Proposed Wording: Where the same source data can be represented in multiple ways, provide clear guidance on how they should be identified as coming from the same source data. For example, medication orders can be represented as MedicationRequest and MedicationStatement. Because each can carry somewhat different information, in practice we have to pull both. To figure out which MedicationRequests match with which MedicationStatements, we have to do attribute-level comparisons and hope we got the duplicates identified. This would be much easier and more reliable if there was clear guidance on how to identify resources coming from the same data – e.g., use of the same order ID.

Summary:

Add guidance for how content can be identified as having same source