type: codesystemcodesystem: reference-handling-policy

Reference Handling Policy

Official URL: http://hl7.org/fhir/reference-handling-policy
Version: 6.0.0
Status: active
Name: ReferenceHandlingPolicy
Title: Reference Handling Policy
Publisher: HL7 (FHIR Project)
Description: A set of flags that defines how references are supported.
Case Sensitive: true
Content: complete

Concepts

Code	Display	Definition
literal	Literal References	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').
logical	Logical References	The server allows logical references (i.e. using Reference.identifier).
resolves	Resolves References	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).
enforced	Reference Integrity Enforced	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 often not the case for middleware/proxy systems.
local	Local References Only	The server does not support references that point to other servers.

CodeSystem XML

<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="reference-handling-policy"/>
  <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-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>
  <identifier>
    <use value="old"/>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.1.193"/>
  </identifier>
  <version value="6.0.0"/>
  <name value="ReferenceHandlingPolicy"/>
  <title value="Reference Handling Policy"/>
  <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="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"/>
    <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"/>
    <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 often not 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>