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Example CodeSystem/comparison-operation (JSON)

Responsible Owner: Pharmacy Work GroupStandards Status: Informative

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

Definition for Code SystemComparisonOperationCS

{
  "resourceType" : "CodeSystem",
  "id" : "comparison-operation",
  "meta" : {
    "lastUpdated" : "2025-11-14T05:50:06.469+00:00"
  },
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem comparison-operation</b></p><a name=\"comparison-operation\"> </a><a name=\"hccomparison-operation\"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/CodeSystem/comparison-operation</code> defines the following codes in a Is-A hierarchy:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style=\"white-space:nowrap\">eq<a name=\"comparison-operation-eq\"> </a></td><td>Equals</td><td>the value for the parameter in the resource is equal to the provided value.</td></tr><tr><td style=\"white-space:nowrap\">ne<a name=\"comparison-operation-ne\"> </a></td><td>Not Equals</td><td>the value for the parameter in the resource is not equal to the provided value.</td></tr><tr><td style=\"white-space:nowrap\">in<a name=\"comparison-operation-in\"> </a></td><td>In</td><td>The value for the parameter in the resource is in the list of codes in the value (comma-separated, and subject to code system logic; the code may be a value set).</td></tr><tr><td style=\"white-space:nowrap\">nin<a name=\"comparison-operation-nin\"> </a></td><td>Not In</td><td>The value for the parameter in the resource is not in the list of codes in the value (comma-separated, and subject to code system logic; the code may be a value set).</td></tr><tr><td style=\"white-space:nowrap\">gt<a name=\"comparison-operation-gt\"> </a></td><td>Greater Than</td><td>the value for the parameter in the resource is greater than the provided value.</td></tr><tr><td style=\"white-space:nowrap\">lt<a name=\"comparison-operation-lt\"> </a></td><td>Less Than</td><td>the value for the parameter in the resource is less than the provided value.</td></tr><tr><td style=\"white-space:nowrap\">ge<a name=\"comparison-operation-ge\"> </a></td><td>Greater or Equals</td><td>the value for the parameter in the resource is greater or equal to the provided value.</td></tr><tr><td style=\"white-space:nowrap\">le<a name=\"comparison-operation-le\"> </a></td><td>Less of Equal</td><td>the value for the parameter in the resource is less or equal to the provided value.</td></tr><tr><td style=\"white-space:nowrap\">sa<a name=\"comparison-operation-sa\"> </a></td><td>Starts After</td><td>the value for the parameter in the resource starts after the provided value.</td></tr><tr><td style=\"white-space:nowrap\">eb<a name=\"comparison-operation-eb\"> </a></td><td>Ends Before</td><td>the value for the parameter in the resource ends before the provided value.</td></tr><tr><td style=\"white-space:nowrap\">ap<a name=\"comparison-operation-ap\"> </a></td><td>Approximately</td><td>the value for the parameter in the resource is approximately the same to the provided value.</td></tr></table></div>"
  },
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "normative"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "phx"
  }],
  "url" : "http://hl7.org/fhir/CodeSystem/comparison-operation",
  "version" : "6.0.0-ballot3",
  "name" : "ComparisonOperationCS",
  "title" : "Dose Limit Scope CodeSystem",
  "status" : "active",
  "experimental" : false,
  "publisher" : "HL7 International / Pharmacy",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/medication"
    }]
  }],
  "description" : "Additional Binding Purpose",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001"
    }]
  }],
  "caseSensitive" : true,
  "valueSet" : "http://hl7.org/fhir/ValueSet/comparison-operation",
  "hierarchyMeaning" : "is-a",
  "content" : "complete",
  "concept" : [{
    "code" : "eq",
    "display" : "Equals",
    "definition" : "the value for the parameter in the resource is equal to the provided value."
  },
  {
    "code" : "ne",
    "display" : "Not Equals",
    "definition" : "the value for the parameter in the resource is not equal to the provided value."
  },
  {
    "code" : "in",
    "display" : "In",
    "definition" : "The value for the parameter in the resource is in the list of codes in the value (comma-separated, and subject to code system logic; the code may be a value set)."
  },
  {
    "code" : "nin",
    "display" : "Not In",
    "definition" : "The value for the parameter in the resource is not in the list of codes in the value (comma-separated, and subject to code system logic; the code may be a value set)."
  },
  {
    "code" : "gt",
    "display" : "Greater Than",
    "definition" : "the value for the parameter in the resource is greater than the provided value."
  },
  {
    "code" : "lt",
    "display" : "Less Than",
    "definition" : "the value for the parameter in the resource is less than the provided value."
  },
  {
    "code" : "ge",
    "display" : "Greater or Equals",
    "definition" : "the value for the parameter in the resource is greater or equal to the provided value."
  },
  {
    "code" : "le",
    "display" : "Less of Equal",
    "definition" : "the value for the parameter in the resource is less or equal to the provided value."
  },
  {
    "code" : "sa",
    "display" : "Starts After",
    "definition" : "the value for the parameter in the resource starts after the provided value."
  },
  {
    "code" : "eb",
    "display" : "Ends Before",
    "definition" : "the value for the parameter in the resource ends before the provided value."
  },
  {
    "code" : "ap",
    "display" : "Approximately",
    "definition" : "the value for the parameter in the resource is approximately the same to the provided value."
  }]
}

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.