# Enable Hierarchical MedDRA Terms for Datasheets and Watchlists

Learn about optional configuration for organizations that do not use Vault Safety's aggregate reporting features. 

# About the Feature 

With 23R3, Vault Safety supports configuring Adverse Event terms on Datasheets and Watchlists at any level of the MedDRA hierarchy. Previously, terms could be coded at the Preferred Term (PT) and Lower Level Term (LLT) levels only. When coding Adverse Events on Cases, any MedDRA LLT is considered a match if it is listed on or falls under the hierarchy of the term on the Datasheet or Watchlist. 

This feature is Auto-on, however, Admins may apply optional additional configuration to their Vault.

For organizations that do not use Vault Safety's aggregate reporting features, you may choose to update the **MedDRA Criteria** layout to exclude the **Include Lower Levels** field. This field is now used to determine whether lower-level MedDRA terms are included only when evaluating expectedness during aggregate reporting (DSUR, PBRER, and PSUR).

For more information about this feature, see <a href="/en/gr/01198/#manage-expected-adverse-events-on-a-datasheet">Manage Datasheets and Auto-Expectedness: Manage Expected Adverse Events on a Datasheet</a> and <a href="/en/gr/01192/#add-meddra-terms">Configure Adverse Event Watchlists: Add MedDRA Terms</a>.

## (Optional) Update the MedDRA Criteria Layout

To remove the **Include Lower Levels** field, update the following layouts:

* **MedDRA Criteria Detail Page Layout**
* **MedDRA Query Criteria Detail Page Layout**

Complete the following steps to update each layout:

1. Go to **Admin > Configuration > Objects > MedDRA Criteria > Layouts**.
2. Select a layout.
3. In the **Details** section, remove the **Include Lower Levels** field.
4. Select **Save**.