Compound Numeric Blood Pressure Measurement with Multiple Codings

{
  "resourceType" : "Observation",
  "id" : "compound-numeric-blood-pressure",
  "meta" : {
    "profile" : ["http://hl7.org/fhir/StructureDefinition/vitalsigns",
    "http://hl7.org/fhir/StructureDefinition/bp"]
  },
  "contained" : [{
    "resourceType" : "Patient",
    "id" : "patientExample-1"
  },
  {
    "resourceType" : "Device",
    "id" : "phd-711000FEFF5F49B0.B0495F001071"
  }],
  "status" : "final",
  "category" : [{
    "coding" : [{
      "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
      "code" : "vital-signs",
      "display" : "Vital Signs"
    }]
  }],
  "code" : {
    "coding" : [{
      "system" : "urn:iso:std:iso:11073:10101",
      "code" : "150020",
      "display" : "MDC_PRESS_BLD_NONINV"
    },
    {
      "system" : "http://snomed.info/sct",
      "code" : "75367002",
      "display" : "Blood pressure"
    },
    {
      "system" : "http://loinc.org",
      "code" : "85354-9",
      "display" : "Blood pressure panel with all children optional"
    }],
    "text" : "Blood pressure"
  },
  "subject" : {
    "reference" : "#patientExample-1"
  },
  "effectiveDateTime" : "2018-11-11T11:38:15-05:00",
  "performer" : [{
    "reference" : "#patientExample-1"
  }],
  "device" : {
    "reference" : "#phd-711000FEFF5F49B0.B0495F001071"
  },
  "component" : [{
    "code" : {
      "coding" : [{
        "system" : "urn:iso:std:iso:11073:10101",
        "code" : "150021",
        "display" : "MDC_PRESS_BLD_NONINV_SYS"
      },
      {
        "system" : "http://snomed.info/sct",
        "code" : "271649006",
        "display" : "Systolic blood pressure"
      },
      {
        "system" : "http://loinc.org",
        "code" : "8480-6",
        "display" : "Systolic blood pressure"
      }],
      "text" : "Systolic blood pressure"
    },
    "valueQuantity" : {
      "value" : 116,
      "unit" : "mm[Hg]",
      "system" : "http://unitsofmeasure.org",
      "code" : "mm[Hg]"
    }
  },
  {
    "code" : {
      "coding" : [{
        "system" : "urn:iso:std:iso:11073:10101",
        "code" : "150022",
        "display" : "MDC_PRESS_BLD_NONINV_DIA"
      },
      {
        "system" : "http://snomed.info/sct",
        "code" : "271650006",
        "display" : "Diastolic blood pressure"
      },
      {
        "system" : "http://loinc.org",
        "code" : "8462-4",
        "display" : "Diastolic blood pressure"
      }],
      "text" : "Diastolic blood pressure"
    },
    "valueQuantity" : {
      "value" : 71,
      "unit" : "mm[Hg]",
      "system" : "http://unitsofmeasure.org",
      "code" : "mm[Hg]"
    }
  },
  {
    "code" : {
      "coding" : [{
        "system" : "urn:iso:std:iso:11073:10101",
        "code" : "150023",
        "display" : "MDC_PRESS_BLD_NONINV_MEAN"
      }],
      "text" : "Mean blood pressure"
    },
    "valueQuantity" : {
      "value" : 86,
      "unit" : "mm[Hg]",
      "system" : "http://unitsofmeasure.org",
      "code" : "mm[Hg]"
    }
  }]
}