{"caseSensitive":true,"concept":[{"code":"specialization","definition":"This definition defines a new type that adds additional elements and optionally additional rules to the base type.","display":"Specialization"},{"code":"constraint","definition":"This definition adds additional rules to an existing concrete type.","display":"Constraint"}],"contact":[{"telecom":[{"system":"url","value":"http://hl7.org/fhir"},{"system":"email","value":"fhir@lists.hl7.org"}]}],"content":"complete","date":"2021-01-05T10:01:24+11:00","description":"How a type relates to its baseDefinition.","experimental":false,"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-wg","valueCode":"fhir"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status","valueCode":"normative"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm","valueInteger":5}],"id":"type-derivation-rule","identifier":[{"system":"urn:ietf:rfc:3986","value":"urn:oid:2.16.840.1.113883.4.642.4.674"},{"system":"urn:ietf:rfc:3986","use":"old","value":"urn:oid:2.16.840.1.113883.4.642.1.660"}],"jurisdiction":[{"coding":[{"code":"001","display":"World","system":"http://unstats.un.org/unsd/methods/m49/m49.htm"}]}],"meta":{"lastUpdated":"2026-03-16T22:59:53.445+00:00"},"name":"TypeDerivationRule","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 type-derivation-rule</b></p><a name=\"type-derivation-rule\"> </a><a name=\"hctype-derivation-rule\"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/type-derivation-rule</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\">specialization<a name=\"type-derivation-rule-specialization\"> </a></td><td>Specialization</td><td>This definition defines a new type that adds additional elements and optionally additional rules to the base type.</td></tr><tr><td style=\"white-space:nowrap\">constraint<a name=\"type-derivation-rule-constraint\"> </a></td><td>Constraint</td><td>This definition adds additional rules to an existing concrete type.</td></tr></table></div>","status":"generated"},"title":"Type Derivation Rule","url":"http://hl7.org/fhir/type-derivation-rule","valueSet":"http://hl7.org/fhir/ValueSet/type-derivation-rule","version":"6.0.0-ballot4"}