The NHS Digital Interoperability Standards Service has developed a set of generic Fast Healthcare Interoperability Resources (FHIR) messaging components to allow a standardised approach to using FHIR message headers and responses across NHS message and document flows in England. These components, along with NHS Digital FHIR message and FHIR document specifications, are part of the ITK3 solution.
View specifications describing a specific payload, in this case Transfer of Care, that could be carried by the ITK3 FHIR messaging components
FHIR messages will be sent using Message Exchange for Social Care and Health (MESH) from sender to recipient as per the ITK3 specifications. To ensure that senders are clear on the successful receipt or otherwise of their messages, a piece of software, a Test Harness, has been built to produce standard
responses, including failures of messages.
Standard error codes and descriptions will be returned depending on the nature of the success/failure of a message. View details of expected response codes
The ITK3 Test Harness simulates the expected response of a receiving primary care practice system and the behaviour of a hospital sending system. The ITK3 Test Harness is situated within the NHS Digital Opentest environment, which is accessible via open source virtual private network (OpenVPN).
The transport mechanism used is MESH.