diff --git a/homeassistant/components/websocket_api/commands.py b/homeassistant/components/websocket_api/commands.py
index 15aa9e82f61b80..471bbc4745aa72 100644
--- a/homeassistant/components/websocket_api/commands.py
+++ b/homeassistant/components/websocket_api/commands.py
@@ -270,7 +270,7 @@ async def handle_call_service(
         connection.logger.debug("", exc_info=err)
         connection.send_error(
             msg["id"],
-            const.ERR_HOME_ASSISTANT_ERROR,
+            const.ERR_SERVICE_VALIDATION_ERROR,
             f"Validation error: {err}",
             translation_domain=err.translation_domain,
             translation_key=err.translation_key,
diff --git a/homeassistant/components/websocket_api/const.py b/homeassistant/components/websocket_api/const.py
index 4b9a0943d9a294..9a44f80a5c8b77 100644
--- a/homeassistant/components/websocket_api/const.py
+++ b/homeassistant/components/websocket_api/const.py
@@ -32,6 +32,7 @@
 ERR_NOT_FOUND: Final = "not_found"
 ERR_NOT_SUPPORTED: Final = "not_supported"
 ERR_HOME_ASSISTANT_ERROR: Final = "home_assistant_error"
+ERR_SERVICE_VALIDATION_ERROR: Final = "service_validation_error"
 ERR_UNKNOWN_COMMAND: Final = "unknown_command"
 ERR_UNKNOWN_ERROR: Final = "unknown_error"
 ERR_UNAUTHORIZED: Final = "unauthorized"
diff --git a/homeassistant/components/websocket_api/messages.py b/homeassistant/components/websocket_api/messages.py
index fae310f9f80027..34ca6886b5eddc 100644
--- a/homeassistant/components/websocket_api/messages.py
+++ b/homeassistant/components/websocket_api/messages.py
@@ -78,8 +78,6 @@ def error_message(
         "code": code,
         "message": message,
     }
-    # In case a ServiceNotFound error is raised
-    # we use 'websocket_api' as default translation_domain.
     # In case `translation_key` is `None` we do not set it, nor the
     # `translation`_placeholders` and `translation_domain`.
     if translation_key is not None:
diff --git a/tests/components/websocket_api/test_commands.py b/tests/components/websocket_api/test_commands.py
index 1784b7ef45208a..34424545666028 100644
--- a/tests/components/websocket_api/test_commands.py
+++ b/tests/components/websocket_api/test_commands.py
@@ -526,7 +526,7 @@ async def unknown_error_call(_):
     assert msg["id"] == 6
     assert msg["type"] == const.TYPE_RESULT
     assert msg["success"] is False
-    assert msg["error"]["code"] == "home_assistant_error"
+    assert msg["error"]["code"] == "service_validation_error"
     assert msg["error"]["message"] == "Validation error: error_message"
     assert msg["error"]["translation_placeholders"] == {"option": "bla"}
     assert msg["error"]["translation_key"] == "custom_error"