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Agenda

• Approve FHIR Infrastructure Minutes CC 2023-08-21
• Review WGM Schedule
• Issues left from previous meeting
  • Adding jurisdiction to usage-context
  • Backporting CodeableReference
  • Withdrawn IGs

Attendees

Labor Day (Sept 4)

• Agreed to cancel FHIR-I call that day.

Minutes Approval

• Motion to approve FHIR Infrastructure Minutes CC 2023-08-21
• Rick Geimer/Yunwei Wang: 9-0-1

WGM Agenda Updates

• FHIR Infrastructure WGM Agenda 202309

UTG Discussion

• FMG asked FHIR-I to review/discuss. Done.

Backporting CodeableReference

• Zulip discussion: https://chat.fhir.org/#narrow/stream/179280-fhir.2Finfrastructure-wg/topic/Backporting.20CodeableReference
• Considering the datatype extension: https://build.fhir.org/ig/HL7/fhir-extensions/StructureDefinition-datatype.html. But unfortunately value[x] is constrained to string instead of a URL, and also the extension.url value ends with _datatype instead of just datatype. 
• The extension is referenced from the following normative page, so may not be an option to change it:
  https://hl7.org/fhir/versions.html#extensions
• Other option would be to create a new extension for codeable reference. 
• Lloyd crafted several options for discussion in notepad++, see below. Will continue the discussion next time. 

{
  "url" : "http://hl7.org/fhir/StructureDefinition/individual-genderIdentity",
  {
    "url" : "supportingInfo",
    "extension" : [
      {
        "url" : "concept",
        "valueCodeableConcept": ...
      },
      {
        "url" : "reference",
        "valueReference": ...
      }
    ]
  }
}
        
{
  "url": "http://hl7.org/fhir/StructureDefinition/individual-genderIdentity",
  {
    "url" : "supportingInfo",
    "extension" : [{
      "url" : "http://hl7.org/fhir/5.0/StructureDefinition/extension-Extension.valueCodeableReference",
      "extension" : [{
        "url" : "concept",
        "valueCodeableConcept": ...
      },
      {
        "url" : "reference",
        "valueReference": ...
      }]
    }]
  }
}  

{
  "_resourceType" : "Observation",
  "extension" : [{
    "url" : "http://hl7.org/fhir/6.0/StructureDefinition/extension-Observation.valueCodeableReference",
    "extension" : [{
      "url" : "concept",
      "valueCodeableConcept": ...
    },
    {
      "url" : "reference",
      "valueReference": ...
    }]
  }]
}        

{
  "_resourceType": "Encounter",
  "diagnosis": {
    "extension" : [{
      "url": "http://hl7.org/fhir/5.0/StructureDefinition/extension-Observation.diagnosis.condition",
      "extension" [{
        "url" : "concept",
        "valueCodeableConcept": ...
      },
      {
        "url" : "reference",
        "valueReference": ...
      }]
    }]
  }
}

{
  "_resourceType" : "EpisodeOfCare",
  "extension" : [{
    "url" : "http://hl7.org/fhir/5.0/StructureDefinition/extension-EpisodeOfCare.reason",
    "extension" : [{
      "url" : "use",
      "valueCodeableConcept" : ...
    }, {
      "url" : "value",
      "extension" : [{
        "url" : "concept",
        "valueCodeableConcept": ...
      },
      {
        "url" : "reference",
        "valueReference": ...
      }]
    }]
  }]
}

{
  "url" : "someInt64|stringExtension",
  "valueString" : "SomeLongInt"
}

Adjournment

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