Evidence Variable Constraint
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http://terminology.hl7.org/CodeSystem/evidence-variable-constraintCopied!
Version1.0.0Copied!
Date2026-05-04T16:55:11+11:00PublisherHL7 (FHIR Project)DescriptionA rule or other expectation for data values.
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Generated Narrative: CodeSystem evidence-variable-constraint
Profile: Shareable CodeSystem
This case-sensitive code system http://terminology.hl7.org/CodeSystem/evidence-variable-constraint defines the following codes:
{
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"date" : "2026-05-04T16:55:11+11:00",
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"content" : "complete",
"property" : null,
"name" : "EvidenceVariableConstraint",
"experimental" : false,
"resourceType" : "CodeSystem",
"title" : "Evidence Variable Constraint",
"extension" : [ {
"valueCode" : "cds",
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"
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"valueInteger" : 1
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"url" : "http://health-samurai.io/extensions/excised-data"
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"status" : "active",
"id" : "evidence-variable-constraint",
"valueSet" : "http://terminology.hl7.org/ValueSet/evidence-variable-constraint",
"url" : "http://terminology.hl7.org/CodeSystem/evidence-variable-constraint",
"caseSensitive" : true,
"version" : "1.0.0",
"contact" : [ {
"telecom" : [ {
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"value" : "http://hl7.org/fhir"
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"value" : "fhir@lists.hl7.org"
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"text" : {
"div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem evidence-variable-constraint</b></p><a name=\"evidence-variable-constraint\"> </a><a name=\"hcevidence-variable-constraint\"> </a><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\"/><p style=\"margin-bottom: 0px\">Profile: <a href=\"http://hl7.org/fhir/R5/shareablecodesystem.html\">Shareable CodeSystem</a></p></div><p>This case-sensitive code system <code>http://terminology.hl7.org/CodeSystem/evidence-variable-constraint</code> defines the following codes:</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\">alphanumeric-only<a name=\"evidence-variable-constraint-alphanumeric-only\"> </a></td><td>Alphanumeric Characters Only</td><td>String values that are restricted to only numbers and letters [A-Za-z0-9].</td></tr><tr><td style=\"white-space:nowrap\">alphanumeric-space-only<a name=\"evidence-variable-constraint-alphanumeric-space-only\"> </a></td><td>Alphanumeric and Space Characters Only</td><td>String values that are restricted to only numbers, letters, and spaces [A-Za-z0-9\\s].</td></tr><tr><td style=\"white-space:nowrap\">range-zero-to-one<a name=\"evidence-variable-constraint-range-zero-to-one\"> </a></td><td>Range Zero to One</td><td>Numeric value between 0 and 1, inclusive.</td></tr></table></div>",
"status" : "generated"
}
}