> For the complete documentation index, see [llms.txt](https://docs.b2ihealthcare.com/snow-owl-authoring-platform/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.b2ihealthcare.com/snow-owl-authoring-platform/7.19.0/editing-and-authoring/snomed-ct-concept-editor/memberships-page.md).

# Memberships Page

The Memberships Page shows if the concept is a member of an intentional (Query Specification type) or extensional (Simple type) SNOMED CT Reference Set. 

The Memberships Page displays the following information:

| Column                   | Description                                                                                                                                                           |
| ------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Reference Set type**   | Name of the Reference Set that the selected concept is a member of                                                                                                    |
| **Referenced component** | Name of the concept                                                                                                                                                   |
| **Query**                | <p>The Query specification type SNOMED CT Reference Sets have an associated ECL query that appears here<br>(Applies to Query type Reference Set memberships only)</p> |
| **Status**               | Active or inactive                                                                                                                                                    |
| **Effective time**       | Publication date of the Reference Set or Value Domain member                                                                                                          |
| **Module ID**            | The module of the Reference Set                                                                                                                                       |
| **Member ID**            | The identifier that uniquely identifies this Reference Set membership                                                                                                 |

![Memberships Page](https://904483993-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcgelYf9y6IT26ZqjUpeU%2Fuploads%2FnziQXesPOxxYpyt024Fv%2Fsct_editor_memberships_page.png?alt=media\&token=6962d51a-b0a1-4dac-a19f-b218aad9e631)

By right-clicking on a membership you are able to delete or retire a component.

![Delete/Retire Context Menu Option](https://904483993-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcgelYf9y6IT26ZqjUpeU%2Fuploads%2FN6C3xsT5VWRhbesFIrpY%2Fsct_editor_retire_context_menu.png?alt=media\&token=18631fdf-af8b-4772-9d0e-a17f3fd57c7a)

{% hint style="info" %}
The Membership Page is read-only and displays information related to the Reference Set membership of the given concept. Inactive relationships can be hidden or revealed with the toggle ![](https://snowowl.atlassian.net/wiki/download/thumbnails/611026132/worddav3746636b40e2feda67ddef27097a009e.png?version=1\&modificationDate=1578324723494\&cacheVersion=1\&api=v2\&width=16\&height=16) button.
{% endhint %}