Patient export _since date clarification

[Nicholas]

Hi BCDA team,

I was looking into how the _since cutoff date is applied to Patient resources and whether it was based off:

1. The latest update date of an ExplanationOfBenefit that references it
2. The last date that the Patient data was updated
3. Something else?

After talking with some other people it sounds like it worked like 2 when BCDA was using the v1 API, and from briefly looking at the code it seems like the case (I noticed some CCLF8 date comparisons with the _since date). From what I can tell, the sandbox data seems to all have the same update date so I wasn't able to confirm using it. Am I understanding how this works correctly?

Thanks,

Nik

[Beneficiary Claims Data API (BCDA) Community]

Hi Nik,

Thanks for your question. Your understanding is correct - requests using the _since parameter will exclude Patient resources which have not been updated after the date provided.

Thanks,
The BCDA Team