---
type: "search-params"
title: "EventDefinition Search Parameters"
resource: "EventDefinition"
---
# EventDefinition Search Parameters

<a id="composed-of"></a>

## composed-of
**Description:** What resource is being referenced

**Type:** reference

**Expression:** EventDefinition.relatedArtifact.where(type='composed-of').resource

**Path:** EventDefinition.relatedArtifact.resource

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-composed-of


<a id="context"></a>

## context
**Description:** A use context assigned to the event definition

**Type:** token

**Expression:** (EventDefinition.useContext.value.ofType(CodeableConcept))

**Path:** {{name}}.useContext.valueCodeableConcept

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-context


<a id="context-quantity"></a>

## context-quantity
**Description:** A quantity- or range-valued use context assigned to the event definition

**Type:** quantity

**Expression:** (EventDefinition.useContext.value.ofType(Quantity)) | (EventDefinition.useContext.value.ofType(Range))

**Path:** {{name}}.useContext.valueQuantity,{{name}}.useContext.valueRange

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-context-quantity


<a id="context-type"></a>

## context-type
**Description:** A type of use context assigned to the event definition

**Type:** token

**Expression:** EventDefinition.useContext.code

**Path:** {{name}}.useContext.code

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-context-type


<a id="context-type-quantity"></a>

## context-type-quantity
**Description:** A use context type and quantity- or range-based value assigned to the event definition

**Type:** composite

**Expression:** EventDefinition.useContext

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-context-type-quantity


<a id="context-type-value"></a>

## context-type-value
**Description:** A use context type and value assigned to the event definition

**Type:** composite

**Expression:** EventDefinition.useContext

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-context-type-value


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

## date
**Description:** The event definition publication date

**Type:** date

**Expression:** EventDefinition.date

**Path:** {{name}}.date

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-date


<a id="depends-on"></a>

## depends-on
**Description:** What resource is being referenced

**Type:** reference

**Expression:** EventDefinition.relatedArtifact.where(type='depends-on').resource

**Path:** EventDefinition.relatedArtifact.resource

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-depends-on


<a id="derived-from"></a>

## derived-from
**Description:** What resource is being referenced

**Type:** reference

**Expression:** EventDefinition.relatedArtifact.where(type='derived-from').resource

**Path:** EventDefinition.relatedArtifact.resource

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-derived-from


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

## description
**Description:** The description of the event definition

**Type:** string

**Expression:** EventDefinition.description

**Path:** {{name}}.description

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-description


<a id="effective"></a>

## effective
**Description:** The time during which the event definition is intended to be in use

**Type:** date

**Expression:** EventDefinition.effectivePeriod

**Path:** {{name}}.effectivePeriod

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-effective


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

## identifier
**Description:** External identifier for the event definition

**Type:** token

**Expression:** EventDefinition.identifier

**Path:** {{name}}.identifier

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-identifier


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

## jurisdiction
**Description:** Jurisdiction of the authority that maintains the the event definition

**Type:** token

**Expression:** EventDefinition.jurisdiction

**Path:** {{name}}.jurisdiction

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-jurisdiction


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

## name
**Description:** Computationally friendly name of the event definition

**Type:** string

**Expression:** EventDefinition.name

**Path:** {{name}}.name

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-name


<a id="predecessor"></a>

## predecessor
**Description:** What resource is being referenced

**Type:** reference

**Expression:** EventDefinition.relatedArtifact.where(type='predecessor').resource

**Path:** EventDefinition.relatedArtifact.resource

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-predecessor


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

## publisher
**Description:** Name of the publisher of the event definition

**Type:** string

**Expression:** EventDefinition.publisher

**Path:** {{name}}.publisher

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-publisher


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

## status
**Description:** The current status of the event definition

**Type:** token

**Expression:** EventDefinition.status

**Path:** {{name}}.status

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-status


<a id="successor"></a>

## successor
**Description:** What resource is being referenced

**Type:** reference

**Expression:** EventDefinition.relatedArtifact.where(type='successor').resource

**Path:** EventDefinition.relatedArtifact.resource

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-successor


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

## title
**Description:** The human-friendly name of the event definition

**Type:** string

**Expression:** EventDefinition.title

**Path:** {{name}}.title

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-title


<a id="topic"></a>

## topic
**Description:** Topics associated with the module

**Type:** token

**Expression:** EventDefinition.topic

**Path:** EventDefinition.topic

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-topic


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

## url
**Description:** The uri that identifies the event definition

**Type:** uri

**Expression:** EventDefinition.url

**Path:** {{name}}.url

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-url


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

## version
**Description:** The business version of the event definition

**Type:** token

**Expression:** EventDefinition.version

**Path:** {{name}}.version

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/EventDefinition-version


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

## experimental
**Description:** Whether the EventDefinition is experimental

**Type:** token

**Expression:** EventDefinition.experimental

**Path:** EventDefinition.experimental

**Standards Status:** normative