IV administration through the distal port of a triple lumen catheter (port Device with the catheter as parent)

{
  "resourceType" : "MedicationAdministration",
  "id" : "medadmin0314",
  "contained" : [{
    "resourceType" : "Device",
    "id" : "catheter",
    "status" : "active",
    "name" : [{
      "value" : "Triple lumen central venous catheter",
      "type" : {
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/device-nametype",
          "code" : "user-friendly-name"
        }]
      }
    }],
    "type" : [{
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "397970004",
        "display" : "Triple lumen catheter"
      }]
    }]
  },
  {
    "resourceType" : "Device",
    "id" : "port",
    "status" : "active",
    "name" : [{
      "value" : "Distal port",
      "type" : {
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/device-nametype",
          "code" : "user-friendly-name"
        }]
      }
    }],
    "type" : [{
      "text" : "Catheter port (distal lumen)"
    }],
    "parent" : {
      "reference" : "#catheter"
    }
  },
  {
    "resourceType" : "Device",
    "id" : "pump",
    "status" : "active",
    "serialNumber" : "IP-20817-44",
    "name" : [{
      "value" : "Infusion pump",
      "type" : {
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/device-nametype",
          "code" : "user-friendly-name"
        }]
      }
    }],
    "type" : [{
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "430033006",
        "display" : "Infusion pump"
      }]
    }]
  }],
  "status" : "completed",
  "medication" : {
    "concept" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "780751008",
        "display" : "Vancomycin only product in parenteral dose form"
      }]
    }
  },
  "subject" : {
    "reference" : "Patient/pat1",
    "display" : "Donald Duck"
  },
  "occurrencePeriod" : {
    "start" : "2026-02-12T08:00:00+01:00",
    "end" : "2026-02-12T09:30:00+01:00"
  },
  "performer" : [{
    "actor" : {
      "reference" : {
        "reference" : "Practitioner/f007"
      }
    }
  }],
  "device" : [{
    "reference" : {
      "reference" : "#port"
    }
  },
  {
    "reference" : {
      "reference" : "#pump"
    }
  }],
  "dosage" : {
    "text" : "Vancomycin 1 g IV over 90 minutes by infusion pump, through the distal port of the triple lumen catheter",
    "route" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "47625008",
        "display" : "Intravenous route"
      }]
    },
    "dose" : {
      "value" : 1,
      "unit" : "g",
      "system" : "http://unitsofmeasure.org",
      "code" : "g"
    }
  }
}