Interoperability Toolkit: Guidance for developers A collection of software developer resources. ARTICLE HL7V3 Health and Social Care Integration Domain Message Specification The Health and Social Care Integration (HSCI) Domain Message Specification (DMS) supports the communication requirements of the Assessment, Discharge and Withdrawal Notices Between Hospitals and Social Services Information Standard. ARTICLE ITK Payloads – HL7v3 and Clinical Document Architecture The NHS Interoperability Toolkit (ITK) provides specifications for electronic messaging between systems, supported by an accreditation for suppliers who build solutions that adhere to these specifications. This page explains the two main areas; transport and payloads. ARTICLE NHS Interoperability Framework The Interoperability Toolkit (ITK) is a set of national standards, frameworks and implementation guides to support interoperability within local organisations and across local health communities. The ITK is not a piece of software. ARTICLE ITK API and reference implementation scenarios This page summarises a number of scenarios that illustrate how the the API and reference implementation can be used in the real world. ARTICLE Downloads and data - ITK developer resources Download tools and source code for developers relating to the Interoperability Toolkit (ITK). This content was previously found on the developer.nhs.uk platform. ARTICLE Interoperability Toolkit (ITK) release 2.2 The Interoperability Toolkit (ITK) aims to standardise interoperability within both health and social care. ARTICLE ITK3 Test Harness NHS Digital has developed a set of generic FHIR messaging components to allow a standard approach to FHIR MessageHeaders and responses across NHS message and document flows in England. These components, along with NHS Digital payload specifications, are part of the ITK3 solution. ARTICLE Pragmatic use of ITK3 response codes for generic FHIR receive programmes This guidance clarifies the use of the application level ITK3 response codes associated with the Generic FHIR Receive (GFR) capability ARTICLE ITK test centre - interoperability and integration Find testing tools, data and guidance for the NHS interoperability framework. ARTICLE Transfer of Care message specifications The Transfer Of Care (TOC) specifications contain new and previous versions of Acute Inpatient Discharge, Emergency Care Discharge, Mental Health Discharge, Outpatient Clinic Letter. Interoperability Toolkit Overview pdf 2 MB Spine Mini Services Assurance Overview pdf 610 KB Anatomy of an ITK message web services support pdf 321 KB ITK Distribution Envelope in relation to ITK Transports pdf 171 KB Acknowledgement Framework Sequence Diagram pdf 11 KB Additional guidance for use of ITK3 response codes for the Generic Receive Capability pdf 218 KB Last edited: 2 March 2023 11:14 am