diff --git a/src/app/Exceptions/MyAppException.php b/src/app/Exceptions/MyAppException.php
new file mode 100644
index 0000000..6c785a7
--- /dev/null
+++ b/src/app/Exceptions/MyAppException.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Exceptions;
+
+use Symfony\Component\HttpKernel\Exception\HttpException;
+
+/**
+ * Class MyAppException
+ * @package App\Exceptions
+ */
+abstract class MyAppException extends \Exception
+{
+    /**
+     * @return array ログ出力時の追加情報
+     */
+    abstract public function getContext(): array;
+
+    /**
+     * @return int HTTP ステータスコード
+     */
+    abstract public function getStatusCode(): int;
+
+    /**
+     * @return string ユーザ向けのメッセージ
+     */
+    abstract public function getUserMessage(): string;
+
+    /**
+     * @return HttpException
+     */
+    public function toHttpException(): HttpException
+    {
+        return new HttpException(
+            $this->getStatusCode(),
+            $this->getUserMessage(),
+            $this->getPrevious(),
+            [],
+            $this->code
+        );
+    }
+}