{
  "description": "Indicates the mechanism used to compare versions to determine which is more current.",
  "_filename": "CodeSystem-version-algorithm.json",
  "package_name": "hl7.fhir.r6.examples",
  "date": "2021-01-05T10:01:24+11:00",
  "meta": {
    "lastUpdated": "2025-12-18T07:07:42.170+11:00"
  },
  "publisher": "HL7 International / Clinical Decision Support",
  "jurisdiction": [ {
    "coding": [ {
      "code": "001",
      "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "display": "World"
    } ]
  } ],
  "content": "complete",
  "name": "VersionAlgorithm",
  "type": null,
  "experimental": "false",
  "resourceType": "CodeSystem",
  "title": "Version Algorithm",
  "package_version": "6.0.0-ballot4",
  "extension": [ {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode": "cds"
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode": "normative"
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger": 5
  } ],
  "status": "active",
  "id": "92fc97d0-667a-460f-bd43-35a48b058daa",
  "valueSet": "http://hl7.org/fhir/ValueSet/version-algorithm",
  "kind": null,
  "url": "http://hl7.org/fhir/version-algorithm",
  "identifier": [ {
    "value": "urn:oid:2.16.840.1.113883.4.642.4.1989",
    "system": "urn:ietf:rfc:3986"
  } ],
  "concept": [ {
    "code": "semver",
    "display": "SemVer",
    "definition": "Uses the semantic versioning scheme as defined in [semver.org](http://semver.org)."
  }, {
    "code": "integer",
    "display": "Integer",
    "definition": "Versions are integers and ordered numerically"
  }, {
    "code": "alpha",
    "display": "Alphabetical",
    "definition": "Simple alphabetic sort on a case-insensitive and accent-insensitive basis.  (Sorting of different cases or accented versions of a character is indeterminate)"
  }, {
    "code": "date",
    "display": "Date",
    "definition": "Versions are expressed as an ISO date/time syntax (including syntaxes with only portions of a date) in the general format of YYYY-MM-DD (with or without separators). Inclusion of the time portion is optional."
  }, {
    "code": "natural",
    "display": "Natural",
    "definition": "Sorted according to the algorithm defined here: [naturalordersort.org](http://www.naturalordersort.org/)"
  }, {
    "code": "major-minor",
    "display": "Major/Minor",
    "definition": "Similar to semver, but having only two components - i.e. a major and minor (integer) version number separated by a '.'.  The specific nature of what constitutes a major vs. minor increment is locally defined."
  }, {
    "code": "sct-url",
    "display": "SNOMED-CT URL",
    "definition": "Versions are expressed according to the SNOMED URL scheme. See the [Versions](https://terminology.hl7.org/SNOMEDCT.html#versions) topic for more details."
  }, {
    "code": "us-date",
    "display": "US Date",
    "definition": "Versions are expressed as an US date format, i.e. MMDDYYYY (with or without separators)."
  } ],
  "caseSensitive": true,
  "version": "6.0.0-ballot4",
  "contact": [ {
    "telecom": [ {
      "value": "http://hl7.org/fhir",
      "system": "url"
    }, {
      "value": "fhir@lists.hl7.org",
      "system": "email"
    } ]
  }, {
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/dss",
      "system": "url"
    } ]
  } ]
}