OpenCodelists

Welcome to OpenCodelists, created by OpenSAFELY for creating and sharing codelists.

Anybody can also use this tool to create and share codelists. To get started, take a look at the documentation or watch the videos.

If you would like to publish codelists on behalf of an organisation, please get in touch.

Below, you'll find all the codelists that have been used in OpenSAFELY research to date.

All codelists


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Waist circumference measured SNOMED CT
Taken from the `WAIST_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Warfarin dm+d
This is a codelist to identify all warfarin preparations in the [NHS dictionary of medicines and devices](https://ebmdatalab.net/what-is-the-dmd-the-nhs-dictionary-of-medicines-and-devices/).
Published by OpenSAFELY
Wegener’s vasculitis codes SNOMED CT
Taken from the `WEGENERVASC_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Weight (SNOMED) SNOMED CT
Returns body weight measurements.
Published by OpenSAFELY
Weight management intervention codes SNOMED CT
Taken from the `WTMGINT_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Weight measured codes SNOMED CT
Taken from the `NDAWEIGHT_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Weight measured codes (obsolete) SNOMED CT
Taken from the `NDAWEIGHT_COD` refset published by NHSD.
White - Any other White background Ethnicity SNOMED CT
Taken from the `ETH2001_WHIOTHER_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
White - Any other White background Ethnicity SNOMED CT
Taken from the `ETH2001_WHIOTHER_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
White Any other White background ethnicity group codes (2016 grouping) SNOMED CT
Taken from the `ETH2016WO_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
White Any other White background ethnicity group codes (2016 grouping) (obsolete) SNOMED CT
Taken from the `ETH2016WO_COD` refset published by NHSD.
White British Ethnicity SNOMED CT
Taken from the `ETH2001_WHIBRIT_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
White British Ethnicity SNOMED CT
Taken from the `ETH2001_WHIBRIT_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
White English or Welsh or Scottish or Northern Irish or British ethnicity group codes (2016 grouping) SNOMED CT
Taken from the `ETH2016WB_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
White English or Welsh or Scottish or Northern Irish or British ethnicity group codes (2016 grouping) (obsolete) SNOMED CT
Taken from the `ETH2016WB_COD` refset published by NHSD.