WHO Immunization Implementation Guide
1.0.0 - release
WHO Immunization Implementation Guide, published by WHO. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/smart-immunizations/tree/132/merge and changes regularly. See the Directory of published versions
| Draft as of 2026-03-31 |
<Library xmlns="http://hl7.org/fhir">
<id value="IMMZIND23Logic"/>
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<div>
<table class="grid dict">
<tr>
<th scope="row"><b>Title: </b></th>
<td style="padding-left: 4px;">IMMZIND23Logic</td>
</tr>
<tr>
<th scope="row"><b>Id: </b></th>
<td style="padding-left: 4px;">IMMZIND23Logic</td>
</tr>
<tr>
<th scope="row"><b>Version: </b></th>
<td style="padding-left: 4px;">1.0.0</td>
</tr>
<tr>
<th scope="row"><b>Url: </b></th>
<td style="padding-left: 4px;"><a href="Library-IMMZIND23Logic.html">IMMZIND23Logic</a></td>
</tr>
<tr>
<th scope="row"><b>Status: </b></th>
<td style="padding-left: 4px;">draft</td>
</tr>
<tr>
<th scope="row"><b>Type: </b></th>
<td style="padding-left: 4px;">
<p style="margin-bottom: 5px;">
<b>system: </b> <span><a href="http://terminology.hl7.org/7.1.0/CodeSystem-library-type.html">http://terminology.hl7.org/CodeSystem/library-type</a></span>
</p>
<p style="margin-bottom: 5px;">
<b>code: </b> <span>logic-library</span>
</p>
</td>
</tr>
<tr>
<th scope="row"><b>Date: </b></th>
<td style="padding-left: 4px;">2026-03-31 13:54:17+0000</td>
</tr>
<tr>
<th scope="row"><b>Publisher: </b></th>
<td style="padding-left: 4px;">WHO</td>
</tr>
<tr>
<th scope="row"><b>Description: </b></th>
<td style="padding-left: 4px;"><div><p>This library defines population criteria logic for the IMMZ.IND.23 indicator in the Immunization CPG</p>
</div></td>
</tr>
<tr>
<th scope="row"><b>Related Artifacts: </b></th>
<td style="padding-left: 4px;">
<p><b>Dependencies</b></p>
<ul>
<li><a href="Library-WHOCommon.html">WHOCommon</a></li>
<li><a href="Library-IMMZCommon.html">IMMZCommon</a></li>
<li><a href="Library-IMMZConcepts.html">IMMZConcepts</a></li>
<li><code>http://smart.who.int/immunizations/Library/IMMZIndicatorElements</code></li>
<li><a href="Library-IMMZD2DTDTPElements.html">IMMZD2DTDTPElements</a></li>
</ul>
</td>
</tr>
<tr>
<th scope="row"><b>Parameters: </b></th>
<td style="padding-left: 4px;">
<table class="grid-dict">
<tr><th><b>Name</b></th><th><b>Type</b></th><th><b>Min</b></th><th><b>Max</b></th><th><b>In/Out</b></th></tr>
<tr><th>Measurement Period</th><th>Period</th><th>0</th><th>1</th><th>In</th></tr>
<tr><th>Patient</th><th>Patient</th><th>0</th><th>1</th><th>Out</th></tr>
<tr><th>Initial Population</th><th>boolean</th><th>0</th><th>1</th><th>Out</th></tr>
<tr><th>Denominator</th><th>boolean</th><th>0</th><th>1</th><th>Out</th></tr>
<tr><th>Numerator</th><th>boolean</th><th>0</th><th>1</th><th>Out</th></tr>
<tr><th>Stratification 1</th><th>string</th><th>0</th><th>1</th><th>Out</th></tr>
<tr><th>Stratification 2</th><th>Coding</th><th>0</th><th>1</th><th>Out</th></tr>
<tr><th>Stratification 3</th><th>Coding</th><th>0</th><th>1</th><th>Out</th></tr>
<tr><th>Stratification 4</th><th>Coding</th><th>0</th><th>1</th><th>Out</th></tr>
</table>
</td>
</tr>
<tr>
<td colspan="2">
<table>
<tr><th><a id="cql-content"><b>Content: </b></a> text/cql</th></tr>
<tr><td><pre><code class="language-cql">/*
* Library: IMMZ.IND.23 Logic
* Immunization coverage for tetanus and diphtheria-containing vaccines (DT), 4th dose
* The percentage in the target population who have received a 4th dose of a tetanus and diphtheria-containing vaccine (DT) during the reporting period
*
* Numerator: Number of tetanus and diphtheria-containing vaccine doses (4th dose) administered through routine services during the reporting period
* Numerator Computation: COUNT of immunization events WHERE "Vaccine type" = "Tetanus and diphtheria-containing vaccines (DT)" for the 4th dose in the primary series AND "Date and time of vaccination" is during the reporting period
* Denominator: Number in target group
* Denominator Computation: As defined by the Member States
*
* Disaggregation
* - Administrative area
* - Sex
* - Age in years
* - Age group (depending on schedule)
*
* References: WHO Immunization facility analysis guide (5)
* WHO Handbook on immunization data (6)
*
* Annotations: –
*/
library IMMZIND23Logic
using FHIR version '4.0.1'
include FHIRHelpers version '4.0.1'
include WHOCommon called WC
include IMMZCommon called Common
include IMMZConcepts called Concepts
include IMMZIndicatorElements called Elements
include IMMZD2DTDTPElements called DTP
parameter "Measurement Period" Interval<Date> default Interval[@2020-01-01, @2025-12-31]
context Patient
/*
* As defined by Member State
*/
define "Initial Population":
true
/*
@denominator: Number in target group
@pseudocode: As defined by the Member States
*/
define "Denominator":
true
/*
@numerator: Number of tetanus and diphtheria-containing vaccine doses (4th dose) administered through routine services during the reporting period
@pseudocode: COUNT of immunization events WHERE "Vaccine type" = "Tetanus and diphtheria-containing vaccines (DT)" for the 4th dose in the primary series AND "Date and time of vaccination" is during the reporting period
*/
define "Numerator":
Coalesce( DTP."Td Doses Administered to Patient".sortedIndex(3).occurrence.toInterval() starts during "Measurement Period",
false )
/*
@disaggregation: Administrative area
Sex
Age in years
Age group (depending on schedule)
*/
define "Stratification 1":
Elements."By Geographic Region Stratifier"
define "Stratification 2":
Elements."By Administrative Gender Stratifier"
define "Stratification 3":
Elements."Age Stratifier"
define "Stratification 4":
Elements."Child By Age Stratifier"
</code></pre></td></tr>
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</td>
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<name value="IMMZIND23Logic"/>
<title value="IMMZIND23Logic"/>
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<description
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value="http://smart.who.int/immunizations/Library/IMMZConcepts"/>
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<display value="Library Elements"/>
<resource
value="http://smart.who.int/immunizations/Library/IMMZIndicatorElements"/>
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<parameter>
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<use value="in"/>
<min value="0"/>
<max value="1"/>
<type value="Period"/>
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<parameter>
<name value="Patient"/>
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<min value="0"/>
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<type value="Patient"/>
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<name value="Initial Population"/>
<use value="out"/>
<min value="0"/>
<max value="1"/>
<type value="boolean"/>
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<parameter>
<name value="Denominator"/>
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<min value="0"/>
<max value="1"/>
<type value="boolean"/>
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<parameter>
<name value="Numerator"/>
<use value="out"/>
<min value="0"/>
<max value="1"/>
<type value="boolean"/>
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<parameter>
<name value="Stratification 1"/>
<use value="out"/>
<min value="0"/>
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<type value="string"/>
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<parameter>
<name value="Stratification 2"/>
<use value="out"/>
<min value="0"/>
<max value="1"/>
<type value="Coding"/>
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<parameter>
<name value="Stratification 3"/>
<use value="out"/>
<min value="0"/>
<max value="1"/>
<type value="Coding"/>
</parameter>
<parameter>
<name value="Stratification 4"/>
<use value="out"/>
<min value="0"/>
<max value="1"/>
<type value="Coding"/>
</parameter>
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