type: codesystemcodesystem: version-algorithm

Version Algorithm

Official URL: http://hl7.org/fhir/version-algorithm
Version: 6.0.0
Status: active
Name: VersionAlgorithm
Title: Version Algorithm
Publisher: HL7 (FHIR Project)
Description: Indicates the mechanism used to compare versions to determine which is more current.
Case Sensitive: true
Content: complete

Concepts

Code	Display	Definition
semver	SemVer	Uses the semantic versioning scheme as defined in semver.org.
integer	Integer	Versions are integers and ordered numerically
alpha	Alphabetical	Simple alphabetic sort on a case-insensitive and accent-insensitive basis. (Sorting of different cases or accented versions of a character is indeterminate)
date	Date	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.
natural	Natural	Sorted according to the algorithm defined here: naturalordersort.org
major-minor	Major/Minor	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.
sct-url	SNOMED-CT URL	Versions are expressed according to the SNOMED URL scheme. See the Versions topic for more details.
us-date	US Date	Versions are expressed as an US date format, i.e. MMDDYYYY (with or without separators).

CodeSystem XML

<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="version-algorithm"/>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="normative"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="1"/>
  </extension>
  <url value="http://hl7.org/fhir/version-algorithm"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.4.1989"/>
  </identifier>
  <version value="6.0.0"/>
  <name value="VersionAlgorithm"/>
  <title value="Version Algorithm"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2021-01-05T10:01:24+11:00"/>
  <publisher value="HL7 (FHIR Project)"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="fhir@lists.hl7.org"/>
    </telecom>
  </contact>
  <description value="Indicates the mechanism used to compare versions to determine which is more current."/>
  <caseSensitive value="true"/>
  <valueSet value="http://hl7.org/fhir/ValueSet/version-algorithm"/>
  <content value="complete"/>
  <concept>
    <code value="semver"/>
    <display value="SemVer"/>
    <definition value="Uses the semantic versioning scheme as defined in [semver.org](http://semver.org)."/>
  </concept>
  <concept>
    <code value="integer"/>
    <display value="Integer"/>
    <definition value="Versions are integers and ordered numerically"/>
  </concept>
  <concept>
    <code value="alpha"/>
    <display value="Alphabetical"/>
    <definition value="Simple alphabetic sort on a case-insensitive and accent-insensitive basis.  (Sorting of different cases or accented versions of a character is indeterminate)"/>
  </concept>
  <concept>
    <code value="date"/>
    <display value="Date"/>
    <definition value="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."/>
  </concept>
  <concept>
    <code value="natural"/>
    <display value="Natural"/>
    <definition value="Sorted according to the algorithm defined here: [naturalordersort.org](http://www.naturalordersort.org/)"/>
  </concept>
  <concept>
    <code value="major-minor"/>
    <display value="Major/Minor"/>
    <definition value="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."/>
  </concept>
  <concept>
    <code value="sct-url"/>
    <display value="SNOMED-CT URL"/>
    <definition value="Versions are expressed according to the SNOMED URL scheme. See the [Versions](https://terminology.hl7.org/SNOMEDCT.html#versions) topic for more details."/>
  </concept>
  <concept>
    <code value="us-date"/>
    <display value="US Date"/>
    <definition value="Versions are expressed as an US date format, i.e. MMDDYYYY (with or without separators)."/>
  </concept>
</CodeSystem>