WHO Immunization Implementation Guide
1.0.0 - release

This page is part of the Immunizations (v1.0.0: Release) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Library: IMMZD2DTSeasonalinfluenzaEncounterElements

Official URL: http://smart.who.int/immunizations/Library/IMMZD2DTSeasonalinfluenzaEncounterElements Version: 1.0.0
Draft as of 2026-10-02 Computable Name: IMMZD2DTSeasonalinfluenzaEncounterElements

This library defines encounter-based elements for Seasonal influenza used throughout the Immunization CPG

Exception parsing generated Narrative (see /tmp/liquid-fa8661db-778b-48e1-8346-d2bb08a49142.html): Unable to Parse HTML - node 'code' has unexpected content ' ' (last text = ' /* * Library: IMMZD2DTSeasonalinfluenzaEncounterElements */ library IMMZD2DTSeasonalinfluenzaEncounterElements using FHIR version '4.0.1' include FHIRHelpers version '4.0.1' include WHOConcepts include WHOCommon called WC include WHOElements called WE include IMMZCommon called Common include IMMZConcepts called Concepts include IMMZEncounterElements called Encounter include IMMZD2DTSeasonalinfluenzaElements called SeasonalinfluenzaElements parameter Today Date default Today() parameter EncounterId String context Patient /* @internal: Seasonal influenza containing Doses Administered to Patient */ define "Seasonal influenza Doses Administered to Patient": Encounter."Doses Administered to Patient" I where I.vaccineCode in Concepts."Seasonal influenza vaccines" /* @internal: Seasonal influenza containing Doses Administered to Patient that are in the Primary series */ define "Seasonal influenza Primary Series Doses Administered to Patient": "Seasonal influenza Doses Administered to Patient".seriesPrimary() /* @internal: Number of Seasonal influenza Primary Series doses */ define "Number of Seasonal influenza Primary Series Doses Administered": Count("Seasonal influenza Primary Series Doses Administered to Patient") /* @input: Client's age is less than 6 months @pseudocode: Today's date − "Date of birth" ' at line 252 column 46