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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Mixed dementia codes SNOMED CT
Taken from the `DEMMIX_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/).
Mixed or multiple ethnic groups Any other Mixed or multiple ethnic background ethnicity group codes SNOMED CT
Taken from the `ETHALLMO_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/).
Mixed or multiple ethnic groups Any other Mixed or multiple ethnic background ethnicity group codes (2016 grouping) SNOMED CT
Taken from the `ETH2016MO_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/).
Mixed or multiple ethnic groups Any other Mixed or multiple ethnic background ethnicity group codes (2016 grouping) (obsolete) SNOMED CT
Taken from the `ETH2016MO_COD` refset published by NHSD.
Mixed or multiple ethnic groups White and Asian ethnicity group codes SNOMED CT
Taken from the `ETHALLMWA_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/).
Mixed or multiple ethnic groups White and Asian ethnicity group codes (2016 grouping) SNOMED CT
Taken from the `ETH2016MWA_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/).
Mixed or multiple ethnic groups White and Asian ethnicity group codes (2016 grouping) (obsolete) SNOMED CT
Taken from the `ETH2016MWA_COD` refset published by NHSD.
Mixed or multiple ethnic groups White and Black African ethnicity group codes SNOMED CT
Taken from the `ETHALLMWBA_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/).
Mixed or multiple ethnic groups White and Black African ethnicity group codes (2016 grouping) SNOMED CT
Taken from the `ETH2016MWBA_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/).
Mixed or multiple ethnic groups White and Black African ethnicity group codes (2016 grouping) (obsolete) SNOMED CT
Taken from the `ETH2016MWBA_COD` refset published by NHSD.
Mixed or multiple ethnic groups White and Black Caribbean ethnicity group codes SNOMED CT
Taken from the `ETHALLMWBC_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/).
Mixed or multiple ethnic groups White and Black Caribbean ethnicity group codes (2016 grouping) SNOMED CT
Taken from the `ETH2016MWBC_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/).
Mixed or multiple ethnic groups White and Black Caribbean ethnicity group codes (2016 grouping) (obsolete) SNOMED CT
Taken from the `ETH2016MWBC_COD` refset published by NHSD.
Moderate asthma diagnosis codes SNOMED CT
Taken from the `MODAST_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/).
Moderate frailty diagnosis codes SNOMED CT
Taken from the `MODFRAIL_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/).