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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Body mass index (BMI) underweight codes SNOMED CT
Taken from the `BMIUNDER_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/).
Bone Density Scan SNOMED CT
Codes which relate to the arrangement, completion, or result of a bone density scan.
Published by OpenSAFELY
Bone Marrow Transplant CTV3
Codes indicating a bone marrow transplant has been carried out
Published by OpenSAFELY
Bone Marrow Transplant (SNOMED) SNOMED CT
Automatically-generated equivalent of [Bone Marrow Transplant](/codelist/opensafely/bone-marrow-transplant/)
Published by OpenSAFELY
Bone sparing agent drug codes dm+d
Taken from the `BSADRUG_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
Bone sparing therapy codes SNOMED CT
Taken from the `BSA_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/).
Booster DTaP/IPV vaccination codes SNOMED CT
Taken from the `DTAPIPVVACBOOST_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/).
Booster Men B vaccination codes SNOMED CT
Taken from the `MENBVACBOOST_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/).
Booster Men B vaccination codes by another healthcare provider SNOMED CT
Taken from the `MENBVACOHPBOOST_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/).
Born in the UK or Crown Dependencies SNOMED CT
This codelist aims to indicate if an individual was born in one of the UK countries (England, Wales, Scotland or Northern Ireland) or the Crown Dependencies (Isle of Man, Jersey and Guernsey). This codelist will be used in conjunction with other migration codelists in order to create a migration status variable in a short data report describing the quality of migration recording in primary care data within the OpenSAFELY platform.
Published by OpenSAFELY
Born outside the UK SNOMED CT
This is a codelist of all SNOMED CT codes indicating a country of birth that is not the UK or its devolved nations (Scotland, Wales or Northern Ireland) or Crown Dependencies (Isle of Man, Jersey or Guernsey), which will be used to create a cohort of potential migrants within the OpenSAFELY platform.
Published by OpenSAFELY
Bowel cancer screening evidenced results (firm results) codes SNOMED CT
Taken from the `COLCANSCREV_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/).
Bowel cancer screening evidenced results (firm results) codes (obsolete) SNOMED CT
Taken from the `COLCANSCREV_COD` refset published by NHSD.
Brain cancer diagnosis codes SNOMED CT
Taken from the `BRAINCAN_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/).
Branded desogestrel BNF
Used by the following [OpenPrescribing](https://openprescribing.net) measures:

* [Desogestrel prescribed as a branded product](https://openprescribing.net/measure/desogestrel/)
Published by OpenPrescribing