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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Metronidazole, tinidazole and ornidazole (antibacterials) dm+d
Metronidazole, tinidazole and ornidazole codelist extracted from antibacterials codelist (https://www.opencodelists.org/codelist/opensafely/antibacterials/27089eaa/)
Published by UKHSA
Midazolam BNF
Midazolam that is generally prescribed at the end of life.
Published by OpenSAFELY
Midazolam - end of life dm+d
dm+d codelist for midazolam injections used at the end of life.
Published by OpenSAFELY
Migraine (ICD10) V1.3 ICD-10
Migraine (SNOMED-CT) V1.3 SNOMED CT
Migrant SNOMED CT
This is a codelist of all migration-related SNOMED-CT codes that will be used create a cohort of potential migrants within the OpenSAFELY platform. The codelist captures a range of migration-related characteristics such as a non-UK country of birth, an immigration legal status, a non-English first or main language or the need for an interpreter amongst others.
Published by OpenSAFELY
Mild Cognitive Impairment codes SNOMED CT
Taken from the `MCI_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/).
Mild and intermittent asthma diagnosis codes SNOMED CT
Taken from the `MILDINTAST_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/).
Mild frailty diagnosis codes SNOMED CT
Taken from the `MILDFRAIL_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/).
Mineralocorticoid receptor antagonist drug codes dm+d
Taken from the `MRADRUG_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
Minocycline (tetracyclines) dm+d
Minocycline codelist extracted from tetracyclines codelist
Published by UKHSA
Mitochondrial disease codes SNOMED CT
Taken from the `MITOCHOND_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/).
Mixed (biphasic) insulin - dmd dm+d
This codelist contains NHS Dictionary of Medicines and Devices (dm+d) codes for all biphasic insulin preparations.
Published by OpenSAFELY
Mixed - Any other mixed background Ethnicity SNOMED CT
Taken from the `ETH2001_MXDOTHER_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
Mixed - Any other mixed background Ethnicity SNOMED CT
Taken from the `ETH2001_MXDOTHER_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1.2, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021