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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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
vitamin-d-deficiency-symptoms SNOMED CT
Captures vitamin D deficiency symptoms. It is developed for the purpose of the vitamin D study (indications for vitamin D testing/ prescribing).
Published by OpenSAFELY
vomiting ICD10 ICD-10
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