WHO Immunization Implementation Guide
0.2.0 - ci-build

WHO Immunization Implementation Guide, published by WHO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/smart-immunizations/ and changes regularly. See the Directory of published versions

Library: IMMZD2DTRabiesPrEPLogic

Official URL: http://smart.who.int/immunizations/Library/IMMZD2DTRabiesPrEPLogic Version: 0.2.0
Draft as of 2025-08-08 Computable Name: IMMZD2DTRabiesPrEPLogic

This library defines decision support logic for the IMMZ.D2.DT.Rabies decision table in the Immunization CPG

Title: IMMZD2DTRabiesPrEPLogic
Id: IMMZD2DTRabiesPrEPLogic
Version: 0.2.0
Url: IMMZD2DTRabiesPrEPLogic
Status: draft
Type:

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

code: logic-library

Date: 2025-08-08 19:12:11+0000
Publisher: WHO
Description:

This library defines decision support logic for the IMMZ.D2.DT.Rabies decision table in the Immunization CPG

Related Artifacts:

Dependencies

Parameters:
NameTypeMinMaxIn/Out
Todaydate01In
PatientPatient01Out
Client is due for rabies vaccination Case 1boolean01Out
Client is due for rabies vaccination Case 2boolean01Out
Client is due for rabies vaccinationboolean01Out
Client is due for rabies vaccination Guidancestring01Out
Client is not due for rabies vaccinationboolean01Out
Client is not due for rabies vaccination Guidancestring01Out
Rabies immunization schedule is completeboolean01Out
Rabies immunization schedule is complete Guidancestring01Out
Guidancestring01Out
Has Guidanceboolean01Out
Test ValidationResource01Out
Content: text/cql

/*
 * Library: IMMZD2DTRabiesPrEPLogic (IMMZ.D2.DT.Rabies)
 * Rule: Determine if the client is due for a rabies vaccination according to the national immunization schedule
 * Decision Table: Pre-exposure prophylaxis (PrEP), 2-dose scheme; high risk of rabies virus exposure
 * Trigger: IMMZ.D2 Determine required vaccination(s) if any
 */
library IMMZD2DTRabiesPrEPLogic

using FHIR version '4.0.1'
include FHIRHelpers version '4.0.1'

include IMMZD2DTRabiesEncounterElements called Encounter

parameter Today Date default Today()

context Patient


/*
@dynamicValue: Guidance
*/
define "Guidance":
  case
    when "Client is due for rabies vaccination" then "Client is due for rabies vaccination Guidance"
    when "Client is not due for rabies vaccination" then "Client is not due for rabies vaccination Guidance"
    when "Rabies immunization schedule is complete" then "Rabies immunization schedule is complete Guidance"
    else ''
  end

define "Has Guidance":
  "Guidance" is not null and "Guidance" != ''

/*
@output: Client is due for rabies vaccination Case 1
@pseudocode: "Immunization recommendation status" = "Due"
*/
define "Client is due for rabies vaccination Case 1":
  Encounter."No rabies primary series doses were administered"

/*
@output: Client is due for rabies vaccination Case 2
@pseudocode: "Immunization recommendation status" = "Due"
*/
define "Client is due for rabies vaccination Case 2":
  Encounter."One rabies primary series doses were administered"
    and Encounter."The latest rabies dose was administered more than 7 days ago"

/*
@output: Client is due for rabies vaccination
@pseudocode: "Immunization recommendation status" = "Due"
*/
define "Client is due for rabies vaccination":
  "Client is due for rabies vaccination Case 1"
    or "Client is due for rabies vaccination Case 2"

/*
@output: Client is due for rabies vaccination Guidance
@guidance: Should vaccinate client with first rabies dose as no rabies doses were administered and client is at high risk of exposure. 
Check for contraindications.
@guidance: Should vaccinate client with second rabies dose as the latest rabies dose was administerd 7 or more days ago. 
Check for contraindications.
*/
define "Client is due for rabies vaccination Guidance":
  case
    when "Client is due for rabies vaccination Case 1" then 'Should vaccinate client with first rabies dose as no rabies doses were administered and client is at high risk of exposure. 
Check for contraindications.'
    when "Client is due for rabies vaccination Case 2" then 'Should vaccinate client with second rabies dose as the latest rabies dose was administerd 7 or more days ago. 
Check for contraindications.'
    else ''
  end

/*
@output: Client is not due for rabies vaccination
@pseudocode: "Immunization recommendation status" = "Not due"
*/
define "Client is not due for rabies vaccination":
  Encounter."One rabies primary series doses were administered"
    and Encounter."The latest rabies dose was administered less than 7 days ago"

/*
@output: Client is not due for rabies vaccination Guidance
@guidance: Should not vaccinate client with second rabies dose as the latest rabies dose was administered less than 7 days ago. 
Check for any other vaccines due and inform the caregiver of when to come back for the second dose.
*/
define "Client is not due for rabies vaccination Guidance":
  'Should not vaccinate client with second rabies dose as the latest rabies dose was administered less than 7 days ago. 
Check for any other vaccines due and inform the caregiver of when to come back for the second dose.'

/*
@output: Rabies immunization schedule is complete
@pseudocode: "Immunization recommendation status" = "Complete"
*/
define "Rabies immunization schedule is complete":
  Encounter."Two rabies primary series doses were administered"

/*
@output: Rabies immunization schedule is complete Guidance
@guidance: Rabies immunization schedule is complete. Two rabies primary series doses were administered. 
Check for any other vaccines due.
*/
define "Rabies immunization schedule is complete Guidance":
  'Rabies immunization schedule is complete. Two rabies primary series doses were administered. 
Check for any other vaccines due.'


/*
@test: Test expected results based on example patients
*/
define "Test Validation":
  case
    when Patient.id = '08.1' then "Client is due for rabies vaccination Case 1" and "Guidance" = 'Should vaccinate client with first rabies dose as no rabies doses were administered and client is at high risk of exposure. 
Check for contraindications.'
    when Patient.id = '09.12' then "Client is not due for rabies vaccination" and "Guidance" = 'Should not vaccinate client with second rabies dose as the latest rabies dose was administered less than 7 days ago. 
Check for any other vaccines due and inform the caregiver of when to come back for the second dose.'
    when Patient.id = '10.12' then "Client is due for rabies vaccination Case 2" and "Guidance" = 'Should vaccinate client with second rabies dose as the latest rabies dose was administerd 7 or more days ago. 
Check for contraindications.'
    when Patient.id = '11.1' then "Rabies immunization schedule is complete" and "Guidance" = 'Rabies immunization schedule is complete. Two rabies primary series doses were administered. 
Check for any other vaccines due.'
    else 'No test case set'
  end
Content: application/elm+xml
Encoded data (53872 characters)