diff --git a/pymilvus/client/grpc_handler.py b/pymilvus/client/grpc_handler.py
index 699e510b4..b34fd1f5a 100644
--- a/pymilvus/client/grpc_handler.py
+++ b/pymilvus/client/grpc_handler.py
@@ -911,7 +911,7 @@ def list_indexes(self, collection_name: str, timeout: Optional[float] = None, **
         status = response.status
         if status.code == 0:
             return response.index_descriptions
-        if status.code == Status.INDEX_NOT_EXIST:
+        if status.code in [Status.INDEX_NOT_EXIST, Status.INDEX_NOT_FOUND]:
             return []
         raise MilvusException(status.code, status.reason, status.error_code)
 
@@ -930,7 +930,7 @@ def describe_index(
         rf = self._stub.DescribeIndex.future(request, timeout=timeout)
         response = rf.result()
         status = response.status
-        if status.code == Status.INDEX_NOT_EXIST:
+        if status.code in [Status.INDEX_NOT_EXIST, Status.INDEX_NOT_FOUND]:
             return None
         if status.code != 0:
             raise MilvusException(status.code, status.reason)
diff --git a/pymilvus/client/types.py b/pymilvus/client/types.py
index 0c64ba724..71c6cdbd9 100644
--- a/pymilvus/client/types.py
+++ b/pymilvus/client/types.py
@@ -49,6 +49,7 @@ class Status:
     OUT_OF_MEMORY = 24
     INDEX_NOT_EXIST = 25
     EMPTY_COLLECTION = 26
+    INDEX_NOT_FOUND = 700
 
     def __init__(self, code: int = SUCCESS, message: str = "Success") -> None:
         self.code = code