On May 31, 2019, HLN released a new version (v1.17.1) of the Immunization Calculation Engine (ICE). 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.

This version includes:

• Improvements to handling of duplicate shots. Duplicate shots typically represent "bad data" that has been passed into the ICE service. For two or more duplicate shots on the same day, ICE will select the vaccine that makes the most sense for the circumstance. See Two Shots, Same Vaccine Group, Same Day Exception Rules for the specifics on how this is handled for each vaccine group.
• Logic updates to DTP, HPV, and Zoster vaccine groups. See Release Notes for details.
• Pneumococcal interval fix in the Adult Series where (under certain circumstances) the PPSV to PPSV 5 year recommended interval is not being applied when there is a valid PCV shot in between the PPSV shots.

The full software release is available for download at https://cdsframework.atlassian.net/wiki/display/ICE/Downloads. A revised ICE Implementation Guide is also available.

See the feature article about ICE in Open Health News.