This page is part of the FHIR Specification (v4.0.1: R4 - Mixed Normative and STU) in it's permanent home (it will always be available at this URL). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4
FHIR Infrastructure Work Group | Maturity Level: N/A | Standards Status: Informative | Compartments: Not linked to any defined compartments |
Raw XML (canonical form + also see XML Format Specification)
Operation Definition
<?xml version="1.0" encoding="UTF-8"?> <OperationDefinition xmlns="http://hl7.org/fhir"> <id value="NamingSystem-preferred-id"/> <text> <status value="generated"/> <div xmlns="http://www.w3.org/1999/xhtml"> <h2> Fetch Preferred it</h2> <p> OPERATION: Fetch Preferred it</p> <p> The official URL for this operation definition is: </p> <pre> http://hl7.org/fhir/OperationDefinition/NamingSystem-preferred-id</pre> <div> <p> This operation returns the preferred identifiers for identifiers, and terminologies. The operation takes 2 parameters:</p> <ul> <li> a system identifier - either a URI, an OID, or a v2 table 0396 (other) code</li> <li> a code for what kind of identifier is desired (URI, OID, v2 table 0396 identifier)</li> </ul> <p> and returns either the requested identifier, or an HTTP errors response with an OperationOutcome because either the provided identifier was not recognized, or the requested identiifer type is not known.</p> <p> The principle use of this operation is when converting between v2, CDA and FHIR Identifier/CX/II and CodeableConcepts/C(N/W)E/CD but the operation may also find use when converting metadata such as profiles.</p> </div> <p> URL: [base]/NamingSystem/$preferred-id</p> <p> Parameters</p> <table class="grid"> <tr> <td> <b> Use</b> </td> <td> <b> Name</b> </td> <td> <b> Cardinality</b> </td> <td> <b> Type</b> </td> <td> <b> Binding</b> </td> <td> <b> Documentation</b> </td> </tr> <tr> <td> IN</td> <td> id</td> <td> 1..1</td> <td> <a href="datatypes.html#string">string</a> </td> <td/> <td> <div> <p> The server parses the provided id to see what type it is (mary a URI, an OID as a URI, a plain OID, or a v2 table 0396 code). If the server can't tell what type of identifier it is, it can try it as multiple types. It is an error if more than one system matches the provided identifier</p> </div> </td> </tr> <tr> <td> IN</td> <td> type</td> <td> 1..1</td> <td> <a href="datatypes.html#code">code</a> </td> <td> <a href="valueset-namingsystem-identifier-type.html">http://hl7.org/fhir/ValueSet/namingsystem-identifier-type|4.0.1</a> (Required) </td> <td/> </tr> <tr> <td> OUT</td> <td> result</td> <td> 1..1</td> <td> <a href="datatypes.html#string">string</a> </td> <td/> <td> <div> <p> OIDs are return as plain OIDs (not the URI form).</p> </div> </td> </tr> </table> <div> <p> Servers handle this request by finding the provided identifier in their known naming systems, and returning the requested identifier type ( <a href="namingsystem-definitions.html#NamingSystem.uniqueId.type">NamingSystem.uniqueId.type</a> ). If there are multiple possible identifiers of the specified type (e.g. multiple OIDs) the server returns an error. </p> <p> If the server wishes, it can also look through all code systems and value sets it knows about when attempting to find the requested identifier</p> </div> </div> </text> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"> <valueInteger value="1"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <url value="http://hl7.org/fhir/OperationDefinition/NamingSystem-preferred-id"/> <version value="4.0.1"/> <name value="Fetch Preferred it"/> <status value="draft"/> <kind value="operation"/> <date value="2019-11-01T09:29:23+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="This operation returns the preferred identifiers for identifiers, and terminologies. The operation takes 2 parameters: * a system identifier - either a URI, an OID, or a v2 table 0396 (other) code * a code for what kind of identifier is desired (URI, OID, v2 table 0396 identifier) and returns either the requested identifier, or an HTTP errors response with an OperationOutcome because either the provided identifier was not recognized, or the requested identiifer type is not known. The principle use of this operation is when converting between v2, CDA and FHIR Identifier/CX/II and CodeableConcepts/C(N/W)E/CD but the operation may also find use when converting metadata such as profiles."/> <code value="preferred-id"/> <comment value="Servers handle this request by finding the provided identifier in their known naming systems, and returning the requested identifier type ([NamingSystem.uniqueId.type](namingsystem-definitions.h tml#NamingSystem.uniqueId.type)). If there are multiple possible identifiers of the specified type (e.g. multiple OIDs) the server returns an error. If the server wishes, it can also look through all code systems and value sets it knows about when attempting to find the requested identifier"/> <resource value="NamingSystem"/> <system value="false"/> <type value="true"/> <instance value="false"/> <parameter> <name value="id"/> <use value="in"/> <min value="1"/> <max value="1"/> <documentation value="The server parses the provided id to see what type it is (mary a URI, an OID as a URI, a plain OID, or a v2 table 0396 code). If the server can't tell what type of identifier it is, it can try it as multiple types. It is an error if more than one system matches the provided identifier"/> <type value="string"/> </parameter> <parameter> <name value="type"/> <use value="in"/> <min value="1"/> <max value="1"/> <type value="code"/> <binding> <strength value="required"/> <valueSet value="http://hl7.org/fhir/ValueSet/namingsystem-identifier-type|4.0.1"/> </binding> </parameter> <parameter> <name value="result"/> <use value="out"/> <min value="1"/> <max value="1"/> <documentation value="OIDs are return as plain OIDs (not the URI form)."/> <type value="string"/> </parameter> </OperationDefinition>
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.