Delen: Home

Welcome to Delen - the information sharing and collaboration platform for users of our Terminology and Classifications products.

Here you can access up-to-date information, useful resources, education and training materials and technical support relating to our products, to help you in your role.

Our Query Resolution Database contains the resolutions we've provided to classifications and associated clinical coding queries received by our Product Support helpdesk in NHS England. 

Our service updates provide up-to-date information on incidents and important notices in relation to our products. It's designed to keep you informed about any issues that may impact availability, performance or functionality.

SNOMED CT to Classifications Maps are a link from SNOMED CT to OPCS-4 and ICD-10, compiled to reflect the national clinical coding standards and aid the application of the three dimensions of coding accuracy. 

We conduct targeted surveys and consultations to gather insights and satisfaction levels about our products and services, and to better understand the priorities of our customers and to inform our decisions. 

Browse our list of popular publications  or search our Resource Library which contains a collection of useful Terminology and Classifications materials. 

Find out all you need to know about our Auditor and Trainer programmes:

• Clinical Coding Auditor Programme (CCAP)
• Clinical Coding Trainer Programme (CCTP)

We host a range of dedicated workspaces for NHS professional communities, tailored to the specific information needs of different groups. Examples include clinical coding managers, and organisations undertaking SNOMED CT implementation.

Our support and advice section provides information on what to do if you need help or have a query.