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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Icosapent ethyl not indicated codes SNOMED CT

Taken from the ICOSAETHYLNIND_COD refset published by NHSD.

Idiopathic membranous glomerulonephritis codes SNOMED CT

Taken from the IDIOMEMBGN_COD refset published by NHSD.

Illicit substance abuse codes SNOMED CT

Taken from the ILLSUB_COD refset published by NHSD.

Illicit substance abuse intervention and declined codes SNOMED CT

Taken from the ILLSUBINT_COD refset published by NHSD.

Immune thrombocytopenia (ITP) codes SNOMED CT

Taken from the ITP_COD refset published by NHSD.

Immunosuppresant Drugs (PRA) (SNOMED) SNOMED CT

Taken from the Immunosuppression (PRA) tab of the Population Risk COVID-19 Treatments code list v1.3, published by NHS Digital, 2021-12-13.

Published by NHS Digital
Immunosuppression admin codes SNOMED CT
Immunosuppression codes (expiring) SNOMED CT

Taken from the IMTEMP_COD refset published by NHSD.

Immunosuppression codes (persisting) SNOMED CT

Taken from the IMATRISK1_COD refset published by NHSD.

Immunosuppression diagnosis codes SNOMED CT

Taken from the IMMDX_COV_COD field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Immunosuppression diagnosis codes SNOMED CT

Taken from the IMMDX_COV_COD field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Immunosuppression due to HIV AIDS (ICD10) ICD-10

Taken from the HES tab of the Immunosuppression code set, published by NHS Digital in the 3rd primary dose cohort identification specification, 2021-10-01.

Published by NHS Digital
Immunosuppression due to HIV AIDS (SNOMED) SNOMED CT

Taken from the GPES tab of the Immunosuppression code set, published by NHS Digital in the 3rd primary dose cohort identification specification, 2021-10-01.

Published by NHS Digital
Immunosuppression medication codes dm+d

Taken from the IMMRX_COD field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Immunosuppression procedure codes SNOMED CT

Taken from the IMTRTATRISK1_COD refset published by NHSD.