{"caseSensitive":true,"concept":[{"code":"alphanumeric-only","definition":"String values that are restricted to only numbers and letters [A-Za-z0-9].","display":"Alphanumeric Characters Only"},{"code":"alphanumeric-space-only","definition":"String values that are restricted to only numbers, letters, and spaces [A-Za-z0-9\\s].","display":"Alphanumeric and Space Characters Only"},{"code":"range-zero-to-one","definition":"Numeric value between 0 and 1, inclusive.","display":"Range Zero to One"}],"contact":[{"telecom":[{"system":"url","value":"http://hl7.org/fhir"},{"system":"email","value":"fhir@lists.hl7.org"}]}],"content":"complete","date":"2024-11-14T10:01:24+11:00","description":"A rule, such as a format or other expectation, for the data values.","experimental":false,"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-wg","valueCode":"cds"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status","valueCode":"informative"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm","valueInteger":1}],"id":"evidence-variable-constraint","jurisdiction":[{"coding":[{"code":"001","display":"World","system":"http://unstats.un.org/unsd/methods/m49/m49.htm"}]}],"meta":{"lastUpdated":"2026-03-31T18:55:04.283+00:00"},"name":"EvidenceVariableConstraint","publisher":"HL7 (FHIR Project)","resourceType":"CodeSystem","status":"active","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><p>This case-sensitive code system <code>http://hl7.org/fhir/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"},"title":"Evidence Variable Constraint","url":"http://hl7.org/fhir/evidence-variable-constraint","valueSet":"http://hl7.org/fhir/ValueSet/evidence-variable-constraint","version":"6.0.0-ballot4"}