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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Carer codes SNOMED CT
Taken from the `CARER_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
Cefalexin dm+d
Cefalexin
Cefalexin (oral) dm+d
This codelist contains cefalexin formulations which may be given orally.
Published by OpenSAFELY
Centers for Disease Control and Prevention (CDC) Surgical Wound Classification SNOMED CT
Cephalosporins and other beta-lactams (antibacterials) dm+d
Cephalosporins and other beta-lactams codelist extracted from antibacterials codelist (https://www.opencodelists.org/codelist/opensafely/antibacterials/27089eaa/)
Published by UKHSA
Cerebral palsy CTV3
Codelist for people with a diagnosis of cerebral palsy
Published by OpenSAFELY
Cerebral palsy diagnosis codes SNOMED CT
Taken from the `CEREBRALP_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/).
Cerebrospinal fluid leak codes SNOMED CT
Taken from the `CSFLATRISK1_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/).
Cerebrospinal fluid shunt codes SNOMED CT
Taken from the `CSFSATRISK1_COD` refset published by NHSD.
Cerebrospinal fluid shunt removal codes SNOMED CT
Taken from the `CSFSREMATRISK1_COD` refset published by NHSD.
Cerebrovascular Disease SNOMED CT
This codelist aims to identify patients who have cerebrovascular disease (primarily affecting the cerebral or retinal circulation) where an atherosclerotic pathology exists.
Published by OpenSAFELY
Cervical cytology exception codes SNOMED CT
Taken from the `CYTEXC_COD` refset published by NHSD.
Cervical screening codes SNOMED CT
Taken from the `SMEAR_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/).
Change of medication codes SNOMED CT
Taken from the `CHNGMED_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/).
Chemotherapy non-drug concept codes SNOMED CT
Taken from the `CHEMO_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/).