diff --git a/ecs/jskult-batch-daily/src/batch/dcf_inst_merge/integrate_dcf_inst_merge.py b/ecs/jskult-batch-daily/src/batch/dcf_inst_merge/integrate_dcf_inst_merge.py
index 2e4f9ca7..ab4d107a 100644
--- a/ecs/jskult-batch-daily/src/batch/dcf_inst_merge/integrate_dcf_inst_merge.py
+++ b/ecs/jskult-batch-daily/src/batch/dcf_inst_merge/integrate_dcf_inst_merge.py
@@ -107,14 +107,8 @@ def _add_ult_ident_presc(db: Database, enabled_dst_inst_merge_records: list[dict
                     logger.info('納入先処方元マスタの重複予定データなし')
                 _insert_ult_ident_presc(db, set_start_date, enabled_merge_record['dup_opp_cd'], ult_ident_presc_row)
 
-                # 適用終了日 < 適用開始日の場合
-                if _str_to_date_time(ult_ident_presc_row['end_date']) < start_date:
-                    # 対象レコードを物理削除する
-                    _delete_ult_ident_presc(db, ult_ident_presc_row['start_date'], ult_ident_presc_row,
-                                            '開始月＞適用開始日のため物理削除')
-                    continue
                 # 重複予定データが存在しない、且つ、適用終了日 ≧ 適用開始日の場合
-                if not is_exists_duplicate_key:
+                if not is_exists_duplicate_key and _str_to_date_time(ult_ident_presc_row['end_date']) >= start_date:
                     last_end_date = tekiyo_month_first_day - timedelta(days=1)
                     # 適用終了日を、DCF施設統合マスタの適用月度の前月末日で更新
                     _update_ult_ident_presc_end_date(db, _date_time_to_str(last_end_date), ult_ident_presc_row)