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 we have used in OpenSAFELY research to date.


All codelists


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current contraindications to vaccine SNOMED CT

Taken from the COVCONTRA_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

declined 2nd COVID vaccination SNOMED CT

Taken from the COV2DECL_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

declined 3rd COVID vaccination SNOMED CT

Taken from the COV3DECL_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

declined course/dose COVID vaccination SNOMED CT

Taken from the COVDECL_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

declined first COVID vaccination SNOMED CT

Taken from the COV1DECL_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

diabetes-exeter-group CTV3

Codes for type 1 and type 2 diabetes.

Published by OpenSAFELY
hazardous alcohol drinking CTV3

Codes that indicate hazardous alcohol drinking behavior. Future studies that require to specify ex-drinker and current-drinker need to revisit and review this codelist.

Published by OpenSAFELY
household contact of immune deficient person SNOMED CT

Taken from the HHLD_IMDEF_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

incident heart failure CTV3
Published by OpenSAFELY
incident-venous-thromboembolic-disease CTV3

Codes to define incident cases of venous thromboemolic disease.

Published by OpenSAFELY
is a carer SNOMED CT

Taken from the CARER_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

is currently pregnant SNOMED CT

Taken from the PREG_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

lives in residential care SNOMED CT

Taken from the LONGRES_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

lower COVID risk patients SNOMED CT

Taken from the NONSHIELD_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

neurological diseases SNOMED CT

Taken from the CNS_COV_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3