diff --git a/include/common/err_codes.h b/include/common/err_codes.h
new file mode 100644
index 0000000..9ef2fd8
--- /dev/null
+++ b/include/common/err_codes.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2003-2018, Great Software Laboratory Pvt. Ltd.
+ * Copyright (c) 2017 Intel Corporation
+ * Copyright (c) 2019, Infosys Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ERROR_CODES_H_
+#define ERROR_CODES_H_
+
+/***
+Common error codes across MME
+*/
+
+enum ERROR_CODES{
+	SUCCESS = 0,
+	/*Generic error codes 0-100*/
+	E_FAIL,
+	E_FAIL_INIT, /*Failed in initialization*/
+	E_ALLOC_FAILED,
+	E_PARSING_FAILED,
+
+	/*S1AP error codes 200-300 */
+	S1AP_AUTH_FAILED = 201,
+	S1AP_SECMODE_FAILED,
+	S1AP_IDENTITY_FAILED,
+
+	/*S6a error codes 300-500*/
+	S6A_AIA_FAILED = 301,
+	S6A_FD_ERROR,
+	S6A_FD_CORE_INIT_FAILED,
+	S6A_FD_CORE_PARSECONF_FAILED,
+	S6A_FD_CORE_START_FAILED,
+	S6A_FD_GET_DICTVAL_FAILED,
+	S6A_FD_DICTSRCH_FAILED,
+};
+
+#endif /* ERROR_CODES_H__*/