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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Nutrition and diet assessment codes SNOMED CT
Taken from the `NUTRIASS_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/).
Nutrition and diet assessment declined codes SNOMED CT
Taken from the `NUTRIASSDEC_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/).
Obese (BMI 30+) SNOMED CT
Obesity (ICD10) ICD-10
Obesity as recorded in secondary care data
Published by REDUCEHF
Obstructive sleep apnoea SNOMED CT
This codelist aims to identify adult patients who have obstructive sleep apnoea.
Published by OpenSAFELY
Oedema SNOMED CT
Oedema symptom for diagnosing HF
Published by REDUCEHF
Oestradiol SNOMED CT
...
Published by Ardens
Oestrogen and oestrogen-like drugs dm+d
This codelist contains codes for oestrogen and oestrogen-like drugs that potentially increase the risk of thrombotic events.
Published by OpenSAFELY
Offered diabetes structured education programme codes SNOMED CT
Taken from the `NDASEPOFF_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/).
Online consultation codes for Pharmacy First SNOMED CT
To identify whether a consultation (by matching day) is online/ video
OpenPrescribing Measure: Antibiotic stewardship: prescribing of trimethoprim vs nitrofurantoin (denominator) BNF
Drugs used as the denominator of the [OpenPrescribing](https://openprescribing.net) measure: [Antibiotic stewardship: prescribing of trimethoprim vs nitrofurantoin](https://openprescribing.net/measure/trimethoprim/)
Published by OpenPrescribing
OpenPrescribing Measure: Antibiotic stewardship: prescribing of trimethoprim vs nitrofurantoin (denominator) dm+d
Drugs used as the denominator of the following [OpenPrescribing](https://openprescribing.net) measures:

* [Antibiotic stewardship: prescribing of trimethoprim vs nitrofurantoin](https://openprescribing.net/measure/trimethoprim/)
Published by OpenSAFELY
OpenPrescribing Measure: Antibiotic stewardship: prescribing of trimethoprim vs nitrofurantoin (numerator) BNF
Drugs used as the numerator of the following [OpenPrescribing](https://openprescribing.net) measures:

* [Antibiotic stewardship: prescribing of trimethoprim vs nitrofurantoin](https://openprescribing.net/measure/trimethoprim/)
Published by OpenPrescribing
OpenPrescribing Measure: Antibiotic stewardship: prescribing of trimethoprim vs nitrofurantoin (numerator) dm+d
Drugs used as the numerator of the following [OpenPrescribing](https://openprescribing.net) measures:

* [Antibiotic stewardship: prescribing of trimethoprim vs nitrofurantoin](https://openprescribing.net/measure/trimethoprim/)
Published by OpenSAFELY
OpenPrescribing Measure: Antibiotic stewardship: volume of antibiotic prescribing (numerator) BNF
Antibacterial drugs contained with BNF section 5.1, as used by OpenPrescribing "Antibiotic stewardship: volume of antibiotic prescribing (KTT9)" measure.
Published by OpenPrescribing