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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Type 1 Diabetes CTV3
Codes explicitly indicating Type 1 Diabetes
Published by OpenSAFELY
Type 1 diabetes (secondary care) ICD-10
Codes explicity indicating Type 1 Diabetes (secondary care)
Published by OpenSAFELY
Type 2 Diabetes CTV3
Codes explicitly indicating Type 2 Diabetes
Published by OpenSAFELY
Type 2 diabetes in the young review codes SNOMED CT
Taken from the `DM2YNGRVW_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/).
Type 2 diabetes in the young review offered codes SNOMED CT
Taken from the `DM2YNGRVWOFF_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/).
URTI SNOMED CT
Asthma exacerbations codes derived by Hannah Whittaker (Imperial College London) and reviewed by Jenni Quint (Imperial College London) for CONVALESENCE Long Covid EHR project
URTI (SNOMED) SNOMED CT
URTI codes derived by Hannah Whittaker (Imperial College London) and reviewed by Jenni Quint (Imperial College London) for CONVALESENCE Long Covid EHR project
Ulcer healing drugs: PPI & H2 blockers Rx dm+d
Taken from the `PPI_COD` field in the National PINCER Data Specification, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
Published by PINCER
Ulcerative colitis CTV3
Published by OpenSAFELY
Ulcerative colitis (UC) codes SNOMED CT
Taken from the `ULCCOLITIS_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/).
Ulipristal acetate 5mg BNF
Used by the following [OpenPrescribing](https://openprescribing.net) measures:

* [Ulipristal acetate 5mg prescribing for uterine fibroids](https://openprescribing.net/measure/ulipristal/)
Published by OpenPrescribing
Unpaid carer codes SNOMED CT
Taken from the `UNPAIDCARER_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/).
Unspecified dementia (ICD10) V1.3 ICD-10
Unspecified dementia (SNOMED-CT) V1.3 SNOMED CT
Upper gastrointestinal (GI) bleed codes SNOMED CT
Taken from the `UPGIBLEED_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/).