diff --git a/python/lsst/pipe/base/_status.py b/python/lsst/pipe/base/_status.py
index b517cc1e7..ad26a8109 100644
--- a/python/lsst/pipe/base/_status.py
+++ b/python/lsst/pipe/base/_status.py
@@ -39,6 +39,7 @@
     "UnprocessableDataError",
     "AnnotatedPartialOutputsError",
     "NoWorkFound",
+    "UpstreamFailureNoWorkFound",
     "RepeatableQuantumError",
     "AlgorithmError",
     "InvalidQuantumError",
@@ -67,6 +68,13 @@ class NoWorkFound(BaseException):
     """
 
 
+class UpstreamFailureNoWorkFound(NoWorkFound):
+    """A specialization of `NoWorkFound` that indicates that an upstream task
+    had a problem that was ignored (e.g. to prevent a single-detector failure
+    from bringing down an entire visit).
+    """
+
+
 class RepeatableQuantumError(RuntimeError):
     """Exception that may be raised by PipelineTasks (and code they delegate
     to) in order to indicate that a repeatable problem that will not be