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Example CodeSystem/color-rgb (JSON)

FHIR Infrastructure Work GroupMaturity Level: N/AStandards Status: Informative

Raw JSON (canonical form + also see JSON Format Specification)

Definition for Code SystemColorRGB

  "resourceType" : "CodeSystem",
  "id" : "color-rgb",
  "meta" : {
    "lastUpdated" : "2024-04-12T18:40:09.078+00:00",
    "profile" : ["http://hl7.org/fhir/StructureDefinition/shareablecodesystem"]
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p>This case-insensitive code system <code>http://hl7.org/fhir/color-rgb</code> defines codes, but no codes are represented here</p></div>"
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "fhir"
  "url" : "http://hl7.org/fhir/color-rgb",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.4.2121"
  "version" : "6.0.0-cibuild",
  "name" : "ColorRGB",
  "title" : "RGB Values for Color",
  "status" : "active",
  "experimental" : false,
  "publisher" : "FHIR Infrastructure",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
  "description" : "RGB values for color. Valid codes are #RRGGBB where RR, GG, and BB are two letter hex codes, values 00..ff. codes are case insensitive. This code system does not define the 16million+ valid RGB codes (terminology servers will need code to support the RGB grammar).",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001",
      "display" : "World"
  "copyright" : "[Copyright](https://www.w3.org/Consortium/Legal/ipr-notice) ©2022 World Wide Web Consortium. All Rights Reserved. This work is distributed under the [W3C® Software and Document License](https://www.w3.org/Consortium/Legal/copyright-software) in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.",
  "caseSensitive" : false,
  "compositional" : true,
  "content" : "not-present"

Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.