At the 18th FHIR Connectathon in Cologne, Germany on May 12-13, 2018, HLN successfully integrated its open source Immunization Calculation Engine (ICE) service with test instances of two Electronic Health Record (EHR) products, Epic and Cerner, using the CDS Hooks standard.
CDS Hooks is an emerging specification for invoking third-party Clinical Decision Support (CDS) web services from various points within an EHR workflow, such as whenever a patient is viewed. Registering a CDS service in an EHR is as easy as supplying a service discovery URL.
When invoked, the ICE CDS Hooks service accepts patient demographics and immunization history supplied by the EHR in FHIR format; calls the ICE decision support service; and sends back immunization forecasting alerts to the EHR for display.
The Connectathon was held prior to the May HL7 Working Group Meeting in Cologne. Version 1.0 of the CDS Hooks standard is being voted on during the May 2018 HL7 ballot cycle.
More information on ICE is available at cdsframework.org.