Release 5 R6 Ballot (3rd Draft)
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Publish-box (todo)

Example CodeSystem/safety-entries (XML)

Terminology FHIR Infrastructure Work Group Maturity Level : N/A Standards Status : Informative

Raw XML ( canonical form + also see XML Format Specification )

Definition for Code SystemFHIRSafetyCheckListEntries

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


<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="safety-entries"/> 
  <meta> 
    

    <lastUpdated value="2025-04-01T12:16:37.966+11:00"/> 
  </meta> 
  <text> 
    <status value="generated"/> 
    <div xmlns="http://www.w3.org/1999/xhtml">
      This code system 
         defines the following codes:

      <p class="res-header-id">
        <b> Generated Narrative: CodeSystem safety-entries</b> 
      </p> 
      <a name="safety-entries"> </a> 
      <a name="hcsafety-entries"> </a> 
      <a name="safety-entries-en-AU"> </a> 
      <p> This case-sensitive code system 
        <code> http://hl7.org/fhir/safety-entries</code>  defines the following codes in a Is-A hierarchy:
      </p> 
      <table class="codes">
        <tr> 
          <td style="white-space:nowrap">
            <b> Code</b> 
          </td> 
          <td> 
            <b> Definition</b> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">life-cycle
            <a name="safety-entries-life-cycle"> </a> 
          </td> 
          <td> 
            <div> 
              <p> For each resource that my system handles, my system handles the full 
                <a href="lifecycle.html">Life cycle</a>  (status codes, currency issues, and erroneous entry status)
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">modifiers
            <a name="safety-entries-modifiers"> </a> 
          </td> 
          <td> 
            <div> 
              <p> For each resource that my system handles, I've reviewed the 
                <a href="conformance-rules.html#isModifier">Modifier elements</a> 
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">modifier-extensions
            <a name="safety-entries-modifier-extensions"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system checks for 
                <a href="extensibility.html#modifierExtension">modifierExtension</a>  elements
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">must-support
            <a name="safety-entries-must-support"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system supports 
                <a href="conformance-rules.html#mustSupport">elements labeled as 'MustSupport'</a>  in the 
                <a href="profiling.html">profiles</a>  that apply to my system
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">identity
            <a name="safety-entries-identity"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system has documented how 
                <a href="managing.html#distributed">distributed resource identification</a>  works in its relevant contexts of use, and where (and why) 
                <a href="references.html#contained">contained</a>  resources are used
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">current
            <a name="safety-entries-current"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system manages lists of 
                <a href="lifecycle.html#current">current resources</a>  correctly
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">error-checks
            <a name="safety-entries-error-checks"> </a> 
          </td> 
          <td> 
            <div> 
              <p> When other systems 
                <a href="http.html#summary">return http errors from the RESTful API</a>  and 
                <a href="operations.html">Operations</a>  (perhaps using 
                <a href="operationoutcome.html">Operation Outcome</a> ), my system checks for them and handles them appropriately
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">link-merge
            <a name="safety-entries-link-merge"> </a> 
          </td> 
          <td> 
            <div> 
              My system ensures checks for patient links (and/or merges) and handles data that

              <p> My system ensures checks for patient links (and/or merges) and handles data that
                 is linked to patients accordingly</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">cs-declare
            <a name="safety-entries-cs-declare"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system publishes a 
                <a href="capabilitystatement.html">Capability Statement</a>  with 
                <a href="structuredefinition.html">StructureDefinitions</a> , 
                <a href="valueset.html">ValueSets</a> , and 
                <a href="operationdefinition.html">OperationDefinitions</a> , etc., so other implementers know how the system functions
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">valid-checked
            <a name="safety-entries-valid-checked"> </a> 
          </td> 
          <td> 
            <div> 
              <p> All resources in use are 
                <a href="validation.html">valid</a>  against the base specification and the 
                <a href="profiling.html">profiles</a>  that apply to my system (see note about the 
                <a href="validation.html#correct-use">correct run-time use of validation</a> )
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">obs-focus
            <a name="safety-entries-obs-focus"> </a> 
          </td> 
          <td> 
            <div> 
              <p> I've reviewed the 
                <a href="observation.html">Observation</a>  resource, and understand how 
                 is a mechanism for observations to be about someone or something other than the

                <code> focus</code>  is a mechanism for observations to be about someone or something other than the
                 patient or subject of record.
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">time-zone
            <a name="safety-entries-time-zone"> </a> 
          </td> 
          <td> 
            <div> 
              My system checks for timezones and adjusts times appropriately. (note: timezones

              <p> My system checks for timezones and adjusts times appropriately. (note: timezones
                 are extremely difficult to get correct - see 
                , and note that some fields should be timezone corrected, and others should not

                <a href="https://www.w3.org/TR/timezone/">W3C Timezone Advice</a> , and note that some fields should be timezone corrected, and others should not
                 be)
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">date-rendering
            <a name="safety-entries-date-rendering"> </a> 
          </td> 
          <td> 
            <div> 
              My system renders dates safely for changes in culture and language (the date formats
                 D-M-Y and M-D-Y are not differentiated for many dates, and this is a well-known
                 source of confusion. Systems should use the month name, or otherwise be specific
                 for each date when rendering, unless there is solid confidence that such confusion
                 cannot arise, even in the future when information/narrative from resources will

              <p> My system renders dates safely for changes in culture and language (the date formats
                 D-M-Y and M-D-Y are not differentiated for many dates, and this is a well-known
                 source of confusion. Systems should use the month name, or otherwise be specific
                 for each date when rendering, unless there is solid confidence that such confusion
                 cannot arise, even in the future when information/narrative from resources will

                 be shared much more widely)</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">cross-resource
            <a name="safety-entries-cross-resource"> </a> 
          </td> 
          <td> 
            <div> 
              My system takes care to ensure that clients can (for servers) or will (for clients)
                 find the information they need when content that might reasonably be exposed using
                 more than one FHIR resource. Possible patterns: Support a single search across
                 the applicable resources, or expose data through each applicable resource. See

              <p> My system takes care to ensure that clients can (for servers) or will (for clients)
                 find the information they need when content that might reasonably be exposed using
                 more than one FHIR resource. Possible patterns: Support a single search across
                 the applicable resources, or expose data through each applicable resource. See

                 discussion on 
                <a href="https://confluence.hl7.org/display/FHIR/Managing+Overlap+Between+Resources">Wiki Page</a>  for further information
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">display-warnings
            <a name="safety-entries-display-warnings"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system will display warnings returned by the server to the user</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">search-parameters
            <a name="safety-entries-search-parameters"> </a> 
          </td> 
          <td> 
            <div> 
              My system checks whether the server processed all the requested search parameter,
                 and is safe if servers ignore parameters (typically, either filters locally or

              <p> My system checks whether the server processed all the requested search parameter,
                 and is safe if servers ignore parameters (typically, either filters locally or

                 warns the user)</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">missing-values
            <a name="safety-entries-missing-values"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system caters for 
                 when doing search operations, and responds correctly to the client with regard

                <a href="search.html#missing">parameters that have missing values</a>  when doing search operations, and responds correctly to the client with regard
                 to 
                <a href="search.html#errors">erroneous search parameters</a> 
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">default-filters
            <a name="safety-entries-default-filters"> </a> 
          </td> 
          <td> 
            <div> 
              My system includes appropriate default filters when searching based on patient
                 context - e.g. filtering out entered-in-error records, filtering to only include
                 active, living patients if appropriate, and clearly documents these (preferably

              <p> My system includes appropriate default filters when searching based on patient
                 context - e.g. filtering out entered-in-error records, filtering to only include
                 active, living patients if appropriate, and clearly documents these (preferably

                 including them in the self link for a search</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">deletion-check
            <a name="safety-entries-deletion-check"> </a> 
          </td> 
          <td> 
            <div> 
              For each resource, I have checked whether resources can be deleted, and/or how

              <p> For each resource, I have checked whether resources can be deleted, and/or how
                 records are marked as incorrect/no longer relevant</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">deletion-replication
            <a name="safety-entries-deletion-replication"> </a> 
          </td> 
          <td> 
            <div> 
              Deletion of records (or equivalent updates in status) flow through the system so

              <p> Deletion of records (or equivalent updates in status) flow through the system so
                 any replicated copies are deleted/updated</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">deletion-support
            <a name="safety-entries-deletion-support"> </a> 
          </td> 
          <td> 
            <div> 
              (If a server) my documentation about deleted resources is clear, and my test sandbox

              <p> (If a server) my documentation about deleted resources is clear, and my test sandbox
                 (if exists) has deleted/error record cases in the test data</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">check-consent
            <a name="safety-entries-check-consent"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system checks that the right 
                <a href="consent.html">Patient consent</a>  has been granted (where applicable)
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">distribute-aod
            <a name="safety-entries-distribute-aod"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system sends an 
                 to the consenter as requested when permitted actions on resources are performed

                <a href="secpriv-module.html#AoD">Accounting of Disclosure</a>  to the consenter as requested when permitted actions on resources are performed
                 using an 
                <a href="auditevent.html">AuditEvent</a>  Resource
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">check-clocks
            <a name="safety-entries-check-clocks"> </a> 
          </td> 
          <td> 
            <div> 
              My system ensures that system clocks are synchronized using a protocol like NTP

              <p> My system ensures that system clocks are synchronized using a protocol like NTP
                 or SNTP, or my server is robust against clients that have the wrong clock set</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">check-dns-responses
            <a name="safety-entries-check-dns-responses"> </a> 
          </td> 
          <td> 
            <div> 
              My system uses security methods for an API to authenticate where Domain Name System

              <p> My system uses security methods for an API to authenticate where Domain Name System
                 (DNS) responses are coming from and ensure that they are valid</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-encryption
            <a name="safety-entries-use-encryption"> </a> 
          </td> 
          <td> 
            <div> 
              Production exchange of patient or other sensitive data will always use some form

              <p> Production exchange of patient or other sensitive data will always use some form
                 of 
                <a href="security.html#http">encryption on the wire</a> 
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-tls
            <a name="safety-entries-use-tls"> </a> 
          </td> 
          <td> 
            <div> 
              <p> Where resources are exchanged using 
                <a href="security.html#http">HTTP</a> , 
                <a href="https://en.wikipedia.org/wiki/Transport_Layer_Security">TLS</a>  should be utilized to protect the communications channel
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-smime
            <a name="safety-entries-use-smime"> </a> 
          </td> 
          <td> 
            <div> 
              <p> Where resources are exchanged using email, 
                <a href="https://en.wikipedia.org/wiki/S/MIME">S/MIME</a>  should be used to protect the end-to-end communication
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-tls-per-bcp195
            <a name="safety-entries-use-tls-per-bcp195"> </a> 
          </td> 
          <td> 
            <div> 
              <p> Production exchange should utilize recommendations for 
                <a href="https://tools.ietf.org/html/bcp195">Best-Current-Practice on TLS in BCP 195</a> 
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-ouath
            <a name="safety-entries-use-ouath"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system utilizes a risk and use case 
                <a href="security.html#oauth">appropriate OAuth profile</a>  (preferably 
                <a href="http://hl7.org/fhir/smart-app-launch">Smart App Launch</a> ), with a 
                <a href="security.html#authentication">clear policy on authentication strength</a> 
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-openidconnect
            <a name="safety-entries-use-openidconnect"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system uses 
                 (or other suitable authentication protocol) to verify identity of end user, where
                 it is necessary that end-users be identified to the client application, and has

                <a href="https://openid.net/connect/">OpenID Connect</a>  (or other suitable authentication protocol) to verify identity of end user, where
                 it is necessary that end-users be identified to the client application, and has

                 a clear policy on 
                <a href="secpriv-module.html#user">identity proofing</a> 
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-rbac
            <a name="safety-entries-use-rbac"> </a> 
          </td> 
          <td> 
            <div> 
              My system applies appropriate access control to every request, using a combination

              <p> My system applies appropriate access control to every request, using a combination
                 of requester’s clearance (ABAC) and/or roles (RBAC)</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-labels
            <a name="safety-entries-use-labels"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system considers 
                <a href="security-labels.html">security labels</a>  on the affected resources when making access control decisions
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">render-narratives
            <a name="safety-entries-render-narratives"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system can 
                <a href="narrative.html#css">render narratives properly</a>  and 
                <a href="security.html#narrative">securely</a> (where they are used)
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">check=validation
            <a name="safety-entries-check.61validation"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system 
                 (whether in resource format or other) from other actors so that it data is well-formed

                <a href="validation.html">validates all input received</a>  (whether in resource format or other) from other actors so that it data is well-formed
                 and does not contain content that would cause unwanted system behavior
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-provenance
            <a name="safety-entries-use-provenance"> </a> 
          </td> 
          <td> 
            <div> 
              <p> My system makes the right 
                <a href="provenance.html">Provenance</a>  statements and 
                <a href="auditevent.html">AuditEvent</a>  logs, and uses the right 
                <a href="security-labels.html#core">security labels</a>  where appropriate
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">enable-cors
            <a name="safety-entries-enable-cors"> </a> 
          </td> 
          <td> 
            <div> 
              <p> Server: CORS (
                <a href="http://enable-cors.org/">cross-origin resource sharing</a> ) is appropriately enabled (many clients are Javascript apps running in a browser)
              </p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-json
            <a name="safety-entries-use-json"> </a> 
          </td> 
          <td> 
            <div> 
              JSON is supported (many clients are Javascript apps running in a browser; XML is

              <p> JSON is supported (many clients are Javascript apps running in a browser; XML is
                 inconvenient at best)</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">json-for-errors
            <a name="safety-entries-json-for-errors"> </a> 
          </td> 
          <td> 
            <div> 
              JSON is returned correctly when errors happen (clients often don't handle HTML

              <p> JSON is returned correctly when errors happen (clients often don't handle HTML
                 errors well)</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-format-header
            <a name="safety-entries-use-format-header"> </a> 
          </td> 
          <td> 
            <div> 
              <p> The _format header is supported correctly</p> 
            </div> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">use-operation-outcome
            <a name="safety-entries-use-operation-outcome"> </a> 
          </td> 
          <td> 
            <div> 
              <p> Errors are trapped and an OperationOutcome returned</p> 
            </div> 
          </td> 
        </tr> 
      </table> 
    </div> 
  </text> 
  <extension url="http://hl7.org/fhir/StructureDefinition/codesystem-use-markdown">
    <valueBoolean value="true"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir"/> 
  </extension> 
  <url value="http://hl7.org/fhir/safety-entries"/> 
  <identifier> 
    <system value="urn:ietf:rfc:3986"/> 
    <value value="urn:oid:2.16.840.1.113883.4.642.4.1819"/> 
  </identifier> 
  

  <version value="6.0.0-ballot3"/> 
  <name value="FHIRSafetyCheckListEntries"/> 
  <title value="FHIR Safety CheckList Entries"/> 
  <status value="draft"/> 
  <experimental value="false"/> 
  
  The [checklist items](http://hl7.org/fhir/safety.html) defined as part of the FHIR

  <publisher value="HL7 International / FHIR Infrastructure"/> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://hl7.org/fhir"/> 
    </telecom> 
  </contact> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://www.hl7.org/Special/committees/fiwg/index.cfm"/> 
    </telecom> 
  </contact> 
  <description value="The [checklist items](http://hl7.org/fhir/safety.html) defined as part of the FHIR
   specification."/> 
  <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/safety-entries"/> 
  <hierarchyMeaning value="is-a"/> 
  <content value="complete"/> 
  <concept> 
    <code value="life-cycle"/> 
    For each resource that my system handles, my system handles the full [Life cycle](lifecycle.h

    <definition value="For each resource that my system handles, my system handles the full [Life cycle](lifecycle.h
    tml) (status codes, currency issues, and erroneous entry status)"/> 
  </concept> 
  <concept> 
    <code value="modifiers"/> 
    For each resource that my system handles, I've reviewed the [Modifier elements](conformance-r

    <definition value="For each resource that my system handles, I've reviewed the [Modifier elements](conformance-r
    ules.html#isModifier)"/> 
  </concept> 
  <concept> 
    <code value="modifier-extensions"/> 
    My system checks for [modifierExtension](extensibility.html#modifierExtension)

    <definition value="My system checks for [modifierExtension](extensibility.html#modifierExtension)
     elements"/> 
  </concept> 
  <concept> 
    <code value="must-support"/> 
    My system supports [elements labeled as 'MustSupport'](conformance-rules.html#mustSupport)

    <definition value="My system supports [elements labeled as 'MustSupport'](conformance-rules.html#mustSupport)
     in the [profiles](profiling.html) that apply to my system"/> 
  </concept> 
  <concept> 
    <code value="identity"/> 
    My system has documented how [distributed resource identification](managing.html#distributed)
     works in its relevant contexts of use, and where (and why) [contained](references.html#contai

    <definition value="My system has documented how [distributed resource identification](managing.html#distributed)
     works in its relevant contexts of use, and where (and why) [contained](references.html#contai

    ned) resources are used"/> 
  </concept> 
  <concept> 
    <code value="current"/> 
    <definition value="My system manages lists of [current resources](lifecycle.html#current) correctly"/> 
  </concept> 
  <concept> 
    <code value="error-checks"/> 
    When other systems [return http errors from the RESTful API](http.html#summary)
     and [Operations](operations.html) (perhaps using [Operation Outcome](operationoutcome.html)),

    <definition value="When other systems [return http errors from the RESTful API](http.html#summary)
     and [Operations](operations.html) (perhaps using [Operation Outcome](operationoutcome.html)),

     my system checks for them and handles them appropriately"/> 
  </concept> 
  <concept> 
    <code value="link-merge"/> 
    My system ensures checks for patient links (and/or merges) and handles data that

    <definition value="My system ensures checks for patient links (and/or merges) and handles data that
     is linked to patients accordingly"/> 
  </concept> 
  <concept> 
    <code value="cs-declare"/> 
    My system publishes a [Capability Statement](capabilitystatement.html) with [StructureDefinit
    ions](structuredefinition.html), [ValueSets](valueset.html), and [OperationDefinitions](operat

    <definition value="My system publishes a [Capability Statement](capabilitystatement.html) with [StructureDefinit
    ions](structuredefinition.html), [ValueSets](valueset.html), and [OperationDefinitions](operat

    iondefinition.html), etc., so other implementers know how the system functions"/> 
  </concept> 
  <concept> 
    <code value="valid-checked"/> 
    All resources in use are [valid](validation.html) against the base specification
     and the [profiles](profiling.html) that apply to my system (see note about the

    <definition value="All resources in use are [valid](validation.html) against the base specification
     and the [profiles](profiling.html) that apply to my system (see note about the

     [correct run-time use of validation](validation.html#correct-use))"/> 
  </concept> 
  <concept> 
    <code value="obs-focus"/> 
    I've reviewed the [Observation](observation.html) resource, and understand how
     ```focus``` is a mechanism for observations to be about someone or something other

    <definition value="I've reviewed the [Observation](observation.html) resource, and understand how
     ```focus``` is a mechanism for observations to be about someone or something other

     than the patient or subject of record."/> 
  </concept> 
  <concept> 
    <code value="time-zone"/> 
    My system checks for timezones and adjusts times appropriately. (note: timezones
     are extremely difficult to get correct - see [W3C Timezone Advice](https://www.w3.org/TR/time
    zone/), and note that some fields should be timezone corrected, and others should

    <definition value="My system checks for timezones and adjusts times appropriately. (note: timezones
     are extremely difficult to get correct - see [W3C Timezone Advice](https://www.w3.org/TR/time
    zone/), and note that some fields should be timezone corrected, and others should

     not be)"/> 
  </concept> 
  <concept> 
    <code value="date-rendering"/> 
    My system renders dates safely for changes in culture and language (the date formats
     D-M-Y and M-D-Y are not differentiated for many dates, and this is a well-known
     source of confusion. Systems should use the month name, or otherwise be specific
     for each date when rendering, unless there is solid confidence that such confusion
     cannot arise, even in the future when information/narrative from resources will

    <definition value="My system renders dates safely for changes in culture and language (the date formats
     D-M-Y and M-D-Y are not differentiated for many dates, and this is a well-known
     source of confusion. Systems should use the month name, or otherwise be specific
     for each date when rendering, unless there is solid confidence that such confusion
     cannot arise, even in the future when information/narrative from resources will

     be shared much more widely)"/> 
  </concept> 
  <concept> 
    <code value="cross-resource"/> 
    My system takes care to ensure that clients can (for servers) or will (for clients)
     find the information they need when content that might reasonably be exposed using
     more than one FHIR resource. Possible patterns: Support a single search across
     the applicable resources, or expose data through each applicable resource. See
     discussion on [Wiki Page](https://confluence.hl7.org/display/FHIR/Managing+Overlap+Between+Re

    <definition value="My system takes care to ensure that clients can (for servers) or will (for clients)
     find the information they need when content that might reasonably be exposed using
     more than one FHIR resource. Possible patterns: Support a single search across
     the applicable resources, or expose data through each applicable resource. See
     discussion on [Wiki Page](https://confluence.hl7.org/display/FHIR/Managing+Overlap+Between+Re

    sources) for further information"/> 
  </concept> 
  <concept> 
    <code value="display-warnings"/> 
    <definition value="My system will display warnings returned by the server to the user"/> 
  </concept> 
  <concept> 
    <code value="search-parameters"/> 
    My system checks whether the server processed all the requested search parameter,
     and is safe if servers ignore parameters (typically, either filters locally or

    <definition value="My system checks whether the server processed all the requested search parameter,
     and is safe if servers ignore parameters (typically, either filters locally or

     warns the user)"/> 
  </concept> 
  <concept> 
    <code value="missing-values"/> 
    My system caters for [parameters that have missing values](search.html#missing)
     when doing search operations, and responds correctly to the client with regard

    <definition value="My system caters for [parameters that have missing values](search.html#missing)
     when doing search operations, and responds correctly to the client with regard

     to [erroneous search parameters](search.html#errors)"/> 
  </concept> 
  <concept> 
    <code value="default-filters"/> 
    My system includes appropriate default filters when searching based on patient
     context - e.g. filtering out entered-in-error records, filtering to only include
     active, living patients if appropriate, and clearly documents these (preferably

    <definition value="My system includes appropriate default filters when searching based on patient
     context - e.g. filtering out entered-in-error records, filtering to only include
     active, living patients if appropriate, and clearly documents these (preferably

     including them in the self link for a search"/> 
  </concept> 
  <concept> 
    <code value="deletion-check"/> 
    For each resource, I have checked whether resources can be deleted, and/or how

    <definition value="For each resource, I have checked whether resources can be deleted, and/or how
     records are marked as incorrect/no longer relevant"/> 
  </concept> 
  <concept> 
    <code value="deletion-replication"/> 
    Deletion of records (or equivalent updates in status) flow through the system so

    <definition value="Deletion of records (or equivalent updates in status) flow through the system so
     any replicated copies are deleted/updated"/> 
  </concept> 
  <concept> 
    <code value="deletion-support"/> 
    (If a server) my documentation about deleted resources is clear, and my test sandbox

    <definition value="(If a server) my documentation about deleted resources is clear, and my test sandbox
     (if exists) has deleted/error record cases in the test data"/> 
  </concept> 
  <concept> 
    <code value="check-consent"/> 
    My system checks that the right [Patient consent](consent.html) has been granted

    <definition value="My system checks that the right [Patient consent](consent.html) has been granted
     (where applicable)"/> 
  </concept> 
  <concept> 
    <code value="distribute-aod"/> 
    My system sends an [Accounting of Disclosure](secpriv-module.html#AoD) to the consenter
     as requested when permitted actions on resources are performed using an [AuditEvent](auditeve

    <definition value="My system sends an [Accounting of Disclosure](secpriv-module.html#AoD) to the consenter
     as requested when permitted actions on resources are performed using an [AuditEvent](auditeve

    nt.html) Resource"/> 
  </concept> 
  <concept> 
    <code value="check-clocks"/> 
    My system ensures that system clocks are synchronized using a protocol like NTP

    <definition value="My system ensures that system clocks are synchronized using a protocol like NTP
     or SNTP, or my server is robust against clients that have the wrong clock set"/> 
  </concept> 
  <concept> 
    <code value="check-dns-responses"/> 
    My system uses security methods for an API to authenticate where Domain Name System

    <definition value="My system uses security methods for an API to authenticate where Domain Name System
     (DNS) responses are coming from and ensure that they are valid"/> 
  </concept> 
  <concept> 
    <code value="use-encryption"/> 
    Production exchange of patient or other sensitive data will always use some form

    <definition value="Production exchange of patient or other sensitive data will always use some form
     of [encryption on the wire](security.html#http)"/> 
  </concept> 
  <concept> 
    <code value="use-tls"/> 
    Where resources are exchanged using [HTTP](security.html#http), [TLS](https://en.wikipedia.or
    g/wiki/Transport_Layer_Security) should be utilized to protect the communications

    <definition value="Where resources are exchanged using [HTTP](security.html#http), [TLS](https://en.wikipedia.or
    g/wiki/Transport_Layer_Security) should be utilized to protect the communications

     channel"/> 
  </concept> 
  <concept> 
    <code value="use-smime"/> 
    Where resources are exchanged using email, [S/MIME](https://en.wikipedia.org/wiki/S/MIME)

    <definition value="Where resources are exchanged using email, [S/MIME](https://en.wikipedia.org/wiki/S/MIME)
     should be used to protect the end-to-end communication"/> 
  </concept> 
  <concept> 
    <code value="use-tls-per-bcp195"/> 
    Production exchange should utilize recommendations for [Best-Current-Practice on

    <definition value="Production exchange should utilize recommendations for [Best-Current-Practice on
     TLS in BCP 195](https://tools.ietf.org/html/bcp195)"/> 
  </concept> 
  <concept> 
    <code value="use-ouath"/> 
    My system utilizes a risk and use case [appropriate OAuth profile](security.html#oauth)
     (preferably [Smart App Launch](http://hl7.org/fhir/smart-app-launch)), with a [clear

    <definition value="My system utilizes a risk and use case [appropriate OAuth profile](security.html#oauth)
     (preferably [Smart App Launch](http://hl7.org/fhir/smart-app-launch)), with a [clear

     policy on authentication strength](security.html#authentication)"/> 
  </concept> 
  <concept> 
    <code value="use-openidconnect"/> 
    My system uses [OpenID Connect](https://openid.net/connect/) (or other suitable
     authentication protocol) to verify identity of end user, where it is necessary
     that end-users be identified to the client application, and has a clear policy

    <definition value="My system uses [OpenID Connect](https://openid.net/connect/) (or other suitable
     authentication protocol) to verify identity of end user, where it is necessary
     that end-users be identified to the client application, and has a clear policy

     on [identity proofing](secpriv-module.html#user)"/> 
  </concept> 
  <concept> 
    <code value="use-rbac"/> 
    My system applies appropriate access control to every request, using a combination

    <definition value="My system applies appropriate access control to every request, using a combination
     of requester’s clearance (ABAC) and/or roles (RBAC)"/> 
  </concept> 
  <concept> 
    <code value="use-labels"/> 
    My system considers [security labels](security-labels.html) on the affected resources

    <definition value="My system considers [security labels](security-labels.html) on the affected resources
     when making access control decisions"/> 
  </concept> 
  <concept> 
    <code value="render-narratives"/> 
    My system can [render narratives properly](narrative.html#css) and [securely](security.html#n

    <definition value="My system can [render narratives properly](narrative.html#css) and [securely](security.html#n
    arrative)(where they are used)"/> 
  </concept> 
  <concept> 
    <code value="check=validation"/> 
    My system [validates all input received](validation.html) (whether in resource
     format or other) from other actors so that it data is well-formed and does not

    <definition value="My system [validates all input received](validation.html) (whether in resource
     format or other) from other actors so that it data is well-formed and does not

     contain content that would cause unwanted system behavior"/> 
  </concept> 
  <concept> 
    <code value="use-provenance"/> 
    My system makes the right [Provenance](provenance.html) statements and [AuditEvent](auditeven
    t.html) logs, and uses the right [security labels](security-labels.html#core) where

    <definition value="My system makes the right [Provenance](provenance.html) statements and [AuditEvent](auditeven
    t.html) logs, and uses the right [security labels](security-labels.html#core) where

     appropriate"/> 
  </concept> 
  <concept> 
    <code value="enable-cors"/> 
    Server: CORS ([cross-origin resource sharing](http://enable-cors.org/)) is appropriately

    <definition value="Server: CORS ([cross-origin resource sharing](http://enable-cors.org/)) is appropriately
     enabled (many clients are Javascript apps running in a browser)"/> 
  </concept> 
  <concept> 
    <code value="use-json"/> 
    JSON is supported (many clients are Javascript apps running in a browser; XML is

    <definition value="JSON is supported (many clients are Javascript apps running in a browser; XML is
     inconvenient at best)"/> 
  </concept> 
  <concept> 
    <code value="json-for-errors"/> 
    JSON is returned correctly when errors happen (clients often don't handle HTML

    <definition value="JSON is returned correctly when errors happen (clients often don't handle HTML
     errors well)"/> 
  </concept> 
  <concept> 
    <code value="use-format-header"/> 
    <definition value="The _format header is supported correctly"/> 
  </concept> 
  <concept> 
    <code value="use-operation-outcome"/> 
    <definition value="Errors are trapped and an OperationOutcome returned"/> 
  </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.