diff --git a/lms/djangoapps/verify_student/models.py b/lms/djangoapps/verify_student/models.py
index 6dadd14634e4..e0b6c7643c8e 100644
--- a/lms/djangoapps/verify_student/models.py
+++ b/lms/djangoapps/verify_student/models.py
@@ -1215,11 +1215,6 @@ class VerificationAttempt(TimeStampedModel):
         blank=True,
     )
 
-    @property
-    def expiration_datetime(self):
-        """Backwards compatibility with existing IDVerification models"""
-        return self.expiration_date
-
     @property
     def updated_at(self):
         """Backwards compatibility with existing IDVerification models"""
diff --git a/lms/djangoapps/verify_student/services.py b/lms/djangoapps/verify_student/services.py
index 5b88025719ca..2a5f77e3fbfb 100644
--- a/lms/djangoapps/verify_student/services.py
+++ b/lms/djangoapps/verify_student/services.py
@@ -251,11 +251,18 @@ def get_verification_details_by_id(cls, attempt_id):
         """
         Returns a verification attempt object by attempt_id
         If the verification object cannot be found, returns None
+
+        This method does not take into account verifications stored in the
+        VerificationAttempt model used for pluggable IDV implementations.
+
+        As part of the work to implement pluggable IDV, this method's use
+        will be deprecated: DEPR-XXX
         """
         verification = None
 
-        # TODO: Not updated for new model since we can't query multiple tables
-        # by id.
+        # This does not look at the VerificationAttempt model since the provided id would become
+        # ambiguous between tables. The verification models in this list all inherit from the same
+        # base class and share the same id space.
         verification_models = [
             SoftwareSecurePhotoVerification,
             SSOVerification,
diff --git a/lms/djangoapps/verify_student/tests/test_services.py b/lms/djangoapps/verify_student/tests/test_services.py
index 19c85d9149ab..5351e3ede699 100644
--- a/lms/djangoapps/verify_student/tests/test_services.py
+++ b/lms/djangoapps/verify_student/tests/test_services.py
@@ -58,7 +58,10 @@ def test_user_is_verified(self, verification_model):
             assert not IDVerificationService.user_is_verified(user), status
 
         attempt.status = "approved"
-        attempt.expiration_date = now() + timedelta(days=19)
+        if verification_model == VerificationAttempt:
+            attempt.expiration_datetime = now() + timedelta(days=19)
+        else:
+            attempt.expiration_date = now() + timedelta(days=19)
         attempt.save()
 
         assert IDVerificationService.user_is_verified(user), attempt.status
@@ -84,7 +87,10 @@ def test_user_has_valid_or_pending(self, verification_model):
         # -- must_retry, and submitted both count until we hear otherwise
         for status in ["submitted", "must_retry", "approved"]:
             attempt.status = status
-            attempt.expiration_date = now() + timedelta(days=19)
+            if verification_model == VerificationAttempt:
+                attempt.expiration_datetime = now() + timedelta(days=19)
+            else:
+                attempt.expiration_date = now() + timedelta(days=19)
             attempt.save()
             assert IDVerificationService.user_has_valid_or_pending(user), status
 
@@ -188,7 +194,7 @@ def test_get_expiration_datetime_mixed_models(self):
             user=user, status='approved', expiration_date=datetime(2021, 11, 12, 0, 0, tzinfo=timezone.utc)
         )
         newest = VerificationAttempt.objects.create(
-            user=user, status='approved', expiration_date=datetime(2022, 1, 12, 0, 0, tzinfo=timezone.utc)
+            user=user, status='approved', expiration_datetime=datetime(2022, 1, 12, 0, 0, tzinfo=timezone.utc)
         )
 
         expiration_datetime = IDVerificationService.get_expiration_datetime(user, ['approved'])