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

PlanDefinition: IMMZ.D18.S.Hepatitis B.Delayed start schedule

Official URL: http://smart.who.int/immunizations/PlanDefinition/IMMZD18SHepatitisBDelayedStart Version: 1.0.0
Draft as of 2026-10-02 Computable Name: IMMZD18SHepatitisBDelayedStart

IMMZ.D18.S.Hepatitis B.Delayed start schedule 3-dose schedule (no birth dose + 3 doses), delayed start

Id: IMMZD18SHepatitisBDelayedStart
Url: IMMZ.D18.S.Hepatitis B.Delayed start schedule
Version: 1.0.0
Title: IMMZ.D18.S.Hepatitis B.Delayed start schedule
Status: draft
Type:

system: http://terminology.hl7.org/CodeSystem/plan-definition-type

code: eca-rule

Date: 2026-10-02 09:40:20+0000
Publisher: WHO
Description:

IMMZ.D18.S.Hepatitis B.Delayed start schedule 3-dose schedule (no birth dose + 3 doses), delayed start
Knowledge Capability: computable
Related Artifacts:

References

  • ​

    WHO recommendations for routine immunization - summary tables (January 2025)
Libraries:
IMMZD18SHepatitisBDelayedStartLogic
Actions:
Hepatitis B dose 1: Provision of hepatitis B dose 1 Trigger event: Child's birth Trigger pseudo: Trigger date: "Date of birth" Create condition: If delayed or interrupted scheduling of vaccination for children, adolescents and adults, 3 doses are recommended, with the second dose administered at least 1 month after the first, and the third dose 6 months after the first dose.
If: Applicability: Hepatitis B dose 1 (Hepatitis B dose 1)
Then: Definition: IMMZ.D2.DT.CR
Dynamic Values:
status: ('active')
payload.contentString: (Hepatitis B 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' })
Hepatitis B dose 2: Provision of hepatitis B dose 2 Trigger event: First hepatitis B dose was administered Trigger pseudo: Count of vaccines administered (where "Vaccine type" = "Hepatitis B-containing vaccines") = 1 Trigger date: Latest "Date and time of vaccination" (where "Vaccine type" = "Hepatitis B-containing vaccines") Create condition: If delayed or interrupted scheduling of vaccination for children, adolescents and adults, 3 doses are recommended, with the second dose administered at least 1 month after the first, and the third dose 6 months after the first dose.
If: Applicability: Hepatitis B dose 2 (Hepatitis B dose 2)
Then: Definition: IMMZ.D2.DT.CR
Dynamic Values:
status: ('active')
payload.contentString: (Hepatitis B 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' })
Hepatitis B dose 3: Provision of hepatitis B dose 3 Trigger event: Second hepatitis B dose was administered Trigger pseudo: Count of vaccines administered (where "Vaccine type" = "Hepatitis B-containing vaccines") = 2 Trigger date: "Date and time of vaccination" (where "Vaccine type" = "Hepatitis B-containing vaccines" and "Dose number" = 1) Create condition: If delayed or interrupted scheduling of vaccination for children, adolescents and adults, 3 doses are recommended, with the second dose administered at least 1 month after the first, and the third dose 6 months after the first dose.
If: Applicability: Hepatitis B dose 3 (Hepatitis B dose 3)
Then: Definition: IMMZ.D2.DT.CR
Dynamic Values:
status: ('active')
payload.contentString: (Hepatitis B dose 3 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' })