diff --git a/app/Controllers/Bag.php b/app/Controllers/Bag.php
index 662d676..9f7486b 100644
--- a/app/Controllers/Bag.php
+++ b/app/Controllers/Bag.php
@@ -331,7 +331,6 @@ class Bag extends BaseController
     {
         $lgIdx           = $this->lgIdx();
         $packagingUnits = [];
-        $dbDiag          = null;
         if ($lgIdx) {
             try {
                 $packagingUnits = model(PackagingUnitModel::class)->where('pu_lg_idx', $lgIdx)->orderBy('pu_bag_code', 'ASC')->findAll();
@@ -340,53 +339,7 @@ class Bag extends BaseController
             }
         }
 
-        if ($this->request->getGet('db_diag') === '1') {
-            $dbDiag = [
-                'lg_idx'            => $lgIdx,
-                'cfg_host'          => null,
-                'cfg_port'          => null,
-                'cfg_user'          => null,
-                'db_name'           => null,
-                'mysql_host'        => null,
-                'mysql_port'        => null,
-                'mysql_version'     => null,
-                'packaging_unit'    => null,
-                'code_kind'         => null,
-                'code_detail'       => null,
-                'error'             => null,
-            ];
-            try {
-                $db = db_connect();
-                $cfg = config('Database')->default ?? [];
-                $dbDiag['cfg_host'] = $cfg['hostname'] ?? null;
-                $dbDiag['cfg_port'] = isset($cfg['port']) ? (string) $cfg['port'] : null;
-                $dbDiag['cfg_user'] = $cfg['username'] ?? null;
-                $dbDiag['db_name'] = $db->database;
-                $meta = $db->query('SELECT @@hostname AS mysql_host, @@port AS mysql_port, @@version AS mysql_version, DATABASE() AS db_name')->getRowArray();
-                if (is_array($meta)) {
-                    $dbDiag['mysql_host'] = $meta['mysql_host'] ?? null;
-                    $dbDiag['mysql_port'] = isset($meta['mysql_port']) ? (string) $meta['mysql_port'] : null;
-                    $dbDiag['mysql_version'] = $meta['mysql_version'] ?? null;
-                    if (! empty($meta['db_name'])) {
-                        $dbDiag['db_name'] = (string) $meta['db_name'];
-                    }
-                }
-                $dbDiag['packaging_unit'] = (int) $db->table('packaging_unit')->where('pu_lg_idx', (int) $lgIdx)->countAllResults();
-                $dbDiag['code_kind'] = (int) $db->table('code_kind')->countAllResults();
-                $dbDiag['code_detail'] = (int) $db->table('code_detail')->countAllResults();
-            } catch (\Throwable $e) {
-                $dbDiag['error'] = $e->getMessage();
-                log_message('error', '[packagingUnits][db_diag] {type}: {message}', [
-                    'type'    => $e::class,
-                    'message' => $e->getMessage(),
-                ]);
-            }
-        }
-
-        return $this->render('포장 단위', 'bag/packaging_units', [
-            'packagingUnits' => $packagingUnits,
-            'dbDiag'         => $dbDiag,
-        ]);
+        return $this->render('포장 단위', 'bag/packaging_units', ['packagingUnits' => $packagingUnits]);
     }
 
     /**
diff --git a/app/Views/bag/packaging_units.php b/app/Views/bag/packaging_units.php
index 9772580..23e325b 100644
--- a/app/Views/bag/packaging_units.php
+++ b/app/Views/bag/packaging_units.php
@@ -1,23 +1,4 @@
 <div class="space-y-4">
-  <?php if (isset($dbDiag) && is_array($dbDiag)): ?>
-  <section class="rounded border border-amber-300 bg-amber-50 px-3 py-2 text-xs text-amber-900">
-    <div class="font-semibold mb-1">DB 진단 모드</div>
-    <div>lg_idx: <?= esc((string) ($dbDiag['lg_idx'] ?? 'null')) ?></div>
-    <div>cfg_host: <?= esc((string) ($dbDiag['cfg_host'] ?? '')) ?></div>
-    <div>cfg_port: <?= esc((string) ($dbDiag['cfg_port'] ?? '')) ?></div>
-    <div>cfg_user: <?= esc((string) ($dbDiag['cfg_user'] ?? '')) ?></div>
-    <div>database: <?= esc((string) ($dbDiag['db_name'] ?? '')) ?></div>
-    <div>mysql_host(@@hostname): <?= esc((string) ($dbDiag['mysql_host'] ?? '')) ?></div>
-    <div>mysql_port(@@port): <?= esc((string) ($dbDiag['mysql_port'] ?? '')) ?></div>
-    <div>mysql_version(@@version): <?= esc((string) ($dbDiag['mysql_version'] ?? '')) ?></div>
-    <div>packaging_unit(현재 lg): <?= esc((string) ($dbDiag['packaging_unit'] ?? 'null')) ?></div>
-    <div>code_kind: <?= esc((string) ($dbDiag['code_kind'] ?? 'null')) ?></div>
-    <div>code_detail: <?= esc((string) ($dbDiag['code_detail'] ?? 'null')) ?></div>
-    <?php if (! empty($dbDiag['error'])): ?>
-    <div class="mt-1 text-red-700">error: <?= esc((string) $dbDiag['error']) ?></div>
-    <?php endif; ?>
-  </section>
-  <?php endif; ?>
   <p class="text-sm text-gray-600">
     <a href="<?= base_url('bag/basic-info') ?>" class="text-blue-600 hover:underline">&larr; 기본정보관리</a>
     <span class="mx-2 text-gray-300">|</span>