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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COVID19 risk category codes SNOMED CT

Taken from the C19RISK_COD refset published by NHSD.

COVID19 testing, diagnoses and related activity 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 oral non-seroidal anti-inflammatory drugs (NSAIDs) that specifically targets cyclooxygenase / COX-2 enzyme.

Published by OpenSAFELY
CRP level SNOMED CT

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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

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Published by Ardens
Ca126 SNOMED CT

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Published by Ardens
Ca127 SNOMED CT

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Published by Ardens
Calcium Channel Blockers dm+d

The codelist contains medicines that are classed as calcium channel blockers in BNF codes.

Published by OpenSAFELY
Calcium level SNOMED CT

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Published by Ardens
Calcium test result codes SNOMED CT

Taken from the CALC_COD refset published by NHSD.

Cancer excluding lung and haematological CTV3

Codes indicating a diagnosis of a cancer other than lung cancer or haematological cancer

Published by OpenSAFELY
Cancer excluding lung and haematological (SNOMED) SNOMED CT

Automatically-generated equivalent of Cancer excluding lung and haematological

Published by OpenSAFELY
Cancer safety netting codes SNOMED CT

Taken from the CANSAFNET_COD refset published by NHSD.

Cardio vascular disease (CVD) exception from quality indicator codes SNOMED CT

Taken from the CVDEXC_COD refset published by NHSD.