Encounter State Machine

The Encounter State Machine enforces valid ADT transitions — admitted, transferred, discharged — rejecting illegal jumps that would corrupt census.

Behaviour

Validates trigger against current state before any Encounter Repository write.
Illegal transitions return a structured error to ingestion so the hospital can reconcile.
Emits transition metadata to the Event Publisher.

Encounter State Machine

The Encounter State Machine enforces valid ADT transitions — admitted, transferred, discharged — rejecting illegal jumps that would corrupt census.

Behaviour

Validates trigger against current state before any Encounter Repository write.
Illegal transitions return a structured error to ingestion so the hospital can reconcile.
Emits transition metadata to the Event Publisher.