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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COVID-19 Vaccination Unavailable SNOMED CT
A single code to denote when a vaccine is unavailable.
Published by OpenSAFELY
COVID-19 vaccination medication code (any) dm+d
Taken from the `COVRX1/2_COD` fields in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
COVID19 risk category codes SNOMED CT
Taken from the `C19RISK_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/).
COVID19 testing diagnoses and related activity codes SNOMED CT
Taken from the `GDPPRC19ACTIVITY_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/).
COVID19 testing, diagnoses and related activity codes (obsolete) SNOMED CT
Taken from the `GDPPRC19ACTIVITY_COD` refset published by NHSD.
COX-2 Specific NSAIDs dm+d
This is a list of [NHS dictionary of medicines and devices](https://ebmdatalab.net/what-is-the-dmd-the-nhs-dictionary-of-medicines-and-devices/) oral non-seroidal anti-inflammatory drugs (NSAIDs) that specifically targets cyclooxygenase / COX-2 enzyme.
Published by OpenSAFELY
CRP level SNOMED CT
...
Published by Ardens
CVD risk assessment score QOF SNOMED CT
Patients who have received a cardiovascular risk score as listed in the QoF business rules
Published by OpenSAFELY
Ca125 SNOMED CT
...
Published by Ardens
Ca126 SNOMED CT
...
Published by Ardens
Ca127 SNOMED CT
...
Published by Ardens
Calcium Channel Blockers dm+d
The codelist contains medicines that are classed as [calcium channel blockers in BNF codes](https://openprescribing.net/bnf/020602/).
Published by OpenSAFELY
Calcium level SNOMED CT
...
Published by Ardens
Calcium test result codes SNOMED CT
Taken from the `CALC_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/).
Cancer excluding lung and haematological CTV3
Codes indicating a diagnosis of a cancer other than lung cancer or haematological cancer
Published by OpenSAFELY