QI-Core Implementation Guide
4.1.0 - release

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## : QICore Observation Delta Value Set Definition - JSON Representation

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    {
      "resourceType" : "ValueSet",
      "id" : "qicore-observation-delta",
      "meta" : {
        "profile" : [
          "http://hl7.org/fhir/StructureDefinition/shareablevalueset"
        ]
      },
      "text" : {
        "status" : "generated",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><ul><li>Include these codes as defined in <a href=\"http://hl7.org/fhir/R4/v2/0078/index.html\"><code>http://terminology.hl7.org/CodeSystem/v2-0078</code></a><table class=\"none\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td></tr><tr><td><a href=\"http://hl7.org/fhir/R4/v2/0078/index.html#v2-0078-B\">B</a></td><td>Better-use when direction not relevant</td></tr><tr><td><a href=\"http://hl7.org/fhir/R4/v2/0078/index.html#v2-0078-D\">D</a></td><td>Significant change down</td></tr><tr><td><a href=\"http://hl7.org/fhir/R4/v2/0078/index.html#v2-0078-U\">U</a></td><td>Significant change up</td></tr><tr><td><a href=\"http://hl7.org/fhir/R4/v2/0078/index.html#v2-0078-W\">W</a></td><td>Worse-use when direction not relevant</td></tr></table></li></ul></div>"
      },
      "extension" : [
        {
          "url" : "http://hl7.org/fhir/StructureDefinition/valueset-extensible",
          "valueBoolean" : true
        }
      ],
      "url" : "http://hl7.org/fhir/us/qicore/ValueSet/qicore-observation-delta",
      "version" : "4.1.0",
      "name" : "QICoreObservationDelta",
      "title" : "QICore Observation Delta Value Set Definition",
      "status" : "draft",
      "experimental" : false,
      "date" : "2018-08-22",
      "publisher" : "http://www.hl7.org/Special/committees/cqi/index.cfm",
      "contact" : [
        {
          "name" : "Clinical Quality Information WG",
          "telecom" : [
            {
              "system" : "url",
              "value" : "http://www.hl7.org/Special/committees/cqi"
            }
          ]
        }
      ],
      "description" : "Code indicating how the current observation compares to previous observations - e.g., no change, rising trend, decreasing trend, etc...",
      "jurisdiction" : [
        {
          "coding" : [
            {
              "system" : "urn:iso:std:iso:3166",
              "code" : "US"
            }
          ]
        }
      ],
      "compose" : {
        "include" : [
          {
            "system" : "http://terminology.hl7.org/CodeSystem/v2-0078",
            "concept" : [
              {
                "code" : "B",
                "display" : "Better-use when direction not relevant"
              },
              {
                "code" : "D",
                "display" : "Significant change down"
              },
              {
                "code" : "U",
                "display" : "Significant change up"
              },
              {
                "code" : "W",
                "display" : "Worse-use when direction not relevant"
              }
            ]
          }
        ]
      }
    }