The primary challenge this research addresses is the lack of harmonization of healthcare technologies in emergent regions. Despite the high demand for digital transformation in the healthcare domain, a significant disparity remains in the capacity to implement digitized health services that leverage electronic identification for patient-centricity and adapt to the know-how processes that depend on the specificity of local contexts. This paper aims to bridge this gap by establishing a template of modular requirements supporting the design of viable Electronic Health Recored (EHR) transmitting and sharing of patient data through primary, secondary and specialized care, also being adaptable to diverse healthcare environments and scalable across varying socio-economic landscapes. The research is anchored in design science and conforms to an action research strategy having northern Brazil as an empirical case. The exaptation process extracted suggested requirements from standards set forth by the European Union, the Fast Healthcare Interoperability Resources (FHIR) and the Swedish ePrescription journal system, subject to be adapted to the Brazilian healthcare context using a participatory approach characterised by divergent developmental landscapes across municipalities. Harmonization requirements were refined from Brazilian healthcare policies for the digitization of healthcare. Patient-centricity requirements were extracted through fieldwork iterations from a target audience of Healthcare Professionals and Patient Associations representatives. Strategies from Brazilian healthcare policies addressing chronic kidney disease, selected as a significant challenge for specialized healthcare in emergent areas, were integrated to generalize the design of EHR modules for the prevention and monitoring of the population at risk.