PIRE: Interoperable Platform for Electronic Records

The interoperability of electronic health records in Colombia faces a critical gap between the regulatory mandates established by Law 2015 of 2020, Resolution 866 of 2021, and Resolution 1888 of 2025, and the actual technical capacity of healthcare institutions to implement them. This article presents PIRE (Electronic Records Interoperability Platform), an open-source architecture that demonstrates the viability of end-to-end FHIR systems in the Colombian context. The main objective was to develop a platform capable of integrating health data from biomedical devices into an FHIR server, preserving clinical semantics through LOINC terminologies. The methodology followed an iterative development approach, implementing a HAPI FHIR server on AWS, a normalization application in Flask, and clinical visualization modules aligned with the FHIR Core CO Implementation Guide. The Bioharness-3 device was used to capture metrics on heart rate, respiratory rate, activity, and posture. The results demonstrate that the architecture enables the semantically preserved exchange of biosignals in real time, validating compliance with Colombian IHCE specifications. It is concluded that PIRE constitutes a reproducible reference model for healthcare institutions that wish to implement interoperability without relying on costly enterprise solutions.