How to Use Medical Terminologies with HL7 FHIR: Explaining CodeSystem and ValueSet

Details

This material offers a detailed explanation of the structure and utilization of medical terminologies based on the HL7 FHIR standard. Specifically, it provides multiple RESTful API endpoints (e.g., `GET .../CodeSystem`, `GET .../ValueSet/$expand`) in addition to video content. The main topics covered include: 1. **Fundamentals**: How to define and access entire CodeSystems or specific ValueSets. 2. **Extensions**: Methods for adding language translations (supplement) to HL7 code systems, or adding hierarchical structures to existing terminologies like SNOMED CT. 3. **Data Management**: Handling metadata, such as searching for ValueSets based on server update history or using OID for specific lookups. 4. **Advanced Queries**: Practical API usage examples are provided, including searching for ValueSets without parameters via URL, retrieving concept details from SNOMED CT codes (`$lookup`), and extracting child concepts hierarchically from a given code (e.g., RHK-10). This information is crucial as it serves as both a foundational guide for terminology standardization and practical implementation guidelines using FHIR in healthcare data exchange.