Class toggle based on null reply

Hello,

I am trying to apply a “Class Toggle” if my query returns a null value. The reason for this is to alert the user of a certain condition having been/not been met.

To be more specific, the query is the second step of an initial query as shown below.

Here is the query result:

image885×143 7.02 KB

Here is my logic:

Condition:
(encounter_get.data.get_patient_payer_status == null)

I have a similar class toggle based on a values not null that’s working nicely, but can’t figure out how to make this specific instance work when the subquery returns null.

I’ve tried putting null in quotes and that didn’t work as well as doing things with length count and using values of the query fields >0 without luck.

Any help on this would be greatly appreciated.