MelaniePhilofsky

Moving this to the "Needs more work" column. The Vocabulary team has done more work on this topic, we need to collaborate with them before providing guidance.

@cgreich Are there sources for UDIs? Or are they like NDCs, each manufacturer gets to assign as they see fit?

Even the tables with no changes are listed @clairblacketer with "No change". Provider is the only CDM table excluded from the list on this [page](https://ohdsi.github.io/CommonDataModel/cdm54Changes.html)

The University of Colorado is participating in a non-OHDSI OMOP CDM network study which requires a date as a value in the Observation table. **Use case:** Estimated Date of Deliver...

I'll take this issue