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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Immunosuppression procedure codes SNOMED CT
Taken from the `IMTRTATRISK1_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/).
Immunosuppression resolved codes SNOMED CT
Taken from the `IMRESATRISK1_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/).
Immunosuppressive therapy for solid organ transplant systemic medication codes dm+d
Taken from the `IMMORGTRANSPDRUG_COD` NHS drug refset. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Published by NHS Drug Refsets
Immunosupression (PCDCluster) (SNOMED CT) SNOMED CT
Taken from the Immunosupression (PCDCluster) tab of the Population Risk COVID-19 Treatments code list v1.3, published by NHS Digital, 2021-12-13.
Published by NHS Digital
Impaired glucose tolerance codes SNOMED CT
Taken from the `IGT_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/).
Incident Stroke CTV3
Codes relating to incident stroke in primary care.
Published by OpenSAFELY
Incident heart failure CTV3
Incident heart failure codes
Published by OpenSAFELY
Incident non-traumatic stroke CTV3
Further adapted from https://codelists.opensafely.org/codelist/opensafely/incident-stroke/2020-10-05/, to remove codes associated with trauma, or perinatal events (thanks to Brian Nicholson for reviewing this!).

The list was previously from https://codelists.opensafely.org/codelist/opensafely/stroke-updated/2020-06-02/.
Published by OpenSAFELY
Inclisiran contraindicated codes SNOMED CT
Taken from the `INCLISIRANCON_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/).
Inclisiran drug codes dm+d
Taken from the `INCLISIRAN_COD` NHS drug refset. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Published by NHS Drug Refsets
Inclisiran not indicated codes SNOMED CT
Taken from the `INCLISIRANNIND_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/).
Indometacin 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/) codes for oral indometacin.
Published by OpenSAFELY
Inflammatory Bowel Disease CTV3
Codes indicating diagnosis of inflammatory bowel disease
Published by OpenSAFELY
Inflammatory Bowel Disease (SNOMED) SNOMED CT
Automatically-generated equivalent of [Inflammatory Bowel Disease](/codelist/opensafely/inflammatory-bowel-disease/)
Published by OpenSAFELY
Inflammatory Bowel Disease - Unclassified CTV3
Published by OpenSAFELY