diff --git a/frontend_tests/node_tests/lib/events.js b/frontend_tests/node_tests/lib/events.js
index 0c1db89038..f35d67d72d 100644
--- a/frontend_tests/node_tests/lib/events.js
+++ b/frontend_tests/node_tests/lib/events.js
@@ -663,6 +663,7 @@ exports.fixtures = {
             name: "Mobile",
             description: "mobile folks",
             members: [1],
+            is_system_group: false,
         },
     },
 
diff --git a/templates/zerver/api/changelog.md b/templates/zerver/api/changelog.md
index 1628e9fcfe..afc66a5098 100644
--- a/templates/zerver/api/changelog.md
+++ b/templates/zerver/api/changelog.md
@@ -11,6 +11,12 @@ below features are supported.
 
 ## Changes in Zulip 5.0
 
+**Feature level 93**
+
+* [`POST /register`](/api/register-queue), [`GET /user_groups`](/api/get-user-groups),
+  [`GET /events`](/api/get-events): Added `is_system_group` field to user group
+  objects.
+
 **Feature level 92**
 
 * [`GET /messages`](/api/get-messages), [`POST
diff --git a/version.py b/version.py
index 8a35bce9e0..ef4a99d3ba 100644
--- a/version.py
+++ b/version.py
@@ -33,7 +33,7 @@ DESKTOP_WARNING_VERSION = "5.4.3"
 # Changes should be accompanied by documentation explaining what the
 # new level means in templates/zerver/api/changelog.md, as well as
 # "**Changes**" entries in the endpoint's documentation in `zulip.yaml`.
-API_FEATURE_LEVEL = 92
+API_FEATURE_LEVEL = 93
 
 # Bump the minor PROVISION_VERSION to indicate that folks should provision
 # only when going from an old version of the code to a newer version. Bump
diff --git a/zerver/lib/actions.py b/zerver/lib/actions.py
index e82af0d5cc..a06617903a 100644
--- a/zerver/lib/actions.py
+++ b/zerver/lib/actions.py
@@ -7697,6 +7697,7 @@ def do_send_create_user_group_event(user_group: UserGroup, members: List[UserPro
             members=[member.id for member in members],
             description=user_group.description,
             id=user_group.id,
+            is_system_group=user_group.is_system_group,
         ),
     )
     send_event(user_group.realm, event, active_user_ids(user_group.realm_id))
diff --git a/zerver/lib/event_schema.py b/zerver/lib/event_schema.py
index 04f2dafda7..1c8ed8c3fe 100644
--- a/zerver/lib/event_schema.py
+++ b/zerver/lib/event_schema.py
@@ -1606,6 +1606,7 @@ group_type = DictType(
         ("name", str),
         ("members", ListType(int)),
         ("description", str),
+        ("is_system_group", bool),
     ]
 )
 
diff --git a/zerver/lib/user_groups.py b/zerver/lib/user_groups.py
index a41b6f4467..ab1aa20972 100644
--- a/zerver/lib/user_groups.py
+++ b/zerver/lib/user_groups.py
@@ -40,6 +40,7 @@ def user_groups_in_realm_serialized(realm: Realm) -> List[Dict[str, Any]]:
             name=user_group.name,
             description=user_group.description,
             members=[],
+            is_system_group=user_group.is_system_group,
         )
 
     membership = UserGroupMembership.objects.filter(user_group__realm=realm).values_list(
diff --git a/zerver/openapi/zulip.yaml b/zerver/openapi/zulip.yaml
index 46932f7d61..3e4d53c071 100644
--- a/zerver/openapi/zulip.yaml
+++ b/zerver/openapi/zulip.yaml
@@ -2526,6 +2526,7 @@ paths:
                                       "members": [12],
                                       "description": "Backend team",
                                       "id": 2,
+                                      "is_system_group": false,
                                     },
                                   "id": 0,
                                 }
@@ -12418,6 +12419,13 @@ paths:
                               type: string
                               description: |
                                 User group name.
+                            is_system_group:
+                              type: boolean
+                              description: |
+                                Whether the user group is a system group which cannot be
+                                modified by users.
+
+                                **Changes**: New in Zulip 5.0 (feature level 93).
                         description: |
                           A list of `user_group` objects, which contain a `description`, a `name`,
                           their `id` and the list of members of the user group.
@@ -12432,12 +12440,14 @@ paths:
                               "id": 1,
                               "name": "hamletcharacters",
                               "members": [3, 4],
+                              "is_system_group": false,
                             },
                             {
                               "description": "Other users",
                               "id": 2,
                               "name": "other users",
                               "members": [1, 2],
+                              "is_system_group": true,
                             },
                           ],
                       }
@@ -13191,6 +13201,13 @@ components:
           type: integer
           description: |
             The ID of the user group.
+        is_system_group:
+          type: boolean
+          description: |
+            Whether the user group is a system group which cannot be
+            directly modified by users.
+
+            **Changes**: New in Zulip 5.0 (feature level 93).
     Subscriptions:
       type: object
       additionalProperties: false