---
type: "resource-definitions"
title: "ConditionDefinition Definitions"
resource: "ConditionDefinition"
---

# ConditionDefinition Definitions

<a id="ConditionDefinition"></a>

## ConditionDefinition
A definition of a condition

**Definition:** A definition of a condition and information relevant to managing it.

**Cardinality:** 0..*

**Constraints:** cnl-0 | warning | Name should be usable as an identifier for the module by machine processing applications such as code generation | name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')

**Mappings:** w5=clinical.general


<a id="ConditionDefinition.url"></a>

## ConditionDefinition.url
Canonical identifier for this condition definition, represented as a URI (globally unique)

**Definition:** An absolute URI that is used to identify this condition definition when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which an authoritative instance of this condition definition is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the condition definition is stored on different servers.

**Comments:** Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred.  Multiple instances may share the same URL if they have a distinct version.

The determination of when to create a new version of a resource (same url, new version) vs. defining a new artifact is up to the author.  Considerations for making this decision are found in [Technical and Business Versions](resource.html#versions). 

In some cases, the resource can no longer be found at the stated url, but the url itself cannot change. Implementations can use the [meta.source](resource.html#meta) element to indicate where the current master source of the resource can be found.

**Requirements:** Allows the condition definition to be referenced by a single globally unique identifier.

**Cardinality:** 0..1

**Type:** [uri](/uri)

**Summary:** true

**Constraints:** cnl-1 | warning | URL should not contain | or # - these characters make processing canonical references problematic | exists() implies matches('^[^|# ]+$')

**Mappings:** w5=FiveWs.identifier


<a id="ConditionDefinition.identifier"></a>

## ConditionDefinition.identifier
Additional identifier for the condition definition

**Definition:** A formal identifier that is used to identify this condition definition when it is represented in other formats, or referenced in a specification, model, design or an instance.

**Requirements:** Allows externally provided and/or usable business identifiers to be easily associated with the module.

**Cardinality:** 0..*

**Type:** [Identifier](/Identifier)

**Summary:** true

**Mappings:** w5=FiveWs.identifier; objimpl=no-gen-base


<a id="ConditionDefinition.version"></a>

## ConditionDefinition.version
Business version of the condition definition

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

**Comments:** There may be different condition definition instances that have the same identifier but different versions.  The version can be appended to the url in a reference to allow a reference to a particular business version of the condition definition with the format [url]|[version]. The version SHOULD NOT contain a '#' - see [Business Version](resource.html#bv-format).

**Cardinality:** 0..1

**Type:** [string](/string)

**Summary:** true

**Mappings:** w5=FiveWs.version


<a id="ConditionDefinition.versionAlgorithm[x]"></a>

## ConditionDefinition.versionAlgorithm[x]
How to compare versions

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

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

**Cardinality:** 0..1

**Type:** [string](/string), [Coding](/Coding)

**Binding:** extensible:[version-algorithm](/valueset-version-algorithm)

**Summary:** true


<a id="ConditionDefinition.name"></a>

## ConditionDefinition.name
Name for this condition definition (computer friendly)

**Definition:** A natural language name identifying the condition definition. This name should be usable as an identifier for the module by machine processing applications such as code generation.

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

**Requirements:** Support human navigation and code generation.

**Conditions:** cnl-0

**Cardinality:** 0..1

**Type:** [string](/string)

**Summary:** true


<a id="ConditionDefinition.title"></a>

## ConditionDefinition.title
Name for this condition definition (human friendly)

**Definition:** A short, descriptive, user-friendly title for the condition definition.

**Comments:** This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.

**Cardinality:** 0..1

**Type:** [string](/string)

**Summary:** true


<a id="ConditionDefinition.subtitle"></a>

## ConditionDefinition.subtitle
Subordinate title of the event definition

**Definition:** An explanatory or alternate title for the event definition giving additional information about its content.

**Cardinality:** 0..1

**Type:** [string](/string)


<a id="ConditionDefinition.status"></a>

## ConditionDefinition.status
draft | active | retired | unknown

**Definition:** The status of this condition definition. Enables tracking the life-cycle of the content.

**Comments:** Allows filtering of condition definitions that are appropriate for use versus not.

See guidance around (not) making local changes to elements [here](canonicalresource.html#localization).

**Cardinality:** 1..1

**Type:** [code](/code)

**Binding:** required:[publication-status](/valueset-publication-status)

**Summary:** true

**Is Modifier:** true (Reason: This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration)

**Mappings:** w5=FiveWs.status


<a id="ConditionDefinition.experimental"></a>

## ConditionDefinition.experimental
For testing only - never for real usage

**Definition:** A Boolean value to indicate that this condition definition is authored for testing purposes (or education/evaluation/marketing) and no version of this resource will ever be intended for genuine usage.

**Comments:** Allows filtering of condition definitions that are appropriate for use versus not. Experimental resources might include example instances in implementation guides, instances created solely for testing purposes, etc. If experimental is 'true' for any version of a resource, it should be true for all versions of the resource.  (If experimental changes, then it is being misused or a resource that was never intended for real-world use has unexpectedly changed its purpose.).

Experimental resources are not expected to be stable and may well have breaking changes without a corresponding change to the 'version' element.

**Requirements:** Enables experimental content to be developed following the same lifecycle that would be used for a production-level condition definition.

**Meaning if Missing:** If absent, this resource is treated as though it is not experimental.

**Cardinality:** 0..1

**Type:** [boolean](/boolean)

**Summary:** true

**Mappings:** w5=FiveWs.class


<a id="ConditionDefinition.date"></a>

## ConditionDefinition.date
Date last changed

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

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

See guidance around (not) making local changes to elements [here](canonicalresource.html#localization).

**Aliases:** Revision Date

**Cardinality:** 0..1

**Type:** [dateTime](/dateTime)

**Summary:** true

**Mappings:** w5=FiveWs.recorded


<a id="ConditionDefinition.publisher"></a>

## ConditionDefinition.publisher
Name of the publisher/steward (organization or individual)

**Definition:** The name of the organization or individual responsible for the release and ongoing maintenance of the condition definition.

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

**Requirements:** Helps establish the "authority/credibility" of the condition definition.  May also allow for contact.

**Cardinality:** 0..1

**Type:** [string](/string)

**Summary:** true

**Mappings:** w5=FiveWs.witness


<a id="ConditionDefinition.contact"></a>

## ConditionDefinition.contact
Contact details for the publisher

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

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

See guidance around (not) making local changes to elements [here](canonicalresource.html#localization).

**Cardinality:** 0..*

**Type:** [ContactDetail](/ContactDetail)

**Summary:** true


<a id="ConditionDefinition.description"></a>

## ConditionDefinition.description
Natural language description of the condition definition

**Definition:** A free text natural language description of the condition definition from a consumer's perspective.

**Comments:** This description can be used to capture details such as comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the condition definition as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the condition definition is presumed to be the predominant language in the place the condition definition was created).

**Cardinality:** 0..1

**Type:** [markdown](/markdown)


<a id="ConditionDefinition.useContext"></a>

## ConditionDefinition.useContext
The context that the content is intended to support

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

**Comments:** When multiple useContexts are specified, there is no expectation that all or any of the contexts apply.

**Requirements:** Assist in searching for appropriate content.

**Cardinality:** 0..*

**Type:** [UsageContext](/UsageContext)

**Summary:** true


<a id="ConditionDefinition.jurisdiction"></a>

## ConditionDefinition.jurisdiction
Jurisdiction of the authority that maintains the condition definition (if applicable)

**Definition:** A legal or geographic region in which the authority that maintains the resource is operating.  In general, the jurisdiction is also found in the useContext.  The useContext may reference additional jurisdictions because the defining jurisdiction does not necessarily limit the jurisdictions of use.

**Comments:** It may be possible for the condition definition to be used in jurisdictions other than those for which it was originally designed or intended.

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

**Cardinality:** 0..*

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** extensible:[jurisdiction](/valueset-jurisdiction)

**Summary:** true


<a id="ConditionDefinition.code"></a>

## ConditionDefinition.code
Identification of the condition, problem or diagnosis

**Definition:** Identification of the condition, problem or diagnosis.

**Requirements:** 0..1 to account for primarily narrative only resources.

**Cardinality:** 1..1

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** example:[condition-code](/valueset-condition-code)

**Summary:** true


<a id="ConditionDefinition.severity"></a>

## ConditionDefinition.severity
Subjective severity of condition

**Definition:** A 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.

**Cardinality:** 0..1

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** preferred:[condition-severity](/valueset-condition-severity)

**Summary:** true


<a id="ConditionDefinition.bodySite"></a>

## ConditionDefinition.bodySite
Anatomical location, if relevant

**Definition:** The anatomical location where this condition manifests itself.

**Comments:** Only used if not implicit in code found in ConditionDefinition.code. If the use case requires attributes from the BodySite 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.

**Cardinality:** 0..1

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** example:[body-site](/valueset-body-site)

**Summary:** true


<a id="ConditionDefinition.stage"></a>

## ConditionDefinition.stage
Stage/grade, usually assessed formally

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

**Cardinality:** 0..1

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** example:[condition-stage](/valueset-condition-stage)

**Summary:** true


<a id="ConditionDefinition.hasSeverity"></a>

## ConditionDefinition.hasSeverity
Whether Severity is appropriate

**Definition:** Whether Severity is appropriate to collect for this condition.

**Cardinality:** 0..1

**Type:** [boolean](/boolean)


<a id="ConditionDefinition.hasBodySite"></a>

## ConditionDefinition.hasBodySite
Whether bodySite is appropriate

**Definition:** Whether bodySite is appropriate to collect for this condition.

**Cardinality:** 0..1

**Type:** [boolean](/boolean)


<a id="ConditionDefinition.hasStage"></a>

## ConditionDefinition.hasStage
Whether stage is appropriate

**Definition:** Whether stage is appropriate to collect for this condition.

**Cardinality:** 0..1

**Type:** [boolean](/boolean)


<a id="ConditionDefinition.definition"></a>

## ConditionDefinition.definition
Formal Definition for the condition

**Definition:** Formal definitions of the condition. These may be references to ontologies, published clinical protocols or research papers.

**Cardinality:** 0..*

**Type:** [uri](/uri)


<a id="ConditionDefinition.observation"></a>

## ConditionDefinition.observation
Observations particularly relevant to this condition

**Definition:** Observations particularly relevant to this condition.

**Cardinality:** 0..*

**Type:** [canonical](/canonical)


<a id="ConditionDefinition.medication"></a>

## ConditionDefinition.medication
Medications particularly relevant for this condition

**Definition:** Medications particularly relevant for this condition.

**Cardinality:** 0..*

**Type:** [BackboneElement](/BackboneElement)


<a id="ConditionDefinition.medication.category"></a>

## ConditionDefinition.medication.category
Category that is relevant

**Definition:** Category that is relevant.

**Cardinality:** 0..1

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** example:[medicationrequest-category](/valueset-medicationrequest-category)


<a id="ConditionDefinition.medication.code"></a>

## ConditionDefinition.medication.code
Code for relevant Medication

**Definition:** Code for relevant Medication.

**Cardinality:** 0..1

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** example:[medication-codes](/valueset-medication-codes)


<a id="ConditionDefinition.precondition"></a>

## ConditionDefinition.precondition
Observation that suggets this condition

**Definition:** An observation that suggests that this condition applies.

**Cardinality:** 0..*

**Type:** [BackboneElement](/BackboneElement)


<a id="ConditionDefinition.precondition.type"></a>

## ConditionDefinition.precondition.type
sensitive | specific

**Definition:** Kind of pre-condition.

**Cardinality:** 1..1

**Type:** [code](/code)

**Binding:** required:[condition-precondition-type](/valueset-condition-precondition-type)


<a id="ConditionDefinition.precondition.code"></a>

## ConditionDefinition.precondition.code
Code for relevant Observation

**Definition:** Code for relevant Observation.

**Cardinality:** 1..1

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** example:[observation-codes](/valueset-observation-codes)


<a id="ConditionDefinition.precondition.value[x]"></a>

## ConditionDefinition.precondition.value[x]
Value of Observation

**Definition:** Value of Observation.

**Cardinality:** 0..1

**Type:** [CodeableConcept](/CodeableConcept), [Quantity](/Quantity)


<a id="ConditionDefinition.team"></a>

## ConditionDefinition.team
Appropriate team for this condition

**Definition:** Appropriate team for this condition.

**Cardinality:** 0..*

**Type:** Reference([CareTeam](/CareTeam))


<a id="ConditionDefinition.questionnaire"></a>

## ConditionDefinition.questionnaire
Questionnaire for this condition

**Definition:** Questionnaire for this condition.

**Cardinality:** 0..*

**Type:** [BackboneElement](/BackboneElement)


<a id="ConditionDefinition.questionnaire.purpose"></a>

## ConditionDefinition.questionnaire.purpose
preadmit | diff-diagnosis | outcome

**Definition:** Use of the questionnaire.

**Cardinality:** 1..1

**Type:** [code](/code)

**Binding:** required:[condition-questionnaire-purpose](/valueset-condition-questionnaire-purpose)


<a id="ConditionDefinition.questionnaire.reference"></a>

## ConditionDefinition.questionnaire.reference
Specific Questionnaire

**Definition:** Specific Questionnaire.

**Cardinality:** 1..1

**Type:** Reference([Questionnaire](/Questionnaire))


<a id="ConditionDefinition.plan"></a>

## ConditionDefinition.plan
Plan that is appropriate

**Definition:** Plan that is appropriate.

**Cardinality:** 0..*

**Type:** [BackboneElement](/BackboneElement)


<a id="ConditionDefinition.plan.role"></a>

## ConditionDefinition.plan.role
Use for the plan

**Definition:** Use for the plan.

**Cardinality:** 0..1

**Type:** [CodeableConcept](/CodeableConcept)


<a id="ConditionDefinition.plan.reference"></a>

## ConditionDefinition.plan.reference
The actual plan

**Definition:** The actual plan.

**Cardinality:** 1..1

**Type:** Reference([PlanDefinition](/PlanDefinition))