Building Digital Health Infrastructure in Bangladesh: Standards, Architecture, and Digital Public Goods
Bangladesh’s digital health transformation is not being built as a collection of isolated software systems. Instead, it is being designed as an interoperable, standards-based national architecture, where multiple systems can communicate seamlessly while remaining independently scalable.
Following the introduction of the Health ID and foundational registries, the next layer of this ecosystem focuses on interoperability standards, terminology systems, and architectural frameworks.
Interoperability as the Foundation
At the heart of the system lies syntactic interoperability, implemented using FHIR.
FHIR enables:
- Standardized data exchange between systems
- Modular and API-driven architecture
- Real-time interoperability across platforms
This ensures that different applications—whether hospital systems, lab systems, or national registries—can exchange data in a consistent and structured format.
Centralized Terminology Service
While FHIR handles structure, meaning is handled through a centralized terminology service built using Open Concept Lab.
This ensures:
- Consistent interpretation of clinical data
- Standardized coding across all systems
- Central governance of health terminologies
Within this terminology layer, Bangladesh is adopting globally recognized standards:
1. Clinical Classification — ICD-11
Used for:
- Diagnoses
- Symptoms and signs
- Clinical findings
ICD-11 enables:
- International comparability of health data
- Standardized morbidity and mortality reporting
- Alignment with WHO frameworks
2. Observations & Diagnostics — LOINC
Used for:
- Laboratory results
- Clinical observations
- Radiological findings
LOINC ensures that results generated in one system can be understood universally across all systems.
3. Medicines — National Drug List (DGDA)
Bangladesh integrates:
- National drug list from DGDA
- Alignment with ICD-11 medicament classification
This ensures:
- Standardized prescribing
- Consistency in pharmaceutical data
- Integration with clinical records and decision systems
Architectural Backbone — OpenHIE
The entire ecosystem is built following the OpenHIE framework, which provides:
- A modular architecture for national health systems
- Clearly defined interoperability layers
- Reusable components (registries, interoperability layer, terminology services)
OpenHIE allows Bangladesh to:
- Avoid monolithic system design
- Integrate multiple systems gradually
- Scale nationally without redesign
Why This Approach Matters
This architecture is not just technically sound—it is strategically critical.
1. No Vendor Lock-in
By using open standards and open architectures:
- Systems are not tied to a single vendor
- Components can be replaced or upgraded independently
2. Use of Digital Public Goods
The ecosystem is built on globally recognized digital public goods, meaning:
- Open standards
- Open frameworks
- Community-supported technologies
This reduces cost and increases sustainability.
3. National Scalability
The architecture supports:
- Gradual expansion across all levels of care
- Integration of new systems without disruption
- High-volume, population-scale deployment
4. International Compatibility
By aligning with global standards like FHIR, ICD-11, and LOINC:
- Bangladesh’s health data becomes internationally comparable
- Easier collaboration with global health initiatives
- Improved reporting to international organizations
5. Future-Proof Design
Because the system is:
- Modular
- Standards-based
- Interoperable
It can adapt to:
- New technologies
- AI-driven systems
- Advanced analytics and decision support
Conclusion
Bangladesh’s digital health architecture is not simply about digitizing existing processes. It represents a systematic shift toward an interoperable, standards-driven ecosystem, built on global best practices and digital public goods.
By combining:
- FHIR for data exchange
- Centralized terminology via Open Concept Lab
- ICD-11, LOINC, and national drug standards
- OpenHIE architectural framework
the country is laying the foundation for a scalable, sustainable, and globally aligned digital health system.