Dear CDM builders,
I would like to ask you about a new field observation_event_id in Observation table.
I have the following use case: there is an information about allergic reactions on drugs. I was thinking to store allergic reactions to Observation table to the field value_as_concept_id with observation_concept_id = 4166257 (Allergic reaction to drug) and to store drugs to Observation table to the field value_as_concept_id with observation_concept_id = 439224 (Drug allergy).
The question is: could I use observation_event_id column to link allergic reaction and an associated drug? I was also thinking to link it with Fact_relationship table, but I didnt find the corresponding concept.
Many thanks in advance for your help,