Slot: isReferenceData
Set to Yes if this is a reference item group.
URI: [odm:slot/isReferenceData](https://cdisc.org/odm2/slot/isReferenceData)
## Applicable Classes
| Name | Description | Modifies Slot |
| --- | --- | --- |
| [ItemGroup](../classes/ItemGroup.md) | A collection element that groups related items or subgroups within a specific context, used for tables, FHIR resource profiles, biomedical concept specializations, or form sections | no |
| [DataStructureDefinition](../classes/DataStructureDefinition.md) | A structural element that defines the organization of a data cube for analysis, including dimensions, attributes, and measures | no |
## Properties
### Type and Range
| Property | Value |
| --- | --- |
| Range | [Boolean](../types/Boolean.md) |
| Domain Of | [ItemGroup](../classes/ItemGroup.md) |
### Cardinality and Requirements
| Property | Value |
| --- | --- |
### Slot Characteristics
| Property | Value |
| --- | --- |
| Owner | [ItemGroup](../classes/ItemGroup.md) |
## Identifier and Mapping Information
### Schema Source
* from schema: https://cdisc.org/dds
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | odm:isReferenceData |
| native | odm:isReferenceData |
## LinkML Source
name: isReferenceData
description: Set to Yes if this is a reference item group.
from_schema: https://cdisc.org/dds
rank: 1000
owner: ItemGroup
domain_of:
- ItemGroup
range: boolean