Request for Intravenous Antibiotic - Vancomycin - active - with link to encounter, reasonCode, and note

{
  "resourceType" : "MedicationRequest",
  "id" : "medrx0318",
  "contained" : [{
    "resourceType" : "Medication",
    "id" : "med0301",
    "code" : {
      "coding" : [{
        "system" : "http://hl7.org/fhir/sid/ndc",
        "code" : "0409-6531-02",
        "display" : "Vancomycin Hydrochloride, 10 VIAL in 1 TRAY (0409-6531-02) > 1 INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION in 1 VIAL (0409-6531-12) (package)"
      }],
      "text" : "Vancomycin Hydrochloride (VANCOMYCIN HYDROCHLORIDE)"
    }
  }],
  "identifier" : [{
    "use" : "official",
    "system" : "http://www.bmc.nl/portal/prescriptions",
    "value" : "12345689"
  }],
  "status" : "active",
  "intent" : "order",
  "medication" : {
    "reference" : {
      "reference" : "#med0301"
    }
  },
  "subject" : {
    "reference" : "Patient/pat1",
    "display" : "Donald Duck"
  },
  "encounter" : {
    "reference" : "Encounter/f001",
    "display" : "encounter who leads to this prescription"
  },
  "authoredOn" : "2015-01-15",
  "requester" : {
    "reference" : "Practitioner/f007",
    "display" : "Patrick Pump"
  },
  "reason" : [{
    "concept" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "11840006",
        "display" : "Traveler's diarrhea (disorder)"
      }]
    }
  }],
  "note" : [{
    "text" : "culture expected back in 12 hours - may switch depending on results"
  }],
  "dosageInstruction" : {
    "step" : [{
      "component" : [{
        "text" : "500mg IV q6h x 3 days",
        "timing" : {
          "event" : ["2020-01-01"],
          "repeat" : {
            "boundsPeriod" : {
              "start" : "2020-01-01",
              "end" : "2020-01-10"
            },
            "frequency" : 1,
            "period" : 6,
            "periodUnit" : "h"
          }
        },
        "route" : {
          "coding" : [{
            "system" : "http://snomed.info/sct",
            "code" : "255560000",
            "display" : "Intravenous"
          }]
        },
        "method" : {
          "coding" : [{
            "system" : "http://snomed.info/sct",
            "code" : "420620005",
            "display" : "Push - dosing instruction imperative (qualifier value)"
          }]
        },
        "doseAndRate" : [{
          "type" : {
            "coding" : [{
              "system" : "http://terminology.hl7.org/CodeSystem/dose-rate-type",
              "code" : "ordered",
              "display" : "Ordered"
            }]
          },
          "doseQuantity" : {
            "value" : 500,
            "unit" : "mg",
            "system" : "http://unitsofmeasure.org",
            "code" : "mg"
          }
        }]
      }]
    }]
  }
}