eHealth Infrastructure (v2019.6.1) 

{
  "resourceType" : "CodeSystem",
  "id" : "ehealth-derived-quality-base",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><h2>DerivedQualityBase</h2><div><p>For use in ValueSet defining derived qualities, for instance, qualities based on decision rules.</p>\n</div><p>This code system http://ehealth.sundhed.dk/cs/derived-quality-base defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style=\"white-space:nowrap\">Unknown<a name=\"ehealth-derived-quality-base-Unknown\"> </a></td><td>Unknown</td><td>Unknown quality (Unlikely to be adequate where one is expected)</td></tr><tr><td style=\"white-space:nowrap\">None<a name=\"ehealth-derived-quality-base-None\"> </a></td><td>None</td><td>Quality value where no derivation rule logic and/or values are expected</td></tr><tr><td style=\"white-space:nowrap\">DerivationError<a name=\"ehealth-derived-quality-base-DerivationError\"> </a></td><td>Error in deriving the quality</td><td>Quality value could not be derived due to insufficient input, unknown/unavailable logic, or other error.</td></tr></table></div>"
  },
  "url" : "http://ehealth.sundhed.dk/cs/derived-quality-base",
  "version" : "2019.6.1",
  "name" : "DerivedQualityBase",
  "status" : "active",
  "experimental" : false,
  "date" : "2019-01-29T00:00:00+00:00",
  "publisher" : "ehealth.sundhed.dk",
  "contact" : [
    {
      "telecom" : [
        {
          "system" : "url",
          "value" : "https://ehealth.sundhed.dk/terminology"
        }
      ]
    }
  ],
  "description" : "For use in ValueSet defining derived qualities, for instance, qualities based on decision rules.",
  "caseSensitive" : true,
  "content" : "complete",
  "concept" : [
    {
      "code" : "Unknown",
      "display" : "Unknown",
      "definition" : "Unknown quality (Unlikely to be adequate where one is expected)"
    },
    {
      "code" : "None",
      "display" : "None",
      "definition" : "Quality value where no derivation rule logic and/or values are expected"
    },
    {
      "code" : "DerivationError",
      "display" : "Error in deriving the quality",
      "definition" : "Quality value could not be derived due to insufficient input, unknown/unavailable logic, or other error."
    }
  ]
}