Release 5 Draft Ballot

This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions


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

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

Definition for Code System MatchGrade

  "resourceType" : "CodeSystem",
  "id" : "match-grade",
  "meta" : {
    "lastUpdated" : "2022-05-21T02:20:14.755+00:00",
    "profile" : [""]
  "text" : {
    "status" : "generated",
    "div" : "<div>!-- Snipped for Brevity --></div>"
  "extension" : [{
    "url" : "",
    "valueCode" : "fhir"
  "url" : "",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.1.971"
  "version" : "4.6.0",
  "name" : "MatchGrade",
  "caseSensitive" : true,
  "content" : "complete",
  "concept" : [{
    "code" : "certain",
    "display" : "Certain Match",
    "definition" : "This record meets the matching criteria to be automatically considered as a full match."
    "code" : "probable",
    "display" : "Probable Match",
    "definition" : "This record is a close match, but not a certain match. Additional review (e.g. by a human) may be required before using this as a match."
    "code" : "possible",
    "display" : "Possible Match",
    "definition" : "This record may be a matching one. Additional review (e.g. by a human) SHOULD be performed before using this as a match."
    "code" : "certainly-not",
    "display" : "Certainly Not a Match",
    "definition" : "This record is known not to be a match. Note that usually non-matching records are not returned, but in some cases records previously or likely considered as a match may specifically be negated by the matching engine."

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.