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.

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Hydroxychloroquine dm+d
This is a list of [NHS dictionary of medicines and devices](https://ebmdatalab.net/what-is-the-dmd-the-nhs-dictionary-of-medicines-and-devices/) items for oral hydroxychloroquine.
Published by OpenSAFELY
Hyoscine butylbromide - subcutaneous formulations dm+d
This codelist contains all subcutaneous formulations of hyoscine butylbromide.
Published by OpenSAFELY
Hyoscine hydrobromide subcutaneous dm+d
This code list contains hyoscine hydrobromide formulations which may be given subcutaneously.
Published by OpenSAFELY
Hypercalcemia SNOMED SNOMED CT
Hyperparathyroidism SNOMED CT
This codelist aims to identify patients who have hyperparathyroidism.
Published by OpenSAFELY
Hypertension CTV3
Code indicative of a hypertension diagnosis
Published by OpenSAFELY
Hypertension (ICD10) ICD-10
Hypertension in secondary care - excludes gestational hypertension
Published by REDUCEHF
Hypertension (SNOMED) SNOMED CT
Automatically-generated equivalent of [Hypertension](/codelist/opensafely/hypertension/)
Published by OpenSAFELY
Hypertension diagnosis codes SNOMED CT
Taken from the `HYP_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/).
Hypertension resolved codes SNOMED CT
Taken from the `HYPRES_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/).
Hypertriglyceridemia SNOMED SNOMED CT
Hypopituitary disorder codes SNOMED CT
Taken from the `HYPOPITUITARY_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/).
Hypothyroidism diagnosis codes SNOMED CT
Taken from the `THY_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/).
Hypothyroidism exception codes SNOMED CT
Taken from the `THYEXC_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/).
Hypothyroidism treatment codes dm+d
Taken from the `THYR_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