Order with Dosage with a Pre-Condition - Alprazolam - dosageInstructions includes boundsPeriod with periodMax and asNeededCodeableConcept

{
  "resourceType" : "MedicationRequest",
  "id" : "medrx0305",
  "contained" : [{
    "resourceType" : "Medication",
    "id" : "med0314",
    "code" : {
      "coding" : [{
        "system" : "http://www.nlm.nih.gov/research/umls/rxnorm",
        "code" : "308047",
        "display" : "alprazolam 0.25 MG Oral Tablet"
      }]
    }
  }],
  "identifier" : [{
    "use" : "official",
    "system" : "http://www.bmc.nl/portal/prescriptions",
    "value" : "12345689"
  }],
  "status" : "completed",
  "intent" : "order",
  "medication" : {
    "reference" : {
      "reference" : "#med0314"
    }
  },
  "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"
  },
  "dosageInstruction" : [{
    "sequence" : 1,
    "text" : "0.25mg PO every 6-12 hours as needed for menses from Jan 15-20, 2015.  Do not exceed more than 4mg per day",
    "additionalInstruction" : [{
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "418914006",
        "display" : "Warning. May cause drowsiness. If affected do not drive or operate machinery. Avoid alcoholic drink (qualifier value)"
      }]
    }],
    "timing" : {
      "repeat" : {
        "boundsPeriod" : {
          "start" : "2015-01-15",
          "end" : "2015-01-20"
        },
        "frequency" : 1,
        "period" : 6,
        "periodMax" : 12,
        "periodUnit" : "h"
      }
    },
    "asNeededFor" : [{
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "266599000",
        "display" : "Dysmenorrhea (disorder)"
      }]
    }],
    "route" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "26643006",
        "display" : "Oral Route"
      }]
    },
    "doseAndRate" : [{
      "type" : {
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/dose-rate-type",
          "code" : "ordered",
          "display" : "Ordered"
        }]
      },
      "doseQuantity" : {
        "value" : 1,
        "unit" : "TAB",
        "system" : "http://terminology.hl7.org/CodeSystem/v3-orderableDrugForm",
        "code" : "TAB"
      }
    }],
    "maxDosePerAdministration" : {
      "value" : 4,
      "unit" : "mg",
      "system" : "http://unitsofmeasure.org",
      "code" : "mg"
    }
  }],
  "dispenseRequest" : {
    "validityPeriod" : {
      "start" : "2015-01-15",
      "end" : "2016-01-15"
    },
    "numberOfRepeatsAllowed" : 1,
    "quantity" : {
      "value" : 30,
      "unit" : "TAB",
      "system" : "http://terminology.hl7.org/CodeSystem/v3-orderableDrugForm",
      "code" : "TAB"
    },
    "expectedSupplyDuration" : {
      "value" : 10,
      "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"
      }]
    }
  }
}