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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Monogenic diabetes or maturity onset diabetes of the young codes SNOMED CT
Taken from the `MODYDM_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/).
Morphine 120mg or greater equivalence opioid drugs dm+d
Taken from the `VSTRONGOPIOIDDRUG_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
Morphine subcutaneous dm+d dm+d
User Requirements This codelist aims to identify morphine being used in the context of palliative care. This list covers formulations of morphine that could be given subcutaneously.
Published by OpenSAFELY
Motor Neurone Disease (ICD-10) ICD-10
Taken from the Motor Neurone Disease tab of the Population Risk COVID-19 Treatments code list v1.3, published by NHS Digital, 2021-12-13.
Published by NHS Digital
Motor Neurone Disease (SNOMED CT) SNOMED CT
Taken from the Motor Neurone Disease tab of the Population Risk COVID-19 Treatments code list v1.3, published by NHS Digital, 2021-12-13.
Published by NHS Digital
Motor neurone disease (ICD10) V1.3 ICD-10
Motor neurone disease (SNOMED-CT) V1.3 SNOMED CT
Motor neurone disease codes SNOMED CT
Taken from the `MND_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/).
Moving to new residence and other non-care home living status codes SNOMED CT
Taken from the `MOVNEWRES_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/).
Moving to new residence and other non-care home living status codes (obsolete) SNOMED CT
Taken from the `MOVNEWRES_COD` refset published by NHSD.
Multicentric reticulohistiocytosis (MRH) codes SNOMED CT
Taken from the `RETICHISTIOCYTOSIS_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/).
Multidisciplinary meeting codes SNOMED CT
Taken from the `MDTMEET_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/).
Multimorbidity_COPD SNOMED CT
Multimorbidity_alcoholproblems SNOMED CT
Multimorbidity_anxiety/depression SNOMED CT