Representing UMLS knowledge using FHIR Terminological Resources Unified Medical Language System (UMLS) is a worldrenowned medical terminology that integrates multiple semantic standards into a single system enabling interoperability between the semantic standards, which in turn allows applications to translate medical codes from one source to another. Currently, users need to comprehend the complex UMLS knowledge structure and require technical skills to utilize UMLS. There exists no terminology service that expresses the UMLS captured knowledge in an interoperable format that is agnostic to UMLS knowledge structure, hides its complexity, and easy to comprehend. Thus, the goal of this work is to understand how the FHIR standard can be used for an interoperable representation of the knowledge captured by UMLS. This work provides the foundation to build a terminological service that allows interoperable access to UMLS knowledge hiding its complexity and structural details.

A Mobile App Architecture for Accessing EMRs Using XDS and FHIR Enabling data exchange between electronic medical records (EMRs) and personal health apps has the potential to boost the secondary usage of health data, eventually increasing the quality of life. In this paper, the authors present a mobile app architecture that enables the integration of legacy crossenterprise document sharing (XDS) and next generation fast healthcare interoperability resources (FHIR) compatible electronic medical record (EMR) systems with personal mobile applications. The realization of this architecture is achieved by linking EMR information from multiple providers at the point of care, with a personal health app for citizens, combining the benefits and potential of both XDS and FHIR.