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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Cholesterol (total) level SNOMED CT
...
Published by Ardens
Cholesterol codes without a value SNOMED CT
Taken from the `NONVALCHOL_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/).
Cholesterol codes without a value (obsolete) SNOMED CT
Taken from the `NONVALCHOL_COD` refset published by NHSD.
Cholesterol tests SNOMED CT
A SNOMED CT codelist describing primary care requests for total cholesterol.
Published by OpenSAFELY
Cholesterol tests (numerical value) SNOMED CT
A SNOMED CT codelist describing primary care requests for total cholesterol with a numerical value.
Published by OpenSAFELY
Chromosomal disorders affecting immune competence codes SNOMED CT
Taken from the `CHROMIMM_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/).
Chronic Cardiac Disease CTV3
Codes indicating a diagnosis of chronic heart disease, excluding simple VSD and AF
Published by OpenSAFELY
Chronic Cardiac Disease (SNOMED) SNOMED CT
Automatically-generated equivalent of [Chronic Cardiac Disease](/codelist/opensafely/chronic-cardiac-disease/)
Published by OpenSAFELY
Chronic Kidney Disease (SNOMED) SNOMED CT
IMPORTANT: This codelist is for Renal Replacement Therapy, *not* CKD but can't be renamed as it has been used in studies. If you are interested in CKD as a condition, please use one of the other existing codelists.

Automatically-generated equivalent of [Renal replacement therapy](https://www.opencodelists.org/codelist/opensafely/renal-replacement-therapy/2020-04-14/)
Published by OpenSAFELY
Chronic Liver Disease CTV3
Code indicating diagnosis of chronic liver disease
Published by OpenSAFELY
Chronic Liver Disease (SNOMED) SNOMED CT
Automatically-generated equivalent of [Chronic Liver Disease](/codelist/opensafely/chronic-liver-disease/)
Published by OpenSAFELY
Chronic Liver disease codes SNOMED CT
Taken from the `CLD_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
Chronic Liver disease codes SNOMED CT
Taken from the `CLD_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
Chronic Neurological Disease including Significant Learning Disorder SNOMED CT
Taken from the `CNS_COV_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021
Chronic Neurological Disease including Significant Learning Disorder SNOMED CT
Taken from the `CNS_COV_COD` field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021