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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Clopidogrel contraindications codes (expiring) SNOMED CT
Taken from the `TXCLO_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/).
Clopidogrel contraindications codes (expiring) (obsolete) SNOMED CT
Taken from the `TXCLO_COD` refset published by NHSD.
Clopidogrel contraindications codes (persisting) SNOMED CT
Taken from the `XCLO_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/).
Clopidogrel contraindications codes (persisting) (obsolete) SNOMED CT
Taken from the `XCLO_COD` refset published by NHSD.
Clopidogrel prophylaxis codes SNOMED CT
Taken from the `CLO_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/).
Co-amoxiclav (oral) dm+d
This codelist contains co-amoxiclav formulations which may be given orally.
Published by OpenSAFELY
Co-proxamol BNF
Used by the following [OpenPrescribing](https://openprescribing.net) measures:

* [Co-proxamol](https://openprescribing.net/measure/coproxamol/)
Published by OpenPrescribing
Cochlear implant codes SNOMED CT
Taken from the `COCIMPATRISK1_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/).
Cochlear implant removal codes SNOMED CT
Taken from the `COCIMPREMATRISK1_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/).
Cockcroft Gault - Estimated glomerular filtration rate codes SNOMED CT
Taken from the `CGEGFR_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/).
Cockcroft Gault - Estimated glomerular filtration rate codes (obsolete) SNOMED CT
Taken from the `CGEGFR_COD` refset published by NHSD.
Code for cancer care review SNOMED CT
Taken from the `MDRV_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/).
Code for ex-smoker SNOMED CT
Taken from the `EXSMOK_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/).
Code for maximal anticonvulsant therapy SNOMED CT
Taken from the `MAXEP_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/).
Code for never smoked SNOMED CT
Taken from the `NSMOK_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/).