Request for Intravenous Antibiotic with a Dosage Rate - Piperacillin - completed with reason code

{
  "resourceType" : "MedicationRequest",
  "id" : "medrx0319",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: MedicationRequest</b><a name=\"medrx0319\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource MedicationRequest &quot;medrx0319&quot; </p></div><p><b>identifier</b>: id: 12345689 (use: OFFICIAL)</p><p><b>status</b>: completed</p><p><b>intent</b>: order</p><h3>Medications</h3><table class=\"grid\"><tr><td>-</td><td><b>Reference</b></td></tr><tr><td>*</td><td><a name=\"med0302\"> </a><blockquote><p/><p><a name=\"med0302\"> </a></p><p><b>code</b>: Zosyn (piperacillin/tazobactam) 4.5gm injection <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/4.0.0/CodeSystem-v3-ndc.html\">National drug codes</a>#0206-8862-02)</span></p></blockquote></td></tr></table><p><b>subject</b>: <a href=\"patient-example-a.html\">Patient/pat1: Donald Duck</a> &quot;Donald DUCK&quot;</p><p><b>authoredOn</b>: 2015-01-15</p><p><b>requester</b>: <a href=\"practitioner-example-f007-sh.html\">Practitioner/f007: Patrick Pump</a> &quot;Simone HEPS&quot;</p><h3>Reasons</h3><table class=\"grid\"><tr><td>-</td><td><b>Concept</b></td></tr><tr><td>*</td><td>Community acquired pneumonia (disorder) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#385093006)</span></td></tr></table><blockquote><p><b>dose</b></p><blockquote><p><b>dosageInstruction</b></p><p><b>sequence</b>: 1</p><p><b>text</b>: 4.5 grams in D5W 250 ml. IV every 6 hours.Infuse over 30 min at 8L/min </p><p><b>timing</b>: Once per 6 hours</p><p><b>route</b>: Intravenous route (qualifier value) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#47625008)</span></p></blockquote></blockquote></div>"
  },
  "contained" : [{
    "resourceType" : "Medication",
    "id" : "med0302",
    "code" : {
      "coding" : [{
        "system" : "http://hl7.org/fhir/sid/ndc",
        "code" : "0206-8862-02",
        "display" : "Zosyn (piperacillin/tazobactam) 4.5gm injection"
      }]
    }
  }],
  "identifier" : [{
    "use" : "official",
    "system" : "http://www.bmc.nl/portal/prescriptions",
    "value" : "12345689"
  }],
  "status" : "completed",
  "intent" : "order",
  "medication" : {
    "reference" : {
      "reference" : "#med0302",
      "display" : "Piperacillin/Tazobactam 4.5gm"
    }
  },
  "subject" : {
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    "display" : "Donald Duck"
  },
  "authoredOn" : "2015-01-15",
  "requester" : {
    "reference" : "Practitioner/f007",
    "display" : "Patrick Pump"
  },
  "reason" : [{
    "concept" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "385093006",
        "display" : "Community acquired pneumonia (disorder)"
      }]
    }
  }],
  "dose" : {
    "dosageInstruction" : [{
      "sequence" : 1,
      "text" : "4.5 grams in D5W 250 ml. IV every 6 hours.Infuse over 30 min at 8L/min ",
      "timing" : {
        "repeat" : {
          "frequency" : 1,
          "period" : 6,
          "periodUnit" : "h"
        }
      },
      "route" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "47625008",
          "display" : "Intravenous route (qualifier value)"
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      },
      "doseAndRate" : [{
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            "system" : "http://terminology.hl7.org/CodeSystem/dose-rate-type",
            "code" : "ordered",
            "display" : "Ordered"
          }]
        },
        "doseQuantity" : {
          "value" : 4.5,
          "unit" : "g",
          "system" : "http://unitsofmeasure.org",
          "code" : "g"
        },
        "rateQuantity" : {
          "value" : 50,
          "system" : "http://unitsofmeasure.org",
          "code" : "ml/h"
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      }]
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}