diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-block-pattern-categories-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-block-pattern-categories-controller.php
index 761c0d6777..bd6b76ac2c 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-block-pattern-categories-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-block-pattern-categories-controller.php
@@ -102,10 +102,10 @@ class WP_REST_Block_Pattern_Categories_Controller extends WP_REST_Controller {
 	 */
 	public function prepare_item_for_response( $item, $request ) {
 		$fields = $this->get_fields_for_response( $request );
-		$keys   = array( 'name', 'label' );
+		$keys   = array( 'name', 'label', 'description' );
 		$data   = array();
 		foreach ( $keys as $key ) {
-			if ( rest_is_field_included( $key, $fields ) ) {
+			if ( isset( $item[ $key ] ) && rest_is_field_included( $key, $fields ) ) {
 				$data[ $key ] = $item[ $key ];
 			}
 		}
@@ -130,18 +130,24 @@ class WP_REST_Block_Pattern_Categories_Controller extends WP_REST_Controller {
 			'title'      => 'block-pattern-category',
 			'type'       => 'object',
 			'properties' => array(
-				'name'  => array(
+				'name'        => array(
 					'description' => __( 'The category name.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 					'context'     => array( 'view', 'edit', 'embed' ),
 				),
-				'label' => array(
+				'label'       => array(
 					'description' => __( 'The category label, in human readable format.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 					'context'     => array( 'view', 'edit', 'embed' ),
 				),
+				'description' => array(
+					'description' => __( 'The category description, in human readable format.' ),
+					'type'        => 'string',
+					'readonly'    => true,
+					'context'     => array( 'view', 'edit', 'embed' ),
+				),
 			),
 		);
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index ab30af22b4..e3ef98db48 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-alpha-55096';
+$wp_version = '6.2-alpha-55097';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.