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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INR Time in therapeutic range codes (obsolete) SNOMED CT
Taken from the `TTR_COD` refset published by NHSD.
INR result codes SNOMED CT
Taken from the `INR_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/).
Ibandronic acid dm+d
All products containing ibandronic acid.
Published by OpenSAFELY
Ibuprofen - oral dm+d
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 Ibuprofen.
Published by OpenSAFELY
Icosapent ethyl contraindicated codes SNOMED CT
Taken from the `ICOSAETHYLCON_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/).
Icosapent ethyl drug codes dm+d
Taken from the `ICOSAETHYL_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
Icosapent ethyl not indicated codes SNOMED CT
Taken from the `ICOSAETHYLNIND_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/).
Idiopathic membranous glomerulonephritis codes SNOMED CT
Taken from the `IDIOMEMBGN_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/).
Illicit substance abuse codes SNOMED CT
Taken from the `ILLSUB_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/).
Illicit substance abuse intervention and declined codes SNOMED CT
Taken from the `ILLSUBINT_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/).
Immune thrombocytopenia (ITP) codes SNOMED CT
Taken from the `ITP_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/).
Immunosuppresant Drugs (PRA) (SNOMED) SNOMED CT
Taken from the Immunosuppression (PRA) tab of the Population Risk COVID-19 Treatments code list v1.3, published by NHS Digital, 2021-12-13.
Published by NHS Digital
Immunosuppression admin codes SNOMED CT
Immunosuppression codes (expiring) SNOMED CT
Taken from the `IMTEMP_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 codes (persisting) SNOMED CT
Taken from the `IMATRISK1_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/).