Interface mechanism (IM1) NHS standards

Published on: 23rd August 2020 | Updated on: 28th September 2023

Interface mechanism (IM1) pairing integration is a process that allows suppliers to integrate their system with any principal clinical system through an interface mechanism. It supports system standards and interoperability within local organisations and across local health and social care communities.

What is IM1 for?

Interface mechanisms enable separate systems to:

  • read patient information;
  • extract information in bulk; and
  • enter data into the other system.

IM1 pairing standards can help integration with NHS Patient Facing Service (PFS, ‘online services’). It also is a technical tool and process that allows digital suppliers to directly talk to GP clinical systems, both reading data from the systems and putting data into the systems.

The Community Pharmacy IT Group (CP ITG) has discussed with pharmacy system suppliers the need for greater alignment with apps, and NHS standards.

Supplier integration

Pharmacy supplier integration with IM1 is set out below:

IM1 integration(s)
Analyst PMR (Positive Solutions (PSL)) Unknown
Colombus (Boots) Unknown
CoMPass (Lloydspharmacy) Unknown
Pharmacy Manager/Nexphase (Cegedim Rx) Unknown
ProScript Connect (EMIS Health) Unknown
RxWeb (Clanwilliam) Unknown
Titan (Invatechhealth) Unknown

IM1 integrations are also listed at NHS Digital – see link at the end of this webpage.

If you are a supplier or a pharmacy contractor, and are aware that any supplier details above have changed or you have question about this webpage please contact:


Further info

Read more at:

Getting involved: If you work within pharmacy and wish to feed comments into future standards or IM1 please contact with ‘standards’ or ‘IM1’ within the subject title.



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