Request using Medication Code for Inhaler - Proventil - on hold with dispenseRequest and substitution

{
  "resourceType" : "MedicationRequest",
  "id" : "medrx0326",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: MedicationRequest</b><a name=\"medrx0326\"> </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;medrx0326&quot; </p></div><p><b>identifier</b>: id:\u00a012345689\u00a0(use:\u00a0OFFICIAL)</p><p><b>status</b>: on-hold</p><p><b>intent</b>: order</p><h3>Medications</h3><table class=\"grid\"><tr><td style=\"display: none\">-</td><td><b>Concept</b></td></tr><tr><td style=\"display: none\">*</td><td>NDA020503 200 ACTUAT albuterol 0.09 MG/ACTUAT Metered Dose Inhaler [Proventil] <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/5.4.0/CodeSystem-v3-rxNorm.html\">RxNorm</a>#746763)</span></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><blockquote><p><b>dosageInstruction</b></p><p><b>sequence</b>: 1</p><p><b>text</b>: Use two sprays twice daily</p><p><b>additionalInstruction</b>: Shake Well <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> ()</span></p><p><b>timing</b>: 2 per 1 days</p><blockquote><p><b>doseAndRate</b></p></blockquote></blockquote><blockquote><p><b>dispenseRequest</b></p><p><b>validityPeriod</b>: 2015-01-15 --&gt; 2016-01-15</p><p><b>numberOfRepeatsAllowed</b>: 3</p><p><b>quantity</b>: 30 mL<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mL = 'mL')</span></p><h3>ExpectedSupplyDurations</h3><table class=\"grid\"><tr><td style=\"display: none\">-</td><td><b>Value</b></td><td><b>Unit</b></td><td><b>System</b></td><td><b>Code</b></td></tr><tr><td style=\"display: none\">*</td><td>30</td><td>days</td><td><a href=\"http://terminology.hl7.org/5.4.0/CodeSystem-v3-ucum.html\">Unified Code for Units of Measure (UCUM)</a></td><td>d</td></tr></table></blockquote><h3>Substitutions</h3><table class=\"grid\"><tr><td style=\"display: none\">-</td><td><b>Allowed[x]</b></td><td><b>Reason</b></td></tr><tr><td style=\"display: none\">*</td><td>true</td><td>formulary policy <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/5.4.0/CodeSystem-v3-ActReason.html\">ActReason</a>#FP)</span></td></tr></table></div>"
  },
  "identifier" : [{
    "use" : "official",
    "system" : "http://www.bmc.nl/portal/prescriptions",
    "value" : "12345689"
  }],
  "status" : "on-hold",
  "intent" : "order",
  "medication" : {
    "concept" : {
      "coding" : [{
        "system" : "http://www.nlm.nih.gov/research/umls/rxnorm",
        "code" : "746763",
        "display" : "NDA020503 200 ACTUAT albuterol 0.09 MG/ACTUAT Metered Dose Inhaler [Proventil]"
      }]
    }
  },
  "subject" : {
    "reference" : "Patient/pat1",
    "display" : "Donald Duck"
  },
  "authoredOn" : "2015-01-15",
  "requester" : {
    "reference" : "Practitioner/f007",
    "display" : "Patrick Pump"
  },
  "dosageInstruction" : [{
    "sequence" : 1,
    "text" : "Use two sprays twice daily",
    "additionalInstruction" : [{
      "text" : "Shake Well"
    }],
    "timing" : {
      "repeat" : {
        "frequency" : 2,
        "period" : 1,
        "periodUnit" : "d"
      }
    },
    "doseAndRate" : [{
      "type" : {
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/dose-rate-type",
          "code" : "ordered",
          "display" : "Ordered"
        }]
      },
      "doseQuantity" : {
        "value" : 1,
        "unit" : "ea",
        "system" : "http://terminology.hl7.org/CodeSystem/v3-orderableDrugForm",
        "code" : "ORINHL"
      }
    }]
  }],
  "dispenseRequest" : {
    "validityPeriod" : {
      "start" : "2015-01-15",
      "end" : "2016-01-15"
    },
    "numberOfRepeatsAllowed" : 3,
    "quantity" : {
      "value" : 30,
      "unit" : "mL",
      "system" : "http://unitsofmeasure.org",
      "code" : "mL"
    },
    "expectedSupplyDuration" : {
      "value" : 30,
      "unit" : "days",
      "system" : "http://unitsofmeasure.org",
      "code" : "d"
    }
  },
  "substitution" : {
    "allowedBoolean" : true,
    "reason" : {
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v3-ActReason",
        "code" : "FP",
        "display" : "formulary policy"
      }]
    }
  }
}