> 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/editing-and-authoring/snomed-ct-concept-editor/relationship-pages/source-relationships-page.md).

# Source relationships Page

Source relationships originate from the selected concept and point to a different concept. 

{% hint style="info" %}
The selected concept is the source. 
{% endhint %}

Source relationships are also displayed in the properties section of the Overview Page. They can be viewed and edited on this page. The Source Relationships Page displays the following information:

| Column                  | Description                                              |
| ----------------------- | -------------------------------------------------------- |
| **Characteristic type** | Stated relationship, inferred or additional relationship |
| **Status**              | Active or inactive                                       |
| **Attributes**          | Relationship type (e.g. *Is a*, *Dose form*)             |
| **Destination**         | Concept that the relationship is pointing to             |
| **Destination negated** | Description logic negation                               |
| **Effective time**      | Publication date of the relationship or unpublished      |
| **Group**               | The group associated with the relationship               |
| **Union group**         | A group used only in description logic disjunctions      |
| **Modifier**            | Existential or universal restriction                     |
| **Module ID**           | The module that this relationship is in                  |
| **Relationship ID**     | Unique relationship identifier                           |

![Source Relationship Page](/files/b8CoMAhYKFJ82RcKd8fx)

#### Editing

Following SNOMED International rules, you are only allowed to change the status of the relationship. You can do this by selecting a relationship in the table and clicking on the cell you would like to change. Doing so reveals a drop-down where you can set the status to `active` or `inactive`.

To delete a relationship, click on the ![](https://snowowl.atlassian.net/wiki/download/thumbnails/611026132/worddavdfedf4bac4935a24450ff2edc0eb5683.png?version=1\&modificationDate=1578324730197\&cacheVersion=1\&api=v2\&width=16\&height=16) *Retire relationship* button in the top right corner of the page. Deletion is only applicable to relationships that haven't been released yet. You can inactivate a released relationship using the same ![](https://snowowl.atlassian.net/wiki/download/thumbnails/611026132/worddavdfedf4bac4935a24450ff2edc0eb5683.png?version=1\&modificationDate=1578324730197\&cacheVersion=1\&api=v2\&width=16\&height=16) *Retire relationship* button. Alternatively, you can inactivate a relationship by changing its status in the table to inactive This operation is permitted for both released and unreleased relationships.

To add a relationship, use the ![](https://snowowl.atlassian.net/wiki/download/attachments/611026132/add-rela-icon-01.png?version=1\&modificationDate=1578402541177\&cacheVersion=1\&api=v2) *Add relationship* button in the top right corner of the page. 

{% hint style="info" %}
Editing of source relationships is also possible on the Overview Page.
{% endhint %}


---

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