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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.

Top tasks

Download Groupers and Tools - find information on the latest HRG4+ Costing or Payment Groupers and the latest Prescribed Specialised Services Tool, along with supporting documentation, or go directly to:

Payment Groupers
Costing Groupers
Prescribed Specialised Services (PSS) Tools

Improving Access to Psychological Therapies (IAPT) Payment and Outcomes Tool - find out more about the Payment and Outcomes Tool that supports the Improving Access to Psychological Therapies (IAPT) payment model.

For more information about the work of the National Casemix Office, HRG designs and our stakeholder engagement, please visit Our definitions, remit and deliverables.  

Register for updates

Register for updates about the latest Grouper releases and casemix products. When a new Grouper product is released, you will be contacted via email.

Contact details

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

Last edited: 4 September 2018 2:31 pm