Representing Sensor Data Using the HL7 CDA Personal Healthcare Monitoring Report Draft

The recently published implementation guide for personal healthcare monitoring report (PHMR) defines a new format to represent measurements. The aim of the presented prototypical implementation is to check the ability of the defined format to represent health-related sensor data using a commercially available multi-sensor-device's measurements. An extensible stylesheet language (XSL) stylesheet has been developed to transform measured data from the multi-sensor device to a valid PHMR document. The resulting documents are validated and evaluated using standard tools for processing extensible markup language (XML) documents. While there are multiple ways to represent data gathered by multi-sensor devices in standard compliant CDA documents, the PHMR defines constraints based on the implementation guide for continuity of care documents (CCD) to support the development of new templates for sensor data and to minimize the variation between different implementations to enhance semantic interoperability. The PHMR implementation guide helps to define interoperable CDA conforming documents encoding data of health related sensors. In some parts the guide should be more restrictive to improve real-life interoperability.