{
  "description": "The US Core DocumentReference Type Value Set includes all LOINC  values whose SCALE is DOC in the LOINC database and the HL7 v3 Code System NullFlavor concept 'unknown'",
  "compose": {
    "include": [ {
      "system": "http://terminology.hl7.org/CodeSystem/v3-NullFlavor",
      "concept": [ {
        "code": "UNK",
        "display": "unknown"
      } ]
    }, {
      "filter": [ {
        "op": "=",
        "value": "DOC",
        "property": "SCALE_TYP"
      } ],
      "system": "http://loinc.org"
    } ]
  },
  "_filename": "ValueSet-us-core-documentreference-type.json",
  "package_name": "hl7.fhir.us.core",
  "date": "2019-05-21",
  "publisher": "HL7 International - US Realm Steering Committee",
  "jurisdiction": [ {
    "coding": [ {
      "code": "US",
      "system": "urn:iso:std:iso:3166"
    } ]
  } ],
  "name": "USCoreDocumentReferenceType",
  "copyright": "This material contains content from LOINC (http://loinc.org). LOINC is copyright © 1995-2020, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license. LOINC® is a registered United States trademark of Regenstrief Institute, Inc",
  "type": null,
  "experimental": null,
  "resourceType": "ValueSet",
  "title": "US Core DocumentReference Type",
  "package_version": "4.0.0",
  "status": "active",
  "id": "2ccbea45-7c9b-46cc-90c2-85ec84feac0f",
  "kind": null,
  "url": "http://hl7.org/fhir/us/core/ValueSet/us-core-documentreference-type",
  "version": "4.0.0",
  "contact": [ {
    "name": "HL7 International - US Realm Steering Committee",
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/usrealm/index.cfm",
      "system": "url"
    } ]
  } ]
}