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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Mechanical or Artificial Valves SNOMED CT
Published by OpenSAFELY
Mechanical prosthetic valve replacement codes SNOMED CT
Taken from the `MECHVALVREP_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/).
Medication Review - OpenSAFELY Service Restoration Observatory SNOMED CT
Published by OpenSAFELY
Medication checked codes SNOMED CT
Taken from the `MEDCHK_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/).
Medication review codes SNOMED CT
Taken from the `MEDRVW_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/).
Medication reviews - all types SNOMED CT
This codelist is designed to be a sensitive codelist to identify a broad range of medication reviews being undertaken.
Published by OpenSAFELY
Melatonin drugs (LDO) dm+d
Taken from the `MELATONINDRUG_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
Men B vaccination contraindicated codes SNOMED CT
Taken from the `MENBVACCON_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/).
Men B vaccine drug codes dm+d
Taken from the `MENBVACDRUG_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
MenACWY GP vaccination codes SNOMED CT
Taken from the `MENACWYGP_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/).
MenACWY other healthcare provider vaccination codes SNOMED CT
Taken from the `MENACWYOHP_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/).
MenACWY vaccine codes dm+d
Taken from the `MENACWYDRUG_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
Mental and behavioural disorders CTV3
Mental health exception codes SNOMED CT
Taken from the `MHEXC_COD` refset published by NHSD.
Mercaptopurine BNF
Published by OpenSAFELY