Encounter Participant Cardinality

[anthonygalba]

For UDS Plus Encounter, the Participant element has a cardinality of 0..1, which means there can be a max of one participant on an encounter.
In US Core Encounter, the Participant element has a cardinality of 0..*, allowing for multiple participants on an encounter.

I do not see any explanation for this change in the UDS+ IG. Is this an intentional change?
In Epic, you can definitely document more than one provider on an encounter. We request that you update the cardinality of the Participant element to align with US Core and allow more than one participant per encounter resource.

[nbashyam]

We will make a change to allow for multiple participants (0..*) , so in the upcoming version we will change it.