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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Systolic blood pressure QoF SNOMED CT
A SNOMED CT codelist containing codes relating to systolic blood pressure (SBP) measurement.
Published by OpenSAFELY
Systolic blood pressure recording codes SNOMED CT
Taken from the `SYSBP_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/).
T-cell co-stimulation modulators systemic medication codes dm+d
Taken from the `TCELLDRUG_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
Tacrolimus systemic medication codes dm+d
Taken from the `TACROLIMUSDRUG_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
Takayasu’s arteritis codes SNOMED CT
Taken from the `TAKAYASUART_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/).
Tamoxifen BNF
Used by the following [OpenPrescribing](https://openprescribing.net) measures:

* [Prescribing of tamoxifen](https://openprescribing.net/measure/tamoxifen/)
Published by OpenPrescribing
Targeted proactive care needs assessment codes SNOMED CT
Taken from the `TPCNASS_COD` refset published by NHSD.
Temporary Immunosuppression CTV3
Codes indicating a diagnosis of a temporary immunosuppression.
Published by OpenSAFELY
Temporary Immunosuppression (SNOMED) SNOMED CT
Automatically-generated equivalent of [Temporary Immunosuppression](/codelist/opensafely/temporary-immunosuppression/)
Published by OpenSAFELY
Teratogenic medicines dm+d
In this codelist we aim to identify teratogenic drugs. A teratogen is a substance that can cause abnormalities or birth defects in a developing fetus.

The CQC routinely review the use of the following drugs, in female patients between the age of 8 and 55 years old Valproate Carbimazole Modafinil Pregabalin Topiramate.
Published by OpenSAFELY
Teriparatide dm+d
All products containing teriparatide.
Published by OpenSAFELY
Tetracycline (tetracyclines) dm+d
Tetracycline codelist extracted from tetracyclines codelist
Published by UKHSA
Tetracyclines (antibacterials) dm+d
Tetracyclines codelist extracted from antibacterials codelist (https://www.opencodelists.org/codelist/opensafely/antibacterials/27089eaa/)
Published by UKHSA
Thalassaemia codes SNOMED CT
Taken from the `THAL_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/).
Thiazide type diuretic medication dm+d
The codelist contains medicines that are thiazide diuretics from the ["thiazides and related diuretics" section of BNF codes](https://openprescribing.net/bnf/020201/).
Published by OpenSAFELY