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

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

Codes to define incident cases of venous thromboemolic disease.

Published by OpenSAFELY
peripheral arterial disease CTV3

Codes that indicate incident or history of peripheral arterial disease.

This is used for calculating the CHAD2S2-VASc score.

Published by OpenSAFELY
receiving chemotherapy or radiotherapy codes SNOMED CT

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

severe and profound learning disability flags CTV3

This is a list of generic codes which record the presence of a severe or profound learning disability, flagged as such in a patient's records separately to their underlying diagnosis.

Published by OpenSAFELY
sick-notes-ctv3 CTV3
Published by OpenSAFELY
sick-notes-snomed SNOMED CT
Published by OpenSAFELY
to represent household contact of shielding individual SNOMED CT

Taken from the HHLD_IMDEF_COD field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

type of residence SNOMED CT

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

venous thromboembolism ICD-10 ICD-10

Codes to define venous thromboembolism in ONS death data.

Published by OpenSAFELY
venous-thromboembolic-disease-hospital ICD-10

Codes to define venous thromboembolic disease in hospital.

Published by OpenSAFELY