Id: IMMZD18SMeningococcalQuadrivalentConjugateVaccines2Doses Url: IMMZ.D18.S.Meningococcal.Quadrivalent conjugate vaccines 2-dose schedule Version: 0.2.0 Title: IMMZ.D18.S.Meningococcal.Quadrivalent conjugate vaccines 2-dose schedule Status: draft Type: system: http://terminology.hl7.org/CodeSystem/plan-definition-type code: eca-rule Date: 2026-03-03 13:07:11+0000 Publisher: WHO Description: IMMZ.D18.S.Meningococcal.Quadrivalent conjugate vaccines 2-dose schedule Quadrivalent conjugate vaccine (A,C,W135,Y-D), 2-dose schedule Knowledge Capability: computable Related Artifacts: References WHO recommendations for routine immunization - summary tables (January 2025) Libraries: IMMZD18SMeningococcalQuadrivalentConjugateVaccines2DosesLogic Actions: Meningococcal dose 1: Provision of the meningococcal dose 1 Trigger event: Child's birth Trigger pseudo: Trigger date: "Date of birth" Create condition: A,C,W135,Y-D is also licensed for children aged 9–23 months and given as a 2-dose series 3 months apart, beginning at 9 months of age. If: Applicability: Meningococcal dose 1 (Meningococcal dose 1) Then: Definition: IMMZ.D2.DT.CR Dynamic Values: status: ('active') payload.contentString: (Meningococcal dose 1 Create) category.coding: (Code { system: 'http://terminology.hl7.org/CodeSystem/communication-category', code: 'alert' }) priority: (Code { system: 'http://hl7.org/fhir/request-priority', code: 'routine' }) Meningococcal dose 2: Provision of the meningococcal dose 2 Trigger event: First meningococcal dose from the primary series was administered Trigger pseudo: Count of vaccines administered (where "Vaccine type" = "Meningococcal vaccines") = 1 Trigger date: "Date and time of vaccination" (where "Vaccine type" = "Meningococcal vaccines") Create condition: A,C,W135,Y-D is also licensed for children aged 9–23 months and given as a 2-dose series 3 months apart, beginning at 9 months of age. If: Applicability: Meningococcal dose 2 (Meningococcal dose 2) Then: Definition: IMMZ.D2.DT.CR Dynamic Values: status: ('active') payload.contentString: (Meningococcal dose 2 Create) category.coding: (Code { system: 'http://terminology.hl7.org/CodeSystem/communication-category', code: 'alert' }) priority: (Code { system: 'http://hl7.org/fhir/request-priority', code: 'routine' })
/** * @dataElement All Doses Administered to Patient */ define "Doses Administered to Patient": [Immunization] I where I.status = 'completed' and I.isSubpotent is not true
/** * @dataElement All Doses Administered to Patient */ define "Doses Administered to Patient": Elements."Doses Administered to Patient" I where I.occurrence.toInterval() same day or before Today
Meningococcal Doses Administered to Patient
/* @internal: Meningococcal containing Doses Administered to Patient */ define "Meningococcal Doses Administered to Patient": Encounter."Doses Administered to Patient" I where I.vaccineCode in Concepts."Meningococcal vaccines"
Meningococcal Primary Series Doses Administered to Patient
/* @internal: Meningococcal containing Doses Administered to Patient that are in the Primary series */ define "Meningococcal Primary Series Doses Administered to Patient": "Meningococcal Doses Administered to Patient".seriesPrimary()
Number of Meningococcal Primary Series Doses Administered
/* @internal: Number of Meningococcal Primary Series doses */ define "Number of Meningococcal Primary Series Doses Administered": Count("Meningococcal Primary Series Doses Administered to Patient")
One meningococcal primary series dose was administered
/* @input: One meningococcal primary series dose was administered @pseudocode: Count of vaccines administered (where "Vaccine type" = "Meningococcal vaccines" and "Type of dose" = "Primary series") = 1 @code: One meningococcal primary series dose was administered-122 @decision: IMMZ.D2.DT.Meningococcal.MenA conjugate vaccine 1 dose: MenA conjugate vaccine, 1-dose schedule @decision: IMMZ.D2.DT.Meningococcal.MenA conjugate vaccine 2 doses: MenA conjugate vaccine, 2-dose schedule (specific context where there is a compelling reason to vaccinate infants aged under 9 months) @decision: IMMZ.D2.DT.Meningococcal.Monovalent MenC conjugate vaccine: Monovalent MenC conjugate vaccine schedule @decision: IMMZ.D2.DT.Meningococcal.Quadrivalent conjugate vaccines 1 dose: Quadrivalent conjugate vaccines (A,C,W135,Y-CRM), 1-dose schedule @decision: IMMZ.D2.DT.Meningococcal.Quadrivalent conjugate vaccines 2 doses: Quadrivalent conjugate vaccines (A,C,W135,Y-D), 2-dose schedule @decision: IMMZ.D2.DT.Meningococcal.Polysaccharide vaccines: Polysaccharide vaccines schedule (Polysaccharide vaccines can be used to control outbreaks in countries where limited economic resources or insufficient supply restrict the use of meningococcal conjugate vaccines) */ define "One meningococcal primary series dose was administered": "Number of Meningococcal Primary Series Doses Administered" = 1
First meningococcal dose from the primary series was administered
/* @complete: First meningococcal dose from the primary series was administered @pseudocode: Count of vaccines administered (where "Vaccine type" = "Meningococcal vaccines") = 1 */ define "First meningococcal dose from the primary series was administered": Encounter."One meningococcal primary series dose was administered"
Date of First Primary Series Meningococcal Dose
/* @internal: Date of First Primary Series Meningococcal Dose */ define "Date of First Primary Series Meningococcal Dose": date from start of "Meningococcal Primary Series Doses Administered to Patient".earliest().occurrence.toInterval()
Client's age was less than or equal to 23 months when the primary series was started
/* @input: Client's age was less than or equal to 23 months when the primary series was started @pseudocode: "Date and time of vaccination" (where "Vaccine type" = "Meningococcal vaccines") - "Date of birth" ≤ 23 months @code: Client's age was less than or equal to 23 months when the primary series was started-110 @decision: IMMZ.D2.DT.Meningococcal.Quadrivalent conjugate vaccines 2 doses: Quadrivalent conjugate vaccines (A,C,W135,Y-D), 2-dose schedule */ define "Client's age was less than or equal to 23 months when the primary series was started": AgeInMonthsAt("Date of First Primary Series Meningococcal Dose") <= 23
Two meningococcal primary series doses were administered
/* @input: Two meningococcal primary series doses were administered @pseudocode: Count of vaccines administered (where "Vaccine type" = "Meningococcal vaccines" and "Type of dose" = "Primary series") = 2 @code: Two meningococcal primary series doses were administered-122 @decision: IMMZ.D2.DT.Meningococcal.MenA conjugate vaccine 2 doses: MenA conjugate vaccine, 2-dose schedule (specific context where there is a compelling reason to vaccinate infants aged under 9 months) @decision: IMMZ.D2.DT.Meningococcal.Monovalent MenC conjugate vaccine: Monovalent MenC conjugate vaccine schedule @decision: IMMZ.D2.DT.Meningococcal.Quadrivalent conjugate vaccines 2 doses: Quadrivalent conjugate vaccines (A,C,W135,Y-D), 2-dose schedule */ define "Two meningococcal primary series doses were administered": "Number of Meningococcal Primary Series Doses Administered" = 2
Second meningococcal dose from the primary series was administered. The primary series has been completed
/* @complete: Second meningococcal dose from the primary series was administered. The primary series has been completed @pseudocode: "Completed the primary vaccination series" (where "Vaccine type" = "Meningococcal vaccines") = TRUE */ define "Second meningococcal dose from the primary series was administered. The primary series has been completed": Encounter."Two meningococcal primary series doses were administered"
/* @output: Meningococcal dose 2 @description: Provision of the meningococcal dose 2 @trigger: First meningococcal dose from the primary series was administered @pseudo: Count of vaccines administered (where "Vaccine type" = "Meningococcal vaccines") = 1 @triggerDate: "Date and time of vaccination" (where "Vaccine type" = "Meningococcal vaccines") */ define "Meningococcal dose 2": "First meningococcal dose from the primary series was administered" and Encounter."Client's age was less than or equal to 23 months when the primary series was started" and not "Second meningococcal dose from the primary series was administered. The primary series has been completed"
No meningococcal primary series dose was administered
/* @input: No meningococcal primary series dose was administered @pseudocode: Count of vaccines administered (where "Vaccine type" = "Meningococcal vaccines" and "Type of dose" = "Primary series") = 0 @code: No meningococcal primary series dose was administered-122 @decision: IMMZ.D2.DT.Meningococcal.MenA conjugate vaccine 1 dose: MenA conjugate vaccine, 1-dose schedule @decision: IMMZ.D2.DT.Meningococcal.MenA conjugate vaccine 2 doses: MenA conjugate vaccine, 2-dose schedule (specific context where there is a compelling reason to vaccinate infants aged under 9 months) @decision: IMMZ.D2.DT.Meningococcal.Monovalent MenC conjugate vaccine: Monovalent MenC conjugate vaccine schedule @decision: IMMZ.D2.DT.Meningococcal.Quadrivalent conjugate vaccines 1 dose: Quadrivalent conjugate vaccines (A,C,W135,Y-CRM), 1-dose schedule @decision: IMMZ.D2.DT.Meningococcal.Quadrivalent conjugate vaccines 2 doses: Quadrivalent conjugate vaccines (A,C,W135,Y-D), 2-dose schedule @decision: IMMZ.D2.DT.Meningococcal.Polysaccharide vaccines: Polysaccharide vaccines schedule (Polysaccharide vaccines can be used to control outbreaks in countries where limited economic resources or insufficient supply restrict the use of meningococcal conjugate vaccines) */ define "No meningococcal primary series dose was administered": "Number of Meningococcal Primary Series Doses Administered" = 0
/* @dynamicValue: Meningococcal dose 1 Expiration @pseudocode: "Date of birth" + 23 months */ define "Meningococcal dose 1 Expiration": Patient.birthDate + 23 months
/* @output: Meningococcal dose 1 @description: Provision of the meningococcal dose 1 @trigger: Child's birth @pseudo: @triggerDate: "Date of birth" */ define "Meningococcal dose 1": Encounter."No meningococcal primary series dose was administered" and "Meningococcal dose 1 Expiration" after day of Today and not "First meningococcal dose from the primary series was administered"
/* @dynamicValue: Meningococcal dose 1 Due Date @pseudocode: "Date of birth" + 9 months */ define "Meningococcal dose 1 Due Date": if "Meningococcal dose 1" then Patient.birthDate + 9 months else null
/* @output: Meningococcal dose 1 Create @create: A,C,W135,Y-D is also licensed for children aged 9–23 months and given as a 2-dose series 3 months apart, beginning at 9 months of age. */ define "Meningococcal dose 1 Create": if "Meningococcal dose 1" then 'A,C,W135,Y-D is also licensed for children aged 9–23 months and given as a 2-dose series 3 months apart, beginning at 9 months of age.' + ' Due Date: ' + ToString("Meningococcal dose 1 Due Date") + ' Expiration: ' + ToString("Meningococcal dose 1 Expiration") else ''
Date of Latest Primary Meningococcal Dose
/* @internal: Date of Latest Primary Meningococcal Dose */ define "Date of Latest Primary Meningococcal Dose": date from start of "Meningococcal Primary Series Doses Administered to Patient".mostRecent().occurrence.toInterval()
/* @dynamicValue: Meningococcal dose 2 Due Date @pseudocode: "Date and time of vaccination" (where "Vaccine type" = "Meningococcal vaccines") + 3 months */ define "Meningococcal dose 2 Due Date": if "Meningococcal dose 2" then Encounter."Date of Latest Primary Meningococcal Dose" + 3 months else null
/* @output: Meningococcal dose 2 Create @create: A,C,W135,Y-D is also licensed for children aged 9–23 months and given as a 2-dose series 3 months apart, beginning at 9 months of age. */ define "Meningococcal dose 2 Create": if "Meningococcal dose 2" then 'A,C,W135,Y-D is also licensed for children aged 9–23 months and given as a 2-dose series 3 months apart, beginning at 9 months of age.' + ' Due Date: ' + ToString("Meningococcal dose 2 Due Date") else ''
/** * @description: Gets the doses from the primary series */ define fluent function seriesPrimary(immunizations List<Immunization>): immunizations I where exists( I.protocolApplied pa where pa.series = 'Primary series' )
define function ToString(value string): value.value
define function ToString(value ImmunizationStatus): value.value
define function ToBoolean(value boolean): value.value
define function ToConcept(concept FHIR.CodeableConcept): if concept is null then null else System.Concept { codes: concept.coding C return ToCode(C), display: concept.text.value }
define function ToCode(coding FHIR.Coding): if coding is null then null else System.Code { code: coding.code.value, system: coding.system.value, version: coding.version.value, display: coding.display.value }
define fluent function earliest(immunizations List<Immunization>): First( immunizations I sort by start of occurrence.toInterval() )
define function ToDate(value date): value.value
define fluent function mostRecent(immunizations List<Immunization>): Last( immunizations I sort by start of occurrence.toInterval() )
IMMZ.D18.S.Meningococcal.Quadrivalent conjugate vaccines 2-dose schedule
IMMZ.D18.S.Meningococcal.Quadrivalent conjugate vaccines 2-dose schedule Quadrivalent conjugate vaccine (A,C,W135,Y-D), 2-dose schedule
WHO recommendations for routine immunization - summary tables (January 2025)
Provision of the meningococcal dose 1 Trigger event: Child's birth Trigger pseudo: Trigger date: "Date of birth" Create condition: A,C,W135,Y-D is also licensed for children aged 9–23 months and given as a 2-dose series 3 months apart, beginning at 9 months of age.
Code { system: 'http://terminology.hl7.org/CodeSystem/communication-category', code: 'alert' }
Code { system: 'http://hl7.org/fhir/request-priority', code: 'routine' }
Provision of the meningococcal dose 2 Trigger event: First meningococcal dose from the primary series was administered Trigger pseudo: Count of vaccines administered (where "Vaccine type" = "Meningococcal vaccines") = 1 Trigger date: "Date and time of vaccination" (where "Vaccine type" = "Meningococcal vaccines") Create condition: A,C,W135,Y-D is also licensed for children aged 9–23 months and given as a 2-dose series 3 months apart, beginning at 9 months of age.