FHIR-native Healthcare Platform for Chinese Healthcare Systems
Built with Node.js & TypeScript

MedXAI is a FHIR-native healthcare platform designed as foundational infrastructure for building healthcare systems in China.

MedXAI treats FHIR R4 as the core semantic model, not just an exchange format.

It is not:

• a demo FHIR server
• a simple REST wrapper over a database
• a hospital-ready application

It is:

• a production-oriented FHIR R4 platform
• a semantic foundation for healthcare systems
• a base layer for vendors, platforms, and applications

Most healthcare systems adopt FHIR as a data interchange format.

MedXAI adopts FHIR as the source of truth.

This means:

• StructureDefinition drives data structure and constraints
• Snapshot / Differential are first-class architectural concepts
• Validation is structural and semantic, not schema-only
• Business logic is built on top of FHIR, not beside it

FHIR is not an adapter in MedXAI — it is the core.

FHIR is global. Healthcare workflows are not.

MedXAI is explicitly designed for Chinese healthcare environments, including:

• Chinese clinical workflows and operational patterns
• Local code systems and extensions
• National interoperability and compliance requirements
• Real-world hospital and regional platform integration needs

This is not a localization layer added later —
China-specific design is part of the core architecture.

MedXAI is organized as a platform, not a single service.

• Resource CRUD and versioning
• Profile and StructureDefinition management
• Snapshot & Differential processing
• Structural and semantic validation
• Search and terminology foundations

• Identity and access control
• Workflow primitives
• Extension and customization mechanisms
• Integration and orchestration support

• Healthcare applications
• Domain-specific services
• Integration adapters
• Vendor-specific modules

• FHIR as the semantic core
• Explicit over implicit
• Platform before product
• Architecture before optimization
• Long-term maintainability over short-term features

MedXAI is suitable for:

• Healthcare IT vendors and system integrators
• Platform teams building HIS / EMR / regional systems
• Architects adopting FHIR as a core domain model
• Developers building healthcare platforms or services

MedXAI may not be suitable if:

• You only need simple data exchange
• You want a quick prototype or demo
• You are looking for a hospital-ready application out of the box
• You do not plan to adopt FHIR as a core model

• Actively developed
• Architecture-first
• Designed for long-term evolution

MedXAI is under continuous development.
Interfaces and modules may evolve as the platform matures.

• FHIR R4 core compliance
• Profile-driven validation engine
• China-specific extensions and code systems
• Platform APIs and services
• Application development framework

Contributions, discussions, and design feedback are welcome.

Before submitting large changes, please open an issue to discuss architectural implications.