NHS PCD refsets updated in OpenCodelists

The NHS PCD (Primary Care Domain) reference sets (refsets) are a collection of codelists used in NHS business rules. We have recently imported the latest NHS PCD refsets into OpenCodelists. These refsets (tagged 20250627) are now available for use in OpenSAFELY analyses, ensuring researchers have access to the most up-to-date resources.

As part of our ongoing commitment to improving OpenSAFELY, we have enhanced the refset loading process. What was previously a manual, time-consuming workflow is now almost entirely automated. This means new versions of the refsets will be available to our users much more quickly and reliably.