{
  "resourceType": "DeviceRequest",
  "id": "right-lens",
  "identifier": [
    {
      "system": "http://www.happysight.com/prescription",
      "value": "15013R"
    }
  ],
  "groupIdentifier": {
    "system": "http://acme.org",
    "value": "15013"
  },
  "status": "completed",
  "intent": "original-order",
  "productCodeableConcept": {
    "coding": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/ex-visionprescriptionproduct",
        "code": "lens"
      }
    ]
  },
  "parameter": [
    {
      "code": {
        "coding": [
          {
            "system": "http://loinc.org",
            "code": "28826-6",
            "display": "Right glasses lens prescription Sphere far"
          }
        ],
        "text": "sphere, right lens"
      },
      "valueQuantity": {
        "value": -2.00,
        "unit": "Diopter",
        "system": "http://unitsofmeasure.org",
        "code": "[diop]"
      }
    },
    {
      "code": {
        "coding": [
          {
            "system": "http://loinc.org",
            "code": "28829-0",
            "display": "Right glasses lens prescription Prism base direction"
          }
        ],
        "text": "prisms, right lens"
      },
      "valueQuantity": {
        "value": -2.00,
        "unit": "Diopter",
        "system": "http://unitsofmeasure.org",
        "code": "[diop]"
      }
    },
    {
      "code": {
        "coding": [
          {
            "system": "http://loinc.org",
            "code": "28810-0",
            "display": "Right corrective lens Add 1 by Lensmeter"
          }
        ],
        "text": "add, right lens"
      },
      "valueQuantity": {
        "value": 2.00,
        "unit": "Diopter",
        "system": "http://unitsofmeasure.org",
        "code": "[diop]"
      }
    }
  ],
  "subject": {
    "reference": "Patient/example"
  },
  "occurrenceDateTime": "2014-06-15",
  "requester": {
    "reference": "Practitioner/example"
  },
  "meta": {
    "tag": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-ActReason",
        "code": "HTEST",
        "display": "test health data"
      }
    ]
  }
}