Should the OMOP visit_start_date be defaulted if it is absent in the source CDM?

National-COVID-Cohort-Collaborative / Data-Ingestion-and-Harmonization

Data Ingestion and Harmonization

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Should the OMOP visit_start_date be defaulted if it is absent in the source CDM? #53

Open cyaghmour opened 4 years ago

cyaghmour commented 4 years ago

If the source CDM does not provide visit/encounter start date, should the mandatory OMOP field visit_start_date be set to a default value? If so, what value? Or, should the visit/encounter record from the source be ignored?

shastak commented 4 years ago

For TriNetX and ACT this issue was resolved based on the CDM SME input. N3C will ignore the record when visit/encounter start date is missing in the TriNetX and ACT.

kmkostka commented 4 years ago

I would adopt this convention for PCORNet too. It will set off a Data Quality flag if you have visits that are not valid dates.