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

ulcer_peptic Read V2
Published by QMUL Multimorbidity
unspecified mood disorders ICD-10
urinary tract infection SNOMED CT

Urinary tract infection (UTI) codes, focusing on UTI events which may be treated with antibiotics

Published by UKHSA
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
weight_kgs SNOMED CT

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

Published by QCovid