{
  "resourceType": "StructureDefinition",
  "id": "us-core-observationresults",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" style=\"border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\"><tr style=\"border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\"><th style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://build.fhir.org/formats.html#table\" title=\"The logical name of the element\">Name</a></th><th style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://build.fhir.org/formats.html#table\" title=\"Information about the use of the element\">Flags</a></th><th style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://build.fhir.org/formats.html#table\" title=\"Minimum and Maximum # of times the the element can appear in the instance\">Card.</a></th><th style=\"width: 100px\" class=\"hierarchy\"><a href=\"http://build.fhir.org/formats.html#table\" title=\"Reference to the type of the element\">Type</a></th><th style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://build.fhir.org/formats.html#table\" title=\"Additional information about the element\">Description &amp; Constraints</a><span style=\"float: right\"><a href=\"http://build.fhir.org/formats.html#table\" title=\"Legend for this format\"><img src=\"http://build.fhir.org/help16.png\" alt=\"doco\" style=\"background-color: inherit\"/></a></span></th></tr><tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white;\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-us-core-observationresults-definitions.html#Observation\" title=\"The US Core Observation Result Profile is based upon the core FHIR Observation Resource and created to meet the 2015 Edition Common Clinical Data Set 'Laboratory test(s) and Laboratory value(s)/result(s)' requirements.\">Observation</a><a name=\"Observation\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"padding: 3px\" title=\"This element has or is affected by some invariants\">I</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.4\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.4\">*</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">US Core Result Observation<br/><span style=\"font-weight:bold\">us-core-2: </span>If there is no component or related element then either a value[x] or a data absent reason must be present</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white;\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-us-core-observationresults-definitions.html#Observation.status\">status</a><a name=\"Observation.status\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"padding: 3px; color: white; background-color: red\" title=\"This element must be supported\">S</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.4\">1</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.4\">1</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#code\">code</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"font-weight:bold\">Binding: </span><a href=\"http://build.fhir.org/valueset-observation-status.html\">ObservationStatus</a> (<a href=\"http://build.fhir.org/terminologies.html#required\" title=\"To be conformant, the concept in this element SHALL be from the specified value set\">required</a>)</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white;\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-us-core-observationresults-definitions.html#Observation.category\">category</a><a name=\"Observation.category\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"padding: 3px; color: white; background-color: red\" title=\"This element must be supported\">S</span><span style=\"padding: 3px\" title=\"This element has or is affected by some invariants\">I</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..*</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#CodeableConcept\">CodeableConcept</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"font-weight:bold\">us-core-5: </span>Must have a category of 'laboratory' and a code system 'http://hl7.org/fhir/observation-category'<br/></td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white;\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-us-core-observationresults-definitions.html#Observation.code\" title=\"The test that was performed.  A LOINC **SHALL** be used if the concept is present in LOINC.\">code</a><a name=\"Observation.code\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"padding: 3px; color: white; background-color: red\" title=\"This element must be supported\">S</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.4\">1</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.4\">1</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#CodeableConcept\">CodeableConcept</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Laboratory Test Name<br/><span style=\"font-weight:bold\">Binding: </span><a href=\"http://build.fhir.org/valueset-observation-codes.html\">LOINC Codes</a> (<a href=\"http://build.fhir.org/terminologies.html#extensible\" title=\"To be conformant, the concept in this element SHALL be from the specified value set if any of the codes within the value set can apply to the concept being communicated.  If the value set does not cover the concept (based on human review), alternate codings (or, data type allowing, text) may be included instead.\">extensible</a>)</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white;\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_reference.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Reference to another Resource\" class=\"hierarchy\"/> <a href=\"StructureDefinition-us-core-observationresults-definitions.html#Observation.subject\">subject</a><a name=\"Observation.subject\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"padding: 3px; color: white; background-color: red\" title=\"This element must be supported\">S</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://build.fhir.org/references.html\">Reference</a>(<a href=\"StructureDefinition-us-core-patient.html\">US Core Patient Profile</a>)</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white;\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_choice.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Choice of Types\" class=\"hierarchy\"/> <a href=\"StructureDefinition-us-core-observationresults-definitions.html#Observation.effective[x]\" title=\"For lab tests this is the specimen collection date.  For Ask at Order Entry Questions (AOE)'s this is the date the question was asked.\">effective[x]</a><a name=\"Observation.effective_x_\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"padding: 3px; color: white; background-color: red\" title=\"This element must be supported\">S</span><span style=\"padding: 3px\" title=\"This element has or is affected by some invariants\">I</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.4\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.4\">1</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#dateTime\">dateTime</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#Period\">Period</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"font-weight:bold\">us-core-1: </span>Datetime must be at least to day.</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white;\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-us-core-observationresults-definitions.html#Observation.value[x]\" title=\"The Laboratory result value.  If a coded value,  the valueCodeableConcept.code **SHOULD**  be selected from [SNOMED CT](http://hl7.org/fhir/ValueSet/uslab-obs-codedresults).  If a numeric value, valueQuantity.code **SHALL** be selected from [UCUM](http://unitsofmeasure.org).  A FHIR [UCUM Codes value set](http://hl7.org/fhir/STU3/valueset-ucum-units.html) that defines all UCUM codes is in the FHIR specification.\">value[x]</a><a name=\"Observation.value_x_\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"padding: 3px; color: white; background-color: red\" title=\"This element must be supported\">S</span><span style=\"padding: 3px\" title=\"This element has or is affected by some invariants\">I</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.4\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.4\">1</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#Quantity\">Quantity</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#CodeableConcept\">CodeableConcept</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#string\">string</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#boolean\">boolean</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#Range\">Range</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#Ratio\">Ratio</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#SampledData\">SampledData</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#Attachment\">Attachment</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#time\">time</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#dateTime\">dateTime</a><span style=\"opacity: 0.4\">, </span><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#Period\">Period</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Result Value<br/><span style=\"font-weight:bold\">us-core-4: </span>SHOULD use Snomed CT for coded Results<br/><span style=\"font-weight:bold\">us-core-3: </span>SHALL use UCUM for coded quantity units.</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white;\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-us-core-observationresults-definitions.html#Observation.dataAbsentReason\">dataAbsentReason</a><a name=\"Observation.dataAbsentReason\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"padding: 3px; color: white; background-color: red\" title=\"This element must be supported\">S</span><span style=\"padding: 3px\" title=\"This element has or is affected by some invariants\">I</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.4\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.4\">1</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.4\" href=\"http://build.fhir.org/datatypes.html#CodeableConcept\">CodeableConcept</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"font-weight:bold\">Binding: </span><a href=\"http://build.fhir.org/valueset-observation-valueabsentreason.html\">Observation Value Absent Reason</a> (<a href=\"http://build.fhir.org/terminologies.html#extensible\" title=\"To be conformant, the concept in this element SHALL be from the specified value set if any of the codes within the value set can apply to the concept being communicated.  If the value set does not cover the concept (based on human review), alternate codings (or, data type allowing, text) may be included instead.\">extensible</a>)</td></tr>\r\n<tr><td colspan=\"5\" class=\"hierarchy\"><br/><a href=\"http://build.fhir.org/formats.html#table\" title=\"Legend for this format\"><img src=\"http://build.fhir.org/help16.png\" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"
  },
  "url": "http://hl7.org/fhir/us/core/StructureDefinition/us-core-observationresults",
  "version": "1.0.0",
  "name": "US  Core Results Profile",
  "status": "draft",
  "date": "2016-08-01",
  "publisher": "HL7 US Realm Steering Committee",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://www.healthit.gov"
        }
      ]
    }
  ],
  "fhirVersion": "3.1.0",
  "mapping": [
    {
      "identity": "argonaut-dq-dstu2",
      "uri": "http://unknown.org/Argonaut DQ DSTU2",
      "name": "Argonaut DQ DSTU2"
    },
    {
      "identity": "workflow",
      "uri": "http://hl7.org/fhir/workflow",
      "name": "Workflow Mapping"
    },
    {
      "identity": "sct-concept",
      "uri": "http://snomed.info/conceptdomain",
      "name": "SNOMED CT Concept Domain Binding"
    },
    {
      "identity": "v2",
      "uri": "http://hl7.org/v2",
      "name": "HL7 v2 Mapping"
    },
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    },
    {
      "identity": "w5",
      "uri": "http://hl7.org/fhir/w5",
      "name": "W5 Mapping"
    },
    {
      "identity": "sct-attr",
      "uri": "http://snomed.info/sct",
      "name": "SNOMED CT Attribute Binding"
    }
  ],
  "kind": "resource",
  "abstract": false,
  "type": "Observation",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Observation",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Observation",
        "path": "Observation",
        "short": "US Core Result Observation",
        "definition": "The US Core Observation Result Profile is based upon the core FHIR Observation Resource and created to meet the 2015 Edition Common Clinical Data Set 'Laboratory test(s) and Laboratory value(s)/result(s)' requirements.",
        "alias": [
          "Obs"
        ],
        "constraint": [
          {
            "key": "us-core-2",
            "severity": "error",
            "human": "If there is no component or related element then either a value[x] or a data absent reason must be present",
            "expression": "(component.empty() and related.empty()) implies (dataAbsentReason or value)",
            "xpath": "exists(f:component) or exists(f:related) or exists(f:*[starts-with(local-name(.), 'value)]) or exists(f:dataAbsentReason)"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "mapping": [
          {
            "identity": "argonaut-dq-dstu2",
            "map": "Observation"
          }
        ]
      },
      {
        "id": "Observation.status",
        "path": "Observation.status",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "code"
          }
        ],
        "mustSupport": true,
        "isModifier": false,
        "binding": {
          "strength": "required",
          "valueSetReference": {
            "reference": "http://hl7.org/fhir/ValueSet/observation-status"
          }
        },
        "mapping": [
          {
            "identity": "argonaut-dq-dstu2",
            "map": "Observation.status"
          }
        ]
      },
      {
        "id": "Observation.category",
        "path": "Observation.category",
        "min": 1,
        "max": "*",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "constraint": [
          {
            "key": "us-core-5",
            "severity": "error",
            "human": "Must have a category of 'laboratory' and a code system 'http://hl7.org/fhir/observation-category'",
            "expression": "where(coding.system='http://hl7.org/fhir/observation-category' and coding.code='laboratory').exists()",
            "xpath": "exists(f:coding/code[@value='laboratory']) and exists(f:coding/system[@value='http://hl7.org/fhir/observation-category'])"
          }
        ],
        "mustSupport": true,
        "isModifier": false,
        "mapping": [
          {
            "identity": "argonaut-dq-dstu2",
            "map": "Observation.category"
          }
        ]
      },
      {
        "id": "Observation.code",
        "path": "Observation.code",
        "short": "Laboratory Test Name",
        "definition": "The test that was performed.  A LOINC **SHALL** be used if the concept is present in LOINC.",
        "comment": "The typical patterns for codes are:  1)  a LOINC code either as a  translation from a \"local\" code or as a primary code, or 2)  a local code only if no suitable LOINC exists,  or 3)  both the local and the LOINC translation.   Systems SHALL be capable of sending the local code if one exists.  When using LOINC , Use either the SHORTNAME or LONG_COMMON_NAME field for the display.",
        "alias": [
          "Test Name",
          "Observation Identifer"
        ],
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mustSupport": true,
        "isModifier": false,
        "binding": {
          "strength": "extensible",
          "description": "LOINC codes",
          "valueSetReference": {
            "reference": "http://hl7.org/fhir/ValueSet/observation-codes"
          }
        },
        "mapping": [
          {
            "identity": "argonaut-dq-dstu2",
            "map": "Observation.code"
          }
        ]
      },
      {
        "id": "Observation.subject",
        "path": "Observation.subject",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Reference",
            "targetProfile": "http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient"
          }
        ],
        "mustSupport": true,
        "isModifier": false,
        "mapping": [
          {
            "identity": "argonaut-dq-dstu2",
            "map": "Observation.subject"
          }
        ]
      },
      {
        "id": "Observation.effective[x]",
        "path": "Observation.effective[x]",
        "definition": "For lab tests this is the specimen collection date.  For Ask at Order Entry Questions (AOE)'s this is the date the question was asked.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "dateTime"
          },
          {
            "code": "Period"
          }
        ],
        "constraint": [
          {
            "key": "us-core-1",
            "severity": "error",
            "human": "Datetime must be at least to day.",
            "expression": "($this as dateTime).toString().length() >= 8",
            "xpath": "f:matches(effectiveDateTime,/\\d{4}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d([+-][0-2]\\d:[0-5]\\d|Z)/)"
          }
        ],
        "mustSupport": true,
        "isModifier": false,
        "mapping": [
          {
            "identity": "argonaut-dq-dstu2",
            "map": "Observation.effective[x]"
          }
        ]
      },
      {
        "id": "Observation.value[x]",
        "path": "Observation.value[x]",
        "short": "Result Value",
        "definition": "The Laboratory result value.  If a coded value,  the valueCodeableConcept.code **SHOULD**  be selected from [SNOMED CT](http://hl7.org/fhir/ValueSet/uslab-obs-codedresults).  If a numeric value, valueQuantity.code **SHALL** be selected from [UCUM](http://unitsofmeasure.org).  A FHIR [UCUM Codes value set](http://hl7.org/fhir/STU3/valueset-ucum-units.html) that defines all UCUM codes is in the FHIR specification.",
        "min": 0,
        "max": "1",
        "constraint": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice",
                "valueBoolean": true
              }
            ],
            "key": "us-core-4",
            "severity": "warning",
            "human": "SHOULD use Snomed CT for coded Results",
            "expression": "valueCodeableConcept.coding.system.empty() or valueCodeableConcept.coding.system = 'http://snomed.info/sct'",
            "xpath": "not(exists(f:valueCodeableConcept/f:coding/f:system) ) or  f:valueCodeableConcept/f:coding/f:system[@value='http://snomed.info/sct']"
          },
          {
            "key": "us-core-3",
            "severity": "error",
            "human": "SHALL use UCUM for coded quantity units.",
            "expression": "valueQuantity.system.empty() or valueQuantity.system = 'http://unitsofmeasure.org'",
            "xpath": "not(exists(f:valueQuantity/f:system) ) or  f:valueQuantity/f:system[@value='http://unitsofmeasure.org']"
          }
        ],
        "mustSupport": true,
        "isModifier": false,
        "mapping": [
          {
            "identity": "argonaut-dq-dstu2",
            "map": "Observation.value[x]"
          }
        ]
      },
      {
        "id": "Observation.dataAbsentReason",
        "path": "Observation.dataAbsentReason",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mustSupport": true,
        "isModifier": false,
        "binding": {
          "strength": "extensible",
          "valueSetReference": {
            "reference": "http://hl7.org/fhir/ValueSet/observation-valueabsentreason"
          }
        },
        "mapping": [
          {
            "identity": "argonaut-dq-dstu2",
            "map": "Observation.dataAbsentReason"
          }
        ]
      }
    ]
  }
}