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  1. FHIR Specification Feedback
  2. FHIR-36117

DTR Document Reference R4 Resource Profile Inappropriately Marks Elements As Must Support

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    • Icon: Change Request Change Request
    • Resolution: Persuasive with Modification
    • Icon: Medium Medium
    • US Da Vinci DTR (FHIR)
    • 1.1.0-ballot [deprecated]
    • Clinical Decision Support
    • DTR Document Reference R4 [deprecated]
    • Artifact List
    • 5.3.1, 3.9
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      The FHIR specification makes it clear that when profiling another profile, a MustSupport flag can be constrained further (i.e., taken from 'false' to 'true') but cannot be loosened (i.e., changed from 'true' to 'false').  http://hl7.org/fhir/us/core/must-support.html#must-support-elements 

      But, the wording within DTR '3.9 Must Support' (http://build.fhir.org/ig/HL7/davinci-dtr/underlying_technologies.html#must-support) needs to be clarified with more specificity regarding this requirement and that DTR does NOT add additional Must Support constraints to DocumentReference.

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      The FHIR specification makes it clear that when profiling another profile, a MustSupport flag can be constrained further (i.e., taken from 'false' to 'true') but cannot be loosened (i.e., changed from 'true' to 'false').   http://hl7.org/fhir/us/core/must-support.html#must-support-elements   But, the wording within DTR ' 3.9 Must Support ' ( http://build.fhir.org/ig/HL7/davinci-dtr/underlying_technologies.html#must-support) needs to be clarified with more specificity regarding this requirement and that DTR does NOT add additional Must Support constraints to DocumentReference.
    • Bob Dieterle / Isaac Vetter : 11-0-0
    • Clarification
    • Non-substantive

    Description

      According to Section 3.9 - Must Support, the DTR implementation guide does not mark any elements with the Must Support flag in its profiles. And yet, the DTR Document Reference resource profile has several elements marked with the Must Support flag.

      Recommended change: Remove the Must Support flag from each element currently marked as such.

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            fswitzer Fred Switzer
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