Medical gas order: HeliOx 79/21 at 6 to 8 L/min via non-rebreather mask (grouped with medicationrequest0352)

{
  "resourceType" : "MedicationRequest",
  "id" : "medrx0351",
  "groupIdentifier" : {
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:uuid:8b7a3c6e-4d2f-4a1b-9e0c-5f6d7e8a9b10"
  },
  "status" : "active",
  "intent" : "order",
  "medication" : {
    "concept" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "895694008",
        "display" : "Helium 0.79 mL/mL and oxygen 0.21 mL/mL gas for inhalation"
      }],
      "text" : "HeliOx 79/21 (helium 79% / oxygen 21%)"
    }
  },
  "subject" : {
    "reference" : "Patient/pat1",
    "display" : "Donald Duck"
  },
  "authoredOn" : "2026-02-10",
  "requester" : {
    "reference" : "Practitioner/f007"
  },
  "device" : [{
    "concept" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "427591007",
        "display" : "Nonrebreather oxygen mask"
      }]
    }
  }],
  "reason" : [{
    "concept" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "71186008",
        "display" : "Croup (disorder)"
      }]
    }
  }],
  "dosageInstruction" : {
    "renderedInstruction" : "HeliOx 79/21 at 6 L/min (6 to 8 L/min) via non-rebreather mask",
    "step" : [{
      "component" : [{
        "text" : "HeliOx 79/21 at 6 L/min (6 to 8 L/min) via non-rebreather mask",
        "route" : {
          "coding" : [{
            "system" : "http://snomed.info/sct",
            "code" : "447694001",
            "display" : "Respiratory tract route"
          }]
        },
        "doseAndRate" : [{
          "rateRange" : {
            "low" : {
              "value" : 6,
              "unit" : "L/min",
              "system" : "http://unitsofmeasure.org",
              "code" : "L/min"
            },
            "high" : {
              "value" : 8,
              "unit" : "L/min",
              "system" : "http://unitsofmeasure.org",
              "code" : "L/min"
            }
          }
        }]
      }]
    }]
  }
}