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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Moving to new residence and other non-care home living status codes SNOMED CT
Taken from the `MOVNEWRES_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/).
Moving to new residence and other non-care home living status codes (obsolete) SNOMED CT
Taken from the `MOVNEWRES_COD` refset published by NHSD.
Multicentric reticulohistiocytosis (MRH) codes SNOMED CT
Taken from the `RETICHISTIOCYTOSIS_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/).
Multidisciplinary meeting codes SNOMED CT
Taken from the `MDTMEET_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/).
Multimorbidity_COPD SNOMED CT
Multimorbidity_alcoholproblems SNOMED CT
Multimorbidity_anxiety/depression SNOMED CT
Multimorbidity_atrial fibrillation SNOMED CT
Multimorbidity_cancer SNOMED CT
Multimorbidity_chronic kidney disease SNOMED CT
Multimorbidity_connective tissue disorder SNOMED CT
Connective tissue disorder codelists (SNOMED):
This codelist captures connective tissue disorders, including rheumatoid arthritis, other inflammatory polyarthropathies, and systemic connective tissue diseases—conditions grouped together under the Cambridge Multimorbidity Score.
Multimorbidity_coronary heart disease SNOMED CT
Coronary heart disease codelists (SNOMED):
This codelist captures coronary heart disease, one of the conditions included in the Cambridge Multimorbidity Score. Codes were sourced from the `CHD_COD` refset published by NHS Digital and supplemented with converted codes from the original published paper.
Multimorbidity_dementia SNOMED CT
Multimorbidity_diabetes SNOMED CT
Multimorbidity_epilepsy SNOMED CT