diff --git a/models/terminology.models.go b/models/terminology.models.go
index 78f6e06..b445f5b 100644
--- a/models/terminology.models.go
+++ b/models/terminology.models.go
@@ -1,24 +1,26 @@
 package models
 
+import "database/sql"
+
 type TerminologyV0 struct {
-	ResourceType    string `db:"resource_type"`
-	AttributePath   string `db:"attribute_path"`
-	Code            string `db:"code"`
-	ParentCode      string `db:"parent_code"`
-	Display         string `db:"display"`
-	DisplayEn       string `db:"display_en"`
-	CodeSystem      string `db:"code_system"`
-	OrderNo         uint   `db:"order_no"`
-	FtIndex         string `db:"ft_index"`
-	UseInd          bool   `db:"use_ind"`
-	Description     string `db:"description"`
-	StatusCd        string `db:"status_cd"`
-	CreatedDttm     string `db:"created_dttm"`
-	CreatedUserID   uint   `db:"created_user_id"`
-	UpdatedDttm     string `db:"updated_dttm"`
-	UpdatedUserID   uint   `db:"updated_user_id"`
-	NullifiedDttm   string `db:"nullified_dttm"`
-	NullifiedUserID uint   `db:"nullified_user_id"`
+	ResourceType    string         `db:"resource_type"`
+	AttributePath   string         `db:"attribute_path"`
+	Code            string         `db:"code"`
+	ParentCode      string         `db:"parent_code"`
+	Display         string         `db:"display"`
+	DisplayEn       string         `db:"display_en"`
+	CodeSystem      string         `db:"code_system"`
+	OrderNo         uint           `db:"order_no"`
+	FtIndex         sql.NullString `db:"ft_index"`
+	UseInd          bool           `db:"use_ind"`
+	Description     sql.NullString `db:"description"`
+	StatusCd        string         `db:"status_cd"`
+	CreatedDttm     string         `db:"created_dttm"`
+	CreatedUserID   uint           `db:"created_user_id"`
+	UpdatedDttm     string         `db:"updated_dttm"`
+	UpdatedUserID   uint           `db:"updated_user_id"`
+	NullifiedDttm   string         `db:"nullified_dttm"`
+	NullifiedUserID uint           `db:"nullified_user_id"`
 }
 
 type TerminologyParamv0 struct {