Supported FHIR Features
The FHIR® service in Azure Health Data Services provides a fully managed deployment of the open-source FHIR Server and is an implementation of the FHIR standard. This article lists the main features of the FHIR service.
FHIR version
Latest version supported: 4.0.1
Previous versions also currently supported include: 3.0.2
REST API
Here's a summary of the supported RESTful capabilities. For more information on the implementation of these capabilities, see FHIR REST API capabilities.
| API | Azure API for FHIR | FHIR service in Azure Health Data Services | Comment |
|---|---|---|---|
| read | Yes | Yes | |
| vread | Yes | Yes | |
| update | Yes | Yes | |
| update with optimistic locking | Yes | Yes | |
| update (conditional) | Yes | Yes | |
| patch | Yes | Yes | Support for JSON Patch and FHIRPath Patch only. |
| patch (conditional) | Yes | Yes | Support for JSON Patch and FHIRPath Patch only. |
| history | Yes | Yes | |
| create | Yes | Yes | Support both POST/PUT |
| create (conditional) | Yes | Yes | Issue #1382 |
| search | Partial | Partial | See Overview of FHIR Search. |
| chained search | Yes | Yes | |
| reverse chained search | Yes | Yes | |
| batch | Yes | Yes | |
| transaction | No | Yes | |
| paging | Partial | Partial | self and next are supported |
| intermediaries | No | No |
Extended Operations
All the operations that are supported that extend the REST API.
| Search parameter type | Azure API for FHIR | FHIR service in Azure Health Data Services | Comment |
|---|---|---|---|
| $export (whole system) | Yes | Yes | Supports system, group, and patient. |
| $convert-data | Yes | Yes | |
| $validate | Yes | Yes | |
| $member-match | Yes | Yes | |
| $patient-everything | Yes | Yes | |
| $purge-history | Yes | Yes | |
| $import | No | Yes | |
| $bulk-delete | Yes | Yes |
Role-based access control
FHIR service uses Microsoft Entra ID for access control.
Service limits
- Bundle size - Each bundle is limited to 500 items.
- Subscription Limit - By default, each subscription is limited to a maximum of 10 FHIR services. The limit can be used in one or many workspaces.
- Storage size - By default each FHIR instance is limited to storage capacity of 4 TB. To deploy a FHIR instance with storage capacity beyond 4 TB, create support request with Issue type Service and Subscription limit (quotas).
Next steps
Note
FHIR® is a registered trademark of HL7 and is used with the permission of HL7.