Immunization Calculation Engine (ICE)

HLN Updates the Immunization Calculation Engine with Clinical Refinements and Expanded User Options

HLN has released ICE v2.58.1, bringing key clinical logic updates to DTP, Meningococcal B, Pneumococcal, and Zoster, alongside new system configuration options in Hepatitis B and Polio. Additionally, schedule authority attribution information (e.g., ‘AAP’) can now be included as an optional output in ICE forecasts. See the new logic in action using the free CDS Insight demonstration and testing tool.

The Immunization Calculation Engine (ICE) Achieves Complete Validation in AIRA’s Measurement and Improvement Initiative

Immunization Calculation Engine (ICE) just earned Complete Validation in the AIRA Measurement and Improvement Initiative — the first open-source immunization forecaster to reach this milestone. This confirms ICE meets national standards across all clinical decision support measures tested. Try ICE using CDS Insight, a free testing tool.

HLN Releases Immunization Calculation Engine with Hepatitis B Bug Fix

HLN has released ICE v2.57.2, a targeted fix for a Hepatitis B date calculation issue introduced in v2.57.1. The update corrects overdue date logic for dose 4 in the Hep B 4-dose Series. Download the latest release and see the Release Notes for full details.

HLN Updates the Immunization Calculation Engine with Clinical and Technical Enhancements

HLN released ICE v2.57.1 with updated logic across several vaccine groups to improve alignment with guidelines and expand vaccine support. This release also introduces a new feature, return of vaccine group wiki URLs, making it much easier to audit and map ICE outputs back to their underlying rules. See the new logic in action using the free CDS Insight demonstration and testing tool.

AIRA 2026 National Meeting: Community, Collaboration and Commitment

Again, AIRA’s 2026 National Meeting did not disappoint. Read HLN’s perspective on what makes this forum so special.

HLN Releases ICE with Hepatitis B and Polio Logic Updates

HLN’s latest ICE release updates clinical logic for Hepatitis B and Polio, including a new 4-dose Hep B series and added support for fractional-dose poliovirus vaccine (fIPV). Download ICE v2.56.1 and test the updates live in CDS Insight.

HLN Consulting Launches CDS Insight: A New Tool for Testing Immunization Logic

Validating immunization logic just got easier. CDS Insight is a new interactive platform developed by HLN Consulting to support testing and demonstration of the Immunization Calculation Engine (ICE). Create a free account and start validating forecasting recommendations today.

The AIRA 2026 National Meeting is Coming Soon…to Pittsburgh, PA

Come hear about everything that is happening within the IIS Community, including AI, at the AIRA 2026 National Meeting in Pittsburgh, PA. Stop by our booth #8 or come hear our presentations, because together, we give public health a very loud voice!

HLN Updates the Immunization Calculation Engine and Launches CDS Insight, a New Testing Tool

HLN released ICE v2.55.1 with updated clinical logic for Hepatitis A, Hepatitis B, Polio, and COVID-19 vaccines, plus faster performance and improved deployment flexibility. HLN is also excited to announce CDS Insight, a new interactive platform for testing ICE logic in real time. Register for a free account today.

CMS Immunization Measures Updates to the 2026 Child and Adult Core Sets

BY Marcey Propp and Lilly Kan ON February 25, 2026 Immunization Information System (IIS) | Clinical Decision Support (CDS) | Immunization Calculation Engine (ICE) | Public Health

Recent changes by the Centers for Medicare & Medicaid Services (CMS) in immunization quality measures in the Child and Adult Core Sets fundamentally jeopardize the outlook for vaccine equity and mark a pivotal moment for public health. Read why a jurisdiction’s Immunization Information System (IIS) is now a more vital asset in data-driven vaccine decision making.