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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Gamma-glutamyl transferase test results codes SNOMED CT
Taken from the `GGT_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/).
Gamma-glutamyl transferase test results codes (obsolete) SNOMED CT
Taken from the `GGT_COD` refset published by NHSD.
Gastro oesophageal reflux disease (GORD) diagnosis codes SNOMED CT
Taken from the `GORD_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/).
Gastrointestinal bleeding ICD-10 ICD-10
Codes to define gastrointestinal bleeding in ONS death data.
Published by OpenSAFELY
Gastroprotective drugs dm+d
Taken from the `ULCERHEALDRUG_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
Generic ciclosporin and tacrolimus BNF
Used by the following [OpenPrescribing](https://openprescribing.net) measures:

* [Ciclosporin and tacrolimus oral preparations prescribed generically](https://openprescribing.net/measure/ciclosporin/)
Published by OpenPrescribing
Generic diltiazem BNF
Used by the following [OpenPrescribing](https://openprescribing.net) measures:

* [Diltiazem preparations (>60mg) prescribed generically](https://openprescribing.net/measure/diltiazem/)
Published by OpenPrescribing
Generic salbutamol DPI inhalers dm+d
Taken from the `GENSALBDPINHDRUG_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
Generic salbutamol MDI inhalers dm+d
Taken from the `GENSALBMDIINHDRUG_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
Genetic syndrome related diabetes codes SNOMED CT
Taken from the `GENETSYNDM_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/).
Genetically proven familial hypercholesterolaemia codes SNOMED CT
Taken from the `FHYPGEN_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/).
Gestational Diabetes SNOMED CT
Taken from the `GDIAB_COD` fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3
Gestational Diabetes Codes SNOMED CT
Taken from the `GESTDIAB_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/).
Giant Cell Arteritis CTV3
Codes indicating a diagnosis of Temporal Arteritis or Giant Cell Arteritis
Published by OpenSAFELY
Giant Cell Arteritis (GCA) codes SNOMED CT
Taken from the `GCA_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/).