The Implementation Toolkit for Clinical Handover Improvement, developed by the Commission, is a 'how to' guide for managers and clinicians reviewing their local clinical handover processes.

The HACs are identified using a combination of ICD-10-AM codes to identify the diagnosis and the condition onset flag (METeOR identifier: 354816) to indicate that the diagnosis occurred during the episode of admitted patient care.

Some HACs also require other codes to define the complication such as procedure and external cause codes.