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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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
hearing_loss Read V2
Published by QMUL Multimorbidity
heart_failure Read V2
Published by QMUL Multimorbidity
height_cms SNOMED CT

SNOMED codelist for the height_cms group in the QCovid® to develop the COVID-19 Population Risk Assessment.

Published by QCovid
historic anxiety and depression diagnosis codes SNOMED CT
historic codes and early-onset obesity codes SNOMED CT
historic self-harm codes SNOMED CT
historic serious mental illness diagnosis codes SNOMED CT
hypertension Read V2
Published by QMUL Multimorbidity
incident heart failure CTV3
Published by OpenSAFELY
incident-venous-thromboembolic-disease CTV3

Codes to define incident cases of venous thromboemolic disease.

Published by OpenSAFELY
intellec_disability Read V2
Published by QMUL Multimorbidity
is_prescribed_immunosuppressants dm+d

DM+D codelist for the is_prescribed_immunosuppressants group in the QCovid® to develop the COVID-19 Population Risk Assessment.

Published by QCovid
is_prescribed_oral_steroids dm+d

DM+D codelist for the is_prescribed_oral_steroids group in the QCovid® to develop the COVID-19 Population Risk Assessment.

Published by QCovid
is_taking_antileuko_or_laba dm+d

DM+D codelist for the is_taking_antileuko_or_laba group in the QCovid® to develop the COVID-19 Population Risk Assessment.

Published by QCovid