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The most current business rules are available in PDFs and are available in zip folders. The tracked changes showing version of the business rules zip file shows the current version of the business rules with the changes applied from the previous version visible.
Download the Zip file containing all the PDF versions of the business rules
Download the Zip file containing all the track changes showing versions of the business rules
Download the most recent version of Enhanced Services (ES) business rules change log 2018-2019 v0.21
Download the expanded cluster list ES 2018-2019 v0.19
The National Diabetes Audit (NDA) became part of the core contract in 2018-19 and more details can be found here
Download the zip file containing all of the relevant documents for the NDA including business rules, change logs and expanded cluster list 2018-19