BY Erin Roche and Daryl Chertcoff ON Immunization Information System (IIS) | AIRA | CDC | Clinical Decision Support (CDS) | EHR/PHR | Immunization Calculation Engine (ICE) | Open Source
The Immunization Calculation Engine (ICE) Advisory Group convened on September 29, 2025, with over 30 experts across public health, healthcare, and health IT. Discussion centered on immunization decision support guidelines, including ACIP versus alternative evidence-based sources, and the operational and technical challenges created by a shifting immunization landscape.
Read more >BY Erin Roche and Daryl Chertcoff ON Immunization Information System (IIS) | AIRA | CDC | Clinical Decision Support (CDS) | EHR/PHR | Immunization Calculation Engine (ICE) | Open Source
HLN Consulting is launching the Immunization Calculation Engine (ICE) Advisory Group to ensure its open-source immunization decision support software keeps pace with evolving vaccine recommendations. The group brings together public health, IIS, EHR, and provider leaders to guide ICE’s clinical alignment, clarify complex recommendations, and share implementation feedback.
Read more >BY Erin Roche and Daryl Chertcoff ON Immunization Information System (IIS) | AIRA | CDC | Clinical Decision Support (CDS) | EHR/PHR | Immunization Calculation Engine (ICE) | Open Source
HLN has released ICE version 2.48.1 with key updates for influenza and RSV vaccines. This release adds support for new CVX codes, including the self/caregiver-administered influenza vaccine and the new clesrovimab monoclonal antibody product for prevention of infant RSV. Additionally, this release supports the expanded risk-based recommendation for adult RSV in alignment with the latest immunization recommendations.
Read more >BY Erin Roche and Daryl Chertcoff ON Immunization Information System (IIS) | AIRA | CDC | Clinical Decision Support (CDS) | EHR/PHR | Immunization Calculation Engine (ICE) | Open Source
Immunization guidelines are starting to diverge, with the CDC and AAP issuing conflicting COVID-19 recommendations for children. This blog explores what this split might mean for public health, clinical decision support, and the future of the open-source Immunization Calculation Engine (ICE).
Read more >BY Erin Roche and Daryl Chertcoff ON Immunization Information System (IIS) | AIRA | CDC | Clinical Decision Support (CDS) | EHR/PHR | Immunization Calculation Engine (ICE) | Open Source
With ACIP processes shifting and vaccine guidelines evolving, health care providers and public health need to determine what immunizations to recommend. This blog explores how collaboration on the open-source Immunization Calculation Engine (ICE) software can help ensure alignment across stakeholders in providing clear immunization decision support based on clinical best practices.
Read more >BY Erin Roche and Daryl Chertcoff ON Immunization Information System (IIS) | AIRA | CDC | Clinical Decision Support (CDS) | EHR/PHR | Immunization Calculation Engine (ICE) | Open Source
HLN released a new version of the Immunization Calculation Engine (ICE) software, bringing important updates and enhancements to ICE vaccine evaluation and forecasting.
Read more >BY Erin Roche and Daryl Chertcoff ON Immunization Information System (IIS) | AIRA | CDC | Clinical Decision Support (CDS) | EHR/PHR | Immunization Calculation Engine (ICE) | Open Source
On April 26, 2024, HLN released a new version of the Immunization Calculation Engine (ICE) supporting several vaccines. ICE is a state-of-the-art open source software system that provides clinical decision support for immunizations for use in Immunization Information Systems (IIS), Electronic Health Record (EHR), and Personal Health Record (PHR) Systems.
Read more >BY Marcey Propp and Aasa Dahlberg Schmit ON Immunization Information System (IIS) | DM | Events | FHIR | HIE & Interoperability | HIMSS | Immunization Calculation Engine (ICE) | Open Source | Public Health
HLN demonstrated two of its solutions for IIS interoperability and immunization decision support at the HIMSS25 Conference in Las Vegas. Our efforts related to FHIR for IIS and our award-winning open source Immunization Calculation Engine (ICE) were presented as part of the Interop+SMART Experience Pavilion. Thankfully, what happens in Vegas can be shared with you!
Read more >BY Aasa Dahlberg Schmit and Marcey Propp ON Immunization Information System (IIS) | DM | Events | FHIR | HIE & Interoperability | HIMSS | Immunization Calculation Engine (ICE) | Open Source | Public Health | TEFCA
HLN shares its experience in attending the HIMSS25 conference in Las Vegas, from being an elite sponsor of the Public Health Data Modernization Pre-conference Forum to providing reflections on the conference from a public health perspective.
Read more >BY Daryl Chertcoff and Erin Roche ON Immunization Information System (IIS) | AIRA | CDC | Clinical Decision Support (CDS) | EHR/PHR | Immunization Calculation Engine (ICE) | Open Source
On February 17, 2024, HLN released a new version (v2.45.2) of the Immunization Calculation Engine (ICE) in support of updates to the COVID-19 vaccine. ICE is a state-of-the-art open source software system that provides clinical decision support for immunizations for use in Immunization Information Systems (IIS), Electronic Health Record (EHR), and Personal Health Record (PHR) Systems.
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