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Emerging Standards

CDS Schedule Source

Identifies the schedule authority responsible for an immunization evaluation or recommendation, such as the Advisory Committee on Immunization Practices.

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StageDraft PathWorking on Now PolicyNot currently supported by CDC policy Topic typeStandard Followers24

Stage and Path

Stage

Draft

Draft topics are early-stage ideas gathering initial interest and problem framing.

Path

Working on Now

The next meaningful work is understood, owned, and moving forward without a material constraint.

Overview

Supports communicating which schedule authority (such as ACIP or others) produced a given immunization recommendation. This allows IIS to return recommendations based on multiple schedules or jurisdictions. It is typically conveyed within HL7 v2 RSP messages as part of CDS output. Interest is growing where non-ACIP schedules are relevant, though adoption is still limited.

Coming soon

Support for source material, diagrams, and supporting notes is coming in a future update.

Recent Outcomes

Working Consensus Knowledge Base Definition - an identifiable, executable set of immunization decision support rules that a CDS engine selects and applies as a single coherent unit for a forecast request. When selected, that specific set is executed and can be identified in the response as the set actually used. A CDS engine may support multiple Knowledge Bases, and each may incorporate guidance from multiple Schedule Authorities and local adaptations, but each single forecast execution uses only one Knowledge Base. Rule authorship, governance, documentation, and provenance are outside the scope of this concept. Immunization Focus Group Aug 14, 2026 View in Agenda

Meetings

MeetingAgendaPresenter(s)
Immunization Focus Group
Sep 11, 2026
Discuss generally what has been decided, the current concept, and what needs to be discussed.
Look at current JIRA tickets: https://jira.hl7.org/browse/FHIR-57247 https://jira.hl7.org/browse/FHIR-56990 https://jira.hl7.org/browse/FHIR-56989
Notes
  • Discussed concept in the previous item. We will skip this item for now but will provide an update on this next meeting when we have a better definition for CDS Schedule Source.
Nathan Bunker
Immunization Focus Group
Aug 14, 2026
Start discussion on a universal system for identifying schedule source. This is the identification of expert groups at the international, country, or sub-country level that define immunization schedules for use in practice.
Notes
  • Knowledge Base
    • Defined - an identifiable, executable set of immunization decision support rules that a CDS engine selects and applies as a single coherent unit for a forecast request. When selected, that specific set is executed and can be identified in the response as the set actually used. A CDS engine may support multiple Knowledge Bases, and each may incorporate guidance from multiple Schedule Authorities and local adaptations, but each single forecast execution uses only one Knowledge Base. Rule authorship, governance, documentation, and provenance are outside the scope of this concept.
    • what's sitting in the software
    • Example - AL school immunization requirements
    • One coherent set of values
    • "Decision support knowledge base"
    • Actual vaccine rules
    • Example - "cool hep. B predictor"
    • Based upon one or more schedule authorities
  • Schedule authority
    • Who is making the language
    • Where the knowledge base came from
    • Defined - an organization or body that publishes immunization guidance intended to inform vaccination recommendations. A Schedule Authority may be associated with a federal or state government, a professional organization, an international organization, or another recognized source of guidance. This concept does not define who may serve as a Schedule Authority or assess the validity, authority, or jurisdiction of its guidance; it provides a way to identify the source whose guidance a recommendation is intended to follow.
    • Examples: ACIP, AAP
    • More discussion September 11th
Outcomes
  • Knowledge Base Definition - an identifiable, executable set of immunization decision support rules that a CDS engine selects and applies as a single coherent unit for a forecast request. When selected, that specific set is executed and can be identified in the response as the set actually used. A CDS engine may support multiple Knowledge Bases, and each may incorporate guidance from multiple Schedule Authorities and local adaptations, but each single forecast execution uses only one Knowledge Base. Rule authorship, governance, documentation, and provenance are outside the scope of this concept.
Nathan Bunker
Immunization Focus Group
Jun 26, 2026
Provide update on progress made between AIRA and HLN and discuss schedule authority suport.
Nathan Bunker
Erin Roche

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Related Topics

CDS Shared Decision Support (SCDM)related toOpen
CDS Response Improvements (RSP)related toOpen
National Immunization Technical Advisory Groupsrelated toOpen

Included In

Immunization Focus Group (IFG)
Topic ID: 25
Standard Not currently supported by CDC policy Public Read-only view