<status value="active"/> <experimental value="false"/> <date value="2021-01-05T10:01:24+11:00"/> <publisher value="HL7 (FHIR Project)"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> <telecom> <system value="email"/> <value value="fhir@lists.hl7.org"/> </telecom> </contact> <description value="How a type relates to its baseDefinition."/> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction> <caseSensitive value="true"/> <valueSet value="http://hl7.org/fhir/ValueSet/type-derivation-rule"/> <content value="complete"/> <concept> <code value="specialization"/> <display value="Specialization"/> <definition value="This definition defines a new type that adds additional elements and optionally additional rules to the base type."/> </concept> <concept> <code value="constraint"/> <display value="Constraint"/> <definition value="This definition adds additional rules to an existing concrete type."/> </concept> </CodeSystem>

Generated Narrative: CodeSystem type-derivation-rule

This case-sensitive code system http://hl7.org/fhir/type-derivation-rule defines the following codes:

Code	Display	Definition
specialization	Specialization	This definition defines a new type that adds additional elements and optionally additional rules to the base type.
constraint	Constraint	This definition adds additional rules to an existing concrete type.