Updated the EFI codesets to include SNOMED #193
Merged
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EFI currently only has Readv2 and CTV3 code sets. This is what is implemented in any system that calculates EFI. In order to be consistent with what exists in GP practices, we keep the Readv2 and CTV3 codes and do not attempt to validate them. However, now that all codes in our database are SNOMED, we need a way to generate the equivalent SNOMED code sets. Therefore we use the NHS mapping from Read and CTV to SNOMED. A one-off mapping script was created for this purpose. It will not be needed again for this, but is retained here for transparency, and also in case a similar script is needed in future.