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Raw XML ( canonical form + also see XML Format Specification )
Definition for Code System ReferenceHandlingPolicy
<?xml version="1.0" encoding="UTF-8"?> <CodeSystem xmlns="http://hl7.org/fhir"> <id value="reference-handling-policy"/> <meta><lastUpdated value="2019-11-01T09:29:23.356+11:00"/> </meta> <text> <status value="generated"/> <div xmlns="http://www.w3.org/1999/xhtml"> <h2> ReferenceHandlingPolicy</h2> <div> <p> A set of flags that defines how references are supported.</p> </div> <p> This code system http://hl7.org/fhir/reference-handling-policy 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>literal<td style="white-space:nowrap">literal <a name="reference-handling-policy-literal"> </a> </td> <td> Literal References</td>The server supports and populates Literal references where they are known (this code does not guarantee that all references are literal; see 'enforced')<td> The server supports and populates Literal references (i.e. using Reference.reference) where they are known (this code does not guarantee that all references are literal; see 'enforced').</td> </tr> <tr>logical<td style="white-space:nowrap">logical <a name="reference-handling-policy-logical"> </a> </td> <td> Logical References</td><td> The server allows logical references (i.e. using Reference.identifier).</td> </tr> <tr>resolves<td style="white-space:nowrap">resolves <a name="reference-handling-policy-resolves"> </a> </td> <td> Resolves References</td>The server will attempt to resolve logical references to literal references (if resolution fails, the server may still accept resources; see logical)<td> The server will attempt to resolve logical references to literal references - i.e. converting Reference.identifier to Reference.reference (if resolution fails, the server may still accept resources; see logical).</td> </tr> <tr>enforced<td style="white-space:nowrap">enforced <a name="reference-handling-policy-enforced"> </a> </td> <td> Reference Integrity Enforced</td> <td> The server enforces that references have integrity - e.g. it ensures that references can always be resolved. This is typically the case for clinical record systems, but oftennot the case for middleware/proxy systemsnot the case for middleware/proxy systems.</td> </tr> <tr>local<td style="white-space:nowrap">local <a name="reference-handling-policy-local"> </a> </td> <td> Local References Only</td><td> The server does not support references that point to other servers.</td> </tr> </table> </div> </text><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"> <valueCode value="fhir"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="normative"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version"> <valueCode value="4.0.0"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"> <valueInteger value="5"/> </extension> <url value="http://hl7.org/fhir/reference-handling-policy"/> <identifier> <system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.4.203"/> </identifier><version value="4.0.1"/> <name value="ReferenceHandlingPolicy"/><title value="ReferenceHandlingPolicy"/> <status value="active"/> <experimental value="false"/><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="A set of flags that defines how references are supported."/> <caseSensitive value="true"/> <valueSet value="http://hl7.org/fhir/ValueSet/reference-handling-policy"/> <content value="complete"/> <concept> <code value="literal"/> <display value="Literal References"/>The server supports and populates Literal references where they are known (this code does not guarantee that all references are literal; see 'enforced')<definition value="The server supports and populates Literal references (i.e. using Reference.reference) where they are known (this code does not guarantee that all references are literal; see 'enforced')."/> </concept> <concept> <code value="logical"/> <display value="Logical References"/><definition value="The server allows logical references (i.e. using Reference.identifier)."/> </concept> <concept> <code value="resolves"/> <display value="Resolves References"/>The server will attempt to resolve logical references to literal references (if resolution fails, the server may still accept resources; see logical)<definition value="The server will attempt to resolve logical references to literal references - i.e. converting Reference.identifier to Reference.reference (if resolution fails, the server may still accept resources; see logical)."/> </concept> <concept> <code value="enforced"/> <display value="Reference Integrity Enforced"/> <definition value="The server enforces that references have integrity - e.g. it ensures that references can always be resolved. This is typically the case for clinical record systems, but oftennot the case for middleware/proxy systemsnot the case for middleware/proxy systems."/> </concept> <concept> <code value="local"/> <display value="Local References Only"/><definition value="The server does not support references that point to other servers."/> </concept> </ CodeSystem >
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.