Title: IMMZD2DTYellowfeverYellowFeverLogic Id: IMMZD2DTYellowfeverYellowFeverLogic Version: 0.2.0 Url: IMMZD2DTYellowfeverYellowFeverLogic Status: draft Type: system: http://terminology.hl7.org/CodeSystem/library-type code: logic-library Date: 2025-11-25 19:41:02+0000 Publisher: WHO Description: This library defines decision support logic for the IMMZ.D2.DT.Yellow fever decision table in the Immunization CPG Related Artifacts: Dependencies IMMZD2DTYellowfeverEncounterElements Parameters: Name Type Min Max In/Out Today date 0 1 In Patient Patient 0 1 Out Client is not due for yellow fever vaccination Case 1 boolean 0 1 Out Client is not due for yellow fever vaccination Case 2 boolean 0 1 Out Client is not due for yellow fever vaccination boolean 0 1 Out Client is not due for yellow fever vaccination Guidance string 0 1 Out Client is due for yellow fever vaccination boolean 0 1 Out Client is due for yellow fever vaccination Guidance string 0 1 Out Yellow fever immunization schedule is complete boolean 0 1 Out Yellow fever immunization schedule is complete Guidance string 0 1 Out Guidance string 0 1 Out Has Guidance boolean 0 1 Out Test Validation Resource 0 1 Out Content: text/cql /* * Library: IMMZD2DTYellowfeverYellowFeverLogic (IMMZ.D2.DT.Yellow fever) * Rule: Determine if the client is due for a yellow fever vaccination according to the national immunization schedule * Decision Table: IMMZ.D2.DT.Yellow fever * Trigger: IMMZ.D2 Determine required vaccination(s) in any */ library IMMZD2DTYellowfeverYellowFeverLogic using FHIR version '4.0.1' include FHIRHelpers version '4.0.1' include IMMZD2DTYellowfeverEncounterElements called Encounter parameter Today Date default Today() context Patient /* @dynamicValue: Guidance */ define "Guidance": case when "Client is not due for yellow fever vaccination" then "Client is not due for yellow fever vaccination Guidance" when "Client is due for yellow fever vaccination" then "Client is due for yellow fever vaccination Guidance" when "Yellow fever immunization schedule is complete" then "Yellow fever immunization schedule is complete Guidance" else '' end define "Has Guidance": "Guidance" is not null and "Guidance" != '' /* @output: Client is not due for yellow fever vaccination Case 1 @pseudocode: "Immunization recommendation status" = "Not due" */ define "Client is not due for yellow fever vaccination Case 1": Encounter."No yellow fever primary series doses were administered" and Encounter."Client's age is less than 9 months" /* @output: Client is not due for yellow fever vaccination Case 2 @pseudocode: "Immunization recommendation status" = "Not due" */ define "Client is not due for yellow fever vaccination Case 2": Encounter."No yellow fever primary series doses were administered" and Encounter."Client's age is more than or equal to 9 months" and Encounter."Live vaccine was administered in the past 4 weeks" /* @output: Client is not due for yellow fever vaccination @pseudocode: "Immunization recommendation status" = "Not due" */ define "Client is not due for yellow fever vaccination": "Client is not due for yellow fever vaccination Case 1" or "Client is not due for yellow fever vaccination Case 2" /* @output: Client is not due for yellow fever vaccination Guidance @guidance = Should not vaccinate client with yellow fever dose as client's age is less than 9 months. Check for any vaccines due and inform the caregiver of when to come back for the next dose. @guidance = Should not vaccinate client with yellow fever dose as live vaccine was administered in the past 4 weeks. Check for any vaccines due and inform the caregiver of when to come back for the first dose. */ define "Client is not due for yellow fever vaccination Guidance": case when "Client is not due for yellow fever vaccination Case 1" then 'Should not vaccinate client with yellow fever dose as client\'s age is less than 9 months. Check for any vaccines due and inform the caregiver of when to come back for the next dose.' when "Client is not due for yellow fever vaccination Case 2" then 'Should not vaccinate client with yellow fever dose as live vaccine was administered in the past 4 weeks. Check for any vaccines due and inform the caregiver of when to come back for the first dose.' else '' end /* @output: Client is due for yellow fever vaccination @pseudocode: "Immunization recommendation status" = "Due" */ define "Client is due for yellow fever vaccination": Encounter."No yellow fever primary series doses were administered" and Encounter."Client's age is more than or equal to 9 months" and Encounter."No live vaccine was administered in the past 4 weeks" /* @output: Client is due for yellow fever vaccination Guidance @guidance: Should vaccinate client with yellow fever dose as no yellow fever dose was administered, client is within appropriate age range and no live vaccine was administered in the past 4 weeks. Check for contraindications. */ define "Client is due for yellow fever vaccination Guidance": 'Should vaccinate client with yellow fever dose as no yellow fever dose was administered, client is within appropriate age range and no live vaccine was administered in the past 4 weeks. Check for contraindications.' /* @output: Yellow fever immunization schedule is complete @pseudocode: "Immunization recommendation status" = "Complete" "Completed the primary vaccination series" = TRUE (where "Vaccine type" = "Yellow fever vaccines") */ define "Yellow fever immunization schedule is complete": Encounter."One yellow fever primary series dose was administered" /* @output: Yellow fever immunization schedule is complete Guidance @guidance: Yellow fever immunization schedule is complete. One yellow fever primary series dose was administered. Check for any other vaccines due. */ define "Yellow fever immunization schedule is complete Guidance": 'Yellow fever immunization schedule is complete. One yellow fever primary series dose was administered. Check for any other vaccines due.' /* @test: Test expected results based on example patients */ define "Test Validation": case when Patient.id = 'Yellowfever07.2' then "Client is not due for yellow fever vaccination Case 1" and "Guidance" = 'Should not vaccinate client with yellow fever dose as client\'s age is less than 9 months. Check for any vaccines due and inform the caregiver of when to come back for the next dose.' when Patient.id = 'Yellowfever08.3' then "Client is not due for yellow fever vaccination Case 2" and "Guidance" = 'Should not vaccinate client with yellow fever dose as live vaccine was administered in the past 4 weeks. Check for any vaccines due and inform the caregiver of when to come back for the first dose.' when Patient.id = 'Yellowfever09.3' then "Client is due for yellow fever vaccination" and "Guidance" = 'Should vaccinate client with yellow fever dose as no yellow fever dose was administered, client is within appropriate age range and no live vaccine was administered in the past 4 weeks. Check for contraindications.' when Patient.id = 'Yellowfever10.1' then "Yellow fever immunization schedule is complete" and "Guidance" = 'Yellow fever immunization schedule is complete. One yellow fever primary series dose was administered. Check for any other vaccines due.' else 'No test case set' end Content: application/elm+xml Encoded data (57892 characters)
This library defines decision support logic for the IMMZ.D2.DT.Yellow fever decision table in the Immunization CPG
Client is not due for yellow fever vaccination Case 1
Client is not due for yellow fever vaccination Case 2
Client is not due for yellow fever vaccination
Client is not due for yellow fever vaccination Guidance
Client is due for yellow fever vaccination
Client is due for yellow fever vaccination Guidance
Yellow fever immunization schedule is complete
Yellow fever immunization schedule is complete Guidance