diff --git a/ecs/jskult-batch-daily/src/batch/ultmarc/utmp_tables/table_mapper/concrete/com_prefc_med_sp_outpat_mapper.py b/ecs/jskult-batch-daily/src/batch/ultmarc/utmp_tables/table_mapper/concrete/com_prefc_med_sp_outpat_mapper.py
index 2a1ae3ca..5c5f488f 100644
--- a/ecs/jskult-batch-daily/src/batch/ultmarc/utmp_tables/table_mapper/concrete/com_prefc_med_sp_outpat_mapper.py
+++ b/ecs/jskult-batch-daily/src/batch/ultmarc/utmp_tables/table_mapper/concrete/com_prefc_med_sp_outpat_mapper.py
@@ -121,8 +121,6 @@ class ComPrefcMedSpOutpatMapper(UltmarcTableMapper):
         # 分類補助ｺｰﾄﾞ
         if len(self.record.sectsub_cd) > 0:
             set_clauses.append("sectsub_cd = :sectsub_cd")
-            if self.record.sectsub_cd == "@":
-                self.query_parameter["sectsub_cd"] = None
 
         update_columns = ",".join(set_clauses)
         # 何も更新項目が無い場合はNoneとする（更新処理は行わない）