| 1 | = Read Codes |
| 2 | |
| 3 | Read codes come in two flavours: version 2 and Clinical Trials Version 3 (CTV3). |
| 4 | |
| 5 | Both can be downloaded from [[https://www.uktcregistration.nss.cfh.nhs.uk/trud3|TRUD]]. |
| 6 | |
| 7 | == Clusters |
| 8 | |
| 9 | Read codes can be clustered into various groups for particular diseases. The details of these clusters can be downloaded from the [[http://www.pcc-cic.org.uk/article/qof-business-rules-v27|QOF Business Rules]] page. '''Note that the versions change quite regularly, so make sure you have the latest version.''' |
| 10 | |
| 11 | Here is a [[http://www.hscic.gov.uk/media/1577/Reading-and-Understanding-QOF-Business-Rules/pdf/qof-bus-rules.pdf|nice explanation of how to interpret the business rules]]. |