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Users with a similar question:
Payment.date is a FHIR resource element that is found only in prescription drug (Part D) claims. The C4BB profile that shows payment.date is for the pharmacy (Part D claims) resource profile. This may have caused some confusion about the availability of payment.date in other claim types.
Because payment.date is not provided in the other claim types, users may need to utilize other data fields available in DPC for their business use case. The data dictionary provides a list of "date" fields that may be of interest. (Please note this document is a shared resource across DPC and another CMS API product, BCDA, which provides similar data).
For example, Claim Through Date, Claim From Date, and Claim Effective Date are provided and may be of interest.
If there are other Medicare FFS data fields from the Chronic Conditions Warehouse (the data warehouse that precedes our data source) that may be useful, please let us know as we collect this feedback for consideration.
Best,
The DPC Team