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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Methotrexate (oral) dm+d
dm+d codelist for oral methotrexate
Published by OpenSAFELY
Methotrexate - injectable dm+d
dm+d codelist for injectable methotrexate
Published by OpenSAFELY
Methotrexate - oral BNF
[BNF codelist](https://www.thedatalab.org/blog/161/prescribing-data-bnf-codes/) for oral methotrexate.
Published by OpenSAFELY
Methotrexate 10mg BNF
Used by the following [OpenPrescribing](https://openprescribing.net) measures:

* [Methotrexate 10 mg tablets ](https://openprescribing.net/measure/methotrexate/)
Published by OpenPrescribing
Methotrexate 2.5mg and 10mg BNF
Used by the following [OpenPrescribing](https://openprescribing.net) measures:

* [Methotrexate 10 mg tablets ](https://openprescribing.net/measure/methotrexate/)
Published by OpenPrescribing
Methotrexate Rx dm+d
Taken from the `MET_COD` field in the National PINCER Data Specification, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
Published by PINCER
Methotrexate medication codes dm+d
Taken from the `METHOTREXDRUG_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
Methylphenidate BNF
pseudoBNF codelist for methylphenidate
Published by OpenSAFELY
Methylphenidate - dmd dm+d
dm+d codelist for methylphenidate
Published by OpenSAFELY
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
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/).