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.

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Urea and Electrolytes test results SNOMED CT
Taken from the `UE_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Urinary-tract infections (antibacterials) dm+d
Urinary-tract infections codelist extracted from antibacterials codelist (https://www.opencodelists.org/codelist/opensafely/antibacterials/27089eaa/)
Published by UKHSA
Urine albumin codes SNOMED CT
Taken from the `NDAALB_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Urine tests SNOMED CT
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Published by Ardens
VSL#3 and Vivomixx BNF
Used by the following [OpenPrescribing](https://openprescribing.net) measures:

* [Probiotics that have been removed from the drug tariff](https://openprescribing.net/measure/probiotics/)
Published by OpenPrescribing
VTE classified codes CTV3
VTE codes classified into cvt, dvt, pe, hepatic, smv, unspecified and other.
Published by OpenSAFELY
Valneva booster medication code dm+d
Taken from the `VLB1RX_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
Valneva vaccination medication code dm+d
Taken from the `VLD1/2RX_COD` fields in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
Valvular atrial fibrillation CTV3
Codes indicating incident/ history of valvular atrial fibrillation (codes indicating artificial valves and mitral stenosis).
Published by OpenSAFELY
Vascular dementia (ICD10) V1.3 ICD-10
Vascular dementia (SNOMED-CT) V1.3 SNOMED CT
Vascular dementia codes SNOMED CT
Taken from the `DEMVASC_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Venous Thromboembolic Disease CTV3
DEFINITION: A history of venous thromboembolic disease

Variables:
(1) a binary variable denoting the presence of one of the codes at any point in the patient record.
Published by OpenSAFELY
Venous thromboembolism (VTE) diagnosis codes SNOMED CT
Taken from the `VTE_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Venous thromboembolism (current) by type - secondary care and mortality data ICD-10
ICD-10 codelist for any history of venous thromboembolism.

This differs from the [existing OpenSAFELY codelist incident VTE](https://codelists.opensafely.org/codelist/opensafely/incident-venous-thromboembolic-disease/2020-09-30/) by including codes that specify the event occured during pregnancy or post partum, and post thrombotic syndrome, and by further clarifying type (site) of VTE.
Published by OpenSAFELY