.g. 4 to 6 years old). Because a Condition.code can represent multiple levels of granularity and can be modified over time, the onset and abatement dates can have ambiguity whether those dates apply to the current Condition.code or an earlier representation of that Condition.code. For example, if the Condition.code was initially documented as severe asthma, then it is ambiguous whether the onset and abatement dates apply to asthma (overall in that subject's lifetime) or when asthma transitioned to become severe.

            Control0..1
            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
            Must Supportfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            62. 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" - Some conditions, such as chronic 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. Because a Condition.code can represent multiple levels of granularity and can be modified over time, the onset and abatement dates can have ambiguity whether those dates apply to the current Condition.code or an earlier representation of that Condition.code. For example, if the Condition.code was initially documented as severe asthma, then it is ambiguous whether the onset and abatement dates apply to asthma (overall in that subject's lifetime) or when asthma transitioned to become severe.

            Control0..1
            This element is affected by the following invariants: con-3
            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
            Must Supportfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            64. Condition.recordedDate
            Definition

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

            ShortDate condition was first recorded
            Comments

            When onset date is unknown, recordedDate can be used to establish if the condition was present on or before a given date. If the recordedDate is known and provided by a sending system, it is preferred that the receiving system preserve that recordedDate value. If the recordedDate is not provided by the sending system, the receipt timestamp is sometimes used as the recordedDate.

            Control0..1
            TypedateTime
            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()))
            66. Condition.participant
            Definition

            Indicates who or what participated in the activities related to the condition and how they were involved.

            ShortWho or what participated in the activities related to the condition and how they were involved
            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supportfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            68. Condition.participant.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
            70. Condition.participant.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())
            72. Condition.participant.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())
            74. Condition.participant.function
            Definition

            Distinguishes the type of involvement of the actor in the activities related to the condition.

            ShortType of involvement
            Control0..1
            BindingUnless not suitable, these codes SHALL be taken from ParticipationRoleType
            (extensible to http://hl7.org/fhir/ValueSet/participation-role-type)
            TypeCodeableConcept
            Is Modifierfalse
            Must Supportfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            76. Condition.participant.actor
            Definition

            Indicates who or what participated in the activities related to the condition.

            ShortWho or what participated in the activities related to the condition
            Control1..1
            TypeReference(Practitioner, PractitionerRole, Patient, RelatedPerson, Device, Organization, CareTeam)
            Is Modifierfalse
            Must Supportfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            78. Condition.stage
            Definition

            A simple summary of the stage such as "Stage 3" or "Early Onset". The determination of the stage is disease-specific, such as cancer, retinopathy of prematurity, kidney diseases, Alzheimer's, or Parkinson disease.

            ShortStage/grade, usually assessed formally
            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supportfalse
            Summaryfalse
            Invariantscon-1: Stage SHALL have summary or assessment (summary.exists() or assessment.exists())
            ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            80. 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
            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
            82. 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 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())
            84. 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 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())
            86. Condition.stage.summary
            Definition

            A simple summary of the stage such as "Stage 3" or "Early Onset". The determination of the stage is disease-specific, such as cancer, retinopathy of prematurity, kidney diseases, Alzheimer's, or Parkinson disease.

            ShortSimple summary (disease specific)
            Control0..1
            This element is affected by the following invariants: 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
            Is Modifierfalse
            Must Supportfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            88. Condition.stage.assessment
            Definition

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

            ShortFormal record of assessment
            Control0..*
            This element is affected by the following invariants: con-1
            TypeReference(ClinicalImpression, DiagnosticReport, Observation)
            Is Modifierfalse
            Must Supportfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            90. Condition.stage.type
            Definition

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

            ShortKind of staging
            Control0..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
            Is Modifierfalse
            Must Supportfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            92. 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 for the verification status
            Comments

            If the condition was confirmed, but subsequently refuted, then the evidence can be cumulative including all evidence over time. The evidence may be a simple list of coded symptoms/manifestations, or references to observations or formal assessments, or both. For example, if the Condition.code is pneumonia, then there could be an evidence list where Condition.evidence.concept = fever (CodeableConcept), Condition.evidence.concept = cough (CodeableConcept), and Condition.evidence.reference = bronchitis (reference to Condition).

            Control0..*
            BindingFor example codes, see SNOMEDCTClinicalFindings
            (example to http://hl7.org/fhir/ValueSet/clinical-findings)
            TypeCodeableReference(Resource)
            Is Modifierfalse
            Must Supportfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            94. 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
            Control0..*
            TypeAnnotation
            Is Modifierfalse
            Must Supportfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))