{
  "description": "Code indicating how the current observation compares to previous observations - e.g., no change, rising trend, decreasing trend, etc...",
  "compose": {
    "include": [ {
      "system": "http://hl7.org/fhir/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"
      } ]
    } ]
  },
  "_filename": "ValueSet-qicore-observation-delta.json",
  "package_name": "hl7.fhir.us.qicore",
  "date": "2015-02-09",
  "publisher": "HL7 Clinical Quality Information (CQI) Work Group",
  "extensible": true,
  "name": "QICore Observation Delta Value Set Definition",
  "type": null,
  "experimental": null,
  "resourceType": "ValueSet",
  "title": null,
  "package_version": "1.6.0",
  "status": "draft",
  "id": "d5352c4d-5639-4a1d-918d-ad3aa318f78e",
  "kind": null,
  "url": "http://hl7.org/fhir/qicore/ValueSet/qicore-observation-delta",
  "version": "0.1.0",
  "contact": [ {
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/cqi",
      "system": "other"
    } ]
  } ]
}