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

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="icr-dose-history-cs"/>
  <text>
    <status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem icr-dose-history-cs</b></p><a name="icr-dose-history-cs"> </a><a name="hcicr-dose-history-cs"> </a><p>This case-sensitive code system <code>https://icr.healthcampaigns.org/CodeSystem/icr-dose-history-cs</code> 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><td style="white-space:nowrap">zero-dose<a name="icr-dose-history-cs-zero-dose"> </a></td><td>Zero-dose</td><td>Never received the antigen before this contact (the polio 'never received nOPV2 / &gt;2 weeks old &amp; never received OPV' cell). The zero-dose population.</td></tr><tr><td style="white-space:nowrap">previously-received<a name="icr-dose-history-cs-previously-received"> </a></td><td>Previously received</td><td>Had received the antigen before this contact (the 'previously received' / 'not zero-dose' cell).</td></tr><tr><td style="white-space:nowrap">no-recall<a name="icr-dose-history-cs-no-recall"> </a></td><td>No recall / no information</td><td>Prior-dose status unknown — caregiver cannot recall and no record is available.</td></tr></table></div>
  </text>
  <url value="https://icr.healthcampaigns.org/CodeSystem/icr-dose-history-cs"/>
  <version value="0.1.0"/>
  <name value="ICRDoseHistoryCS"/>
  <title value="ICR Dose History / Zero-dose Status"/>
  <status value="draft"/>
  <experimental value="false"/>
  <date value="2026-08-07T08:41:18-04:00"/>
  <publisher value="UNICEF"/>
  <contact>
    <name value="UNICEF"/>
    <telecom>
      <system value="url"/>
      <value value="https://www.unicef.org"/>
    </telecom>
  </contact>
  <description value="A person's prior-dose status for the campaign antigen, at the time of a campaign contact — the polio SIA tally's core split (never received / previously received / no recall) and the zero-dose vs not-zero-dose axis. Carried per event by the prior-dose-status extension and aggregated as the dose-history coverage stratifier; feeds zero-dose reach and the proposed dropout/fully-immunized measures (forms-v1 / jul3-form-analysis §Aggregate #1)."/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
      <display value="World"/>
    </coding>
  </jurisdiction>
  <caseSensitive value="true"/>
  <content value="complete"/>
  <count value="3"/>
  <concept>
    <code value="zero-dose"/>
    <display value="Zero-dose"/>
    <definition value="Never received the antigen before this contact (the polio 'never received nOPV2 / &gt;2 weeks old &amp; never received OPV' cell). The zero-dose population."/>
  </concept>
  <concept>
    <code value="previously-received"/>
    <display value="Previously received"/>
    <definition value="Had received the antigen before this contact (the 'previously received' / 'not zero-dose' cell)."/>
  </concept>
  <concept>
    <code value="no-recall"/>
    <display value="No recall / no information"/>
    <definition value="Prior-dose status unknown — caregiver cannot recall and no record is available."/>
  </concept>
</CodeSystem>