diff --git a/app/module/ppid_data_categories/service/ppid_data_categories.service.go b/app/module/ppid_data_categories/service/ppid_data_categories.service.go
index 188b22c..d8789ec 100644
--- a/app/module/ppid_data_categories/service/ppid_data_categories.service.go
+++ b/app/module/ppid_data_categories/service/ppid_data_categories.service.go
@@ -75,7 +75,11 @@ func (_i *ppidDataCategoriesService) All(req request.PpidDataCategoriesQueryRequ
 	}
 
 	for _, result := range results {
-		ppidDataCategories = append(ppidDataCategories, mapper.PpidDataCategoriesResponseMapper(result, nil))
+		req := request.PpidDataCategoriesQueryRequest{
+			ParentId: &result.ID,
+		}
+		subResult, _, _ := _i.Repo.GetAllNonPage(req)
+		ppidDataCategories = append(ppidDataCategories, mapper.PpidDataCategoriesResponseMapper(result, subResult))
 	}
 
 	return