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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Cefalexin (oral) dm+d
This codelist contains cefalexin formulations which may be given orally.
Published by OpenSAFELY
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.
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/).
Chemotherapy or Radiotherapy CTV3
Codes indicating chemotherapy or radiotherapy or both has been carried out
Published by OpenSAFELY
Chemotherapy or Radiotherapy (SNOMED) SNOMED CT
Automatically-generated equivalent of [Chemotherapy or Radiotherapy](/codelist/opensafely/chemotherapy-or-radiotherapy/)
Published by OpenSAFELY
Chemotherapy or Radiotherapy (updated) CTV3
An updated version of https://codelists.opensafely.org/codelist/opensafely/chemotherapy-or-radiotherapy/, with truncated codes fixed.
Published by OpenSAFELY
Chemotherapy systemic medication codes dm+d
Taken from the `CHEMODRUG_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