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National Casemix Office

The National Casemix Office (NCO) designs and refines classifications used to describe NHS healthcare activity in England. These classifications underpin the national reimbursement system from costing through to payment, and support local commissioning and performance management.

Page contents

Download groupers and tools

Find information on the latest HRG4+ Costing or Payment Groupers and the latest Prescribed Specialised Services Tool, plus supporting documentation

For more information about the work of the National Casemix Office, HRG designs and our stakeholder engagement, please visit The why, what and how of Casemix.

Contact details

If you have a question about our Grouper products, please call 0300 303 5678 or email [email protected].

Further information

internal The why, what and how of Casemix

Find out more about the National Casemix Office (NCO): why our products and services matter, what we do to support the NHS, and how we develop our products and services to facilitate improved patient care.

internal Register for updates

Register for updates here and keep up-to-date with the latest Grouper releases and casemix products. When a new Grouper product is released, you will be contacted via email.

internal Clinical Training Tool (CTT)

The Clinical Training Tool (CTT) has been developed by the National Casemix Office (NCO) in partnership with our 3rd Party Software Supplier, Woodward Associates, with the primary aim of enabling end users to understand the Casemix HRG4+ design.

Last edited: 5 December 2023 11:22 am