This database holds the current maps, for the full data files of the maps please subscribe to and download the “NHS Data Migration” content from TRUD. The maps are those provided in the April 2020 release of SNOMED CT and Data Migration Maps.

You can use a v2 ReadCode, TermCode or Term30 search string to find the mapped SNOMED CT codes and term.

The v2 Term30 text displayed is always from the NHS England (UNIFIED) edition of READ2. Some 437 codes from READ2’s Chapter 9 Administration appear in both the NHS England (UNIFIED) and NHS Scotland (UNISCOT) editions but with different terms; only the NHS England edition Term30 text is displayed for these. A further 102 Chapter 9 codes are unique to the NHS Scotland (UNISCOT) edition and are not also found in the NHS England (UNIFIED) edition at all; no v2 Term30 text is currently shown for these.

Following consultation, the final release of the Read v2 to SNOMED CT mapping tables was April 2020, the pack will now remain as unmaintained static data.

Unscheduled updates of the TRUD pack may occur until April 2023, but will only be released in order to resolve critical clinical safety issues.