Publishers and mapping to the common model

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Publishers are defined as any provider system, or provider/ system/version combination that  sends data to Discovery or provides an API for Discovery to use to obtain data.

Some providers have systems that have a common mechanism of publishing data. Typical examples of this are GP system suppliers such as EMIS, TPP or Vision. In this case the transformation and mapping can be standardised and used for any publisher.

Some providers have systems that do not have a mechanism of publishing data, or where they do, a particular provider may not have purchased it. In this case a transformation and mapping exercise has to be undertaken specifically for that provider. In many cases that also means a variety of source systems are involved.

These articles summarise the necessary transformations and mappings needed for each provider system. 

General approach

The initial transformation in Discovery is to an extended FHIR format i.e. a FHIR model with extensions, the extensions  to accomodate the many dozens of properties and data types for particular specialist systems or specialties within providers.  From the interim FHIR format, a further structural and semantic mapping occurs to the common model and the data is stored in a form that can be efficiently queried and retrieved. This can be illustrated as follows:


New publisher data standards


Main article: Publisher API HL7 Messages

CDS Data

Main article: CDS Data

Community Data

Main article: Community data FHIR mapping

Mental Health

Main article: Mental Health FHIR Store Mappings

Social Care

Main article: Social Care FHIR Store Mappings

Unstructured Secondary Care

Main article: Unstructured secondary care data FHIR mapping

Live data feeds


Main article: Adastra Extract FHIR Mapping

BHRUT Medway

Main article: BHRUT Medway Extract FHIR Mapping

Cerner Imperial


Main article: EMIS GP published data transformation and mapping


Main article: TPP Extract FHIR Mapping


Main article: Vision GP Extract FHIR Mapping

Historic data feeds

Barts Health ADT

Main article: HL7 ADT (Draft)

Barts Health CDS

Main article: Barts Health CDS FHIR Mapping

Barts Health Cerner

Homerton ADT

Main article: Homerton ADT FHIR Mapping