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. For a full list of available versions, see the Directory of published versions

Library: IMMZD5DTHepatitisAEncounterElements

Official URL: http://smart.who.int/immunizations/Library/IMMZD5DTHepatitisAEncounterElements Version: 1.0.0
Draft as of 2026-10-02 Computable Name: IMMZD5DTHepatitisAEncounterElements

This library defines encounter-based elements for Hepatitis A used throughout the Immunization CPG

Title: IMMZD5DTHepatitisAEncounterElements
Id: IMMZD5DTHepatitisAEncounterElements
Version: 1.0.0
Url: IMMZD5DTHepatitisAEncounterElements
Status: draft
Type:

system: http://terminology.hl7.org/CodeSystem/library-type

code: logic-library

Date: 2026-10-02 09:52:12+0000
Publisher: WHO
Description:

This library defines encounter-based elements for Hepatitis A used throughout the Immunization CPG
Related Artifacts:

Dependencies
Parameters:
NameTypeMinMaxIn/Out
Todaydate01In
EncounterIdstring01In
PatientPatient01Out
Draft Medication Request for Hepatitis A doseMedicationRequest0*Out
The client is currently pregnantboolean01Out
The client is severely immunocompromisedboolean01Out
The client has a history of severe allergic reactionsboolean01Out
Content: text/cql

/*
  * Library: IMMZD5DTHepatitisAEncounterElements
  */
library IMMZD5DTHepatitisAEncounterElements

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 IMMZD5DTHepatitisAElements called HepatitisAElements

parameter Today Date default Today()
parameter EncounterId String

context Patient

/*
@internal: Draft Medication Request for Hepatitis A dose
*/
define "Draft Medication Request for Hepatitis A dose":
  Encounter."Draft Medication Request for Patient" MR
    where MR.medication in Concepts."Hepatitis A-containing vaccines"

/*
@input: The client is currently pregnant
@pseudocode: "Potential contraindications" = "Currently pregnant"
@code: The client is currently pregnant-52
@decision: IMMZ.D5.DT.Hepatitis A contraindications
*/
define "The client is currently pregnant":
  Encounter."The client is pregnant"

/*
@input: The client is severely immunocompromised
@pseudocode: "Potential contraindications" = "Severely immunocompromised"
@code: The client is severely immunocompromised-60
@decision: IMMZ.D5.DT.Hepatitis A contraindications
*/
define "The client is severely immunocompromised":
  Encounter."The client is severely immunocompromised"

/*
@input: The client has a history of severe allergic reactions
@pseudocode: '"Potential contraindications" = "Severe allergic reactions"
@code: The client has a history of severe allergic reactions-60
@decision: IMMZ.D5.DT.Hepatitis A contraindications
*/
define "The client has a history of severe allergic reactions":
  Encounter."The client has history of severe allergic reactions"
Content: application/elm+xml
Encoded data (19032 characters)