Data used to categorize individuals for identification, records matching, and other purposes.

Data Element

Identifier
Description

An identifier for the patient

Comment

CDC's Consolidated Comment for USCDI v5

  • CDC continues to recommend this data element for USCDI v5.
  • NACCHO Comment: LHDs will also be able to use this to attribute encounter level information to a person-level, which is what is used for prevention analysis and program creation.

Unified Comment from CDC

  • General Comment: This comment supports the promotion of the Data Class Patient Demographics - Data Element Identifier to USCDI V3 as well as the additional Data Element of Identifier System, including the allowance of multiple instances of Identifier/ Identifier System pairs per patient (approach 1). We believe that this will allow needed flexibility to accommodate use and exchange of the variety of patient identifiers in current use in the US. An example of this approaches is: Identifier: 333224444, Identifier System: http://hl7.org/fhir/sid/us-ssn.
     
  • If ONC does not choose to incorporate approach 1, (Identifier + Identifier System), in USCDI V3, we recommend allowing for the following Patient Demographic Data Class Data Elements in USCDI V3: Medicare Patient Identifier, Medical Record Number and Social Security Number. (approach 2) We believe that allowing for both approaches would be confusing, so we recommend choosing one or the other.

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