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 we have used in OpenSAFELY research to date.

All codelists


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Asthma day symptom codes SNOMED CT

Taken from the RCPDSYMP_COD refset published by NHSD.

Asthma diagnosis codes SNOMED CT

Taken from the AST_COD refset published by NHSD.

Asthma diagnosis codes SNOMED CT

The AST_COD cluster in the asthma reference set taken from the Primary Care Domain Reference Set Portal, published by NHS Digital on 2021-12-21.

Published by OpenSAFELY
Asthma dm+d asthma systemic steroid codes dm+d

Taken from the ASTRX2 fields in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1.5.3, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Asthma emergency admission codes SNOMED CT

Taken from the ASTADMSN_COD refset published by NHSD.

Asthma exacerbation - secondary care ICD-10

ICD-10 codes to identify admissions for asthma, where the codes should be used to identify the primary reason for admission.

Published by OpenSAFELY
Asthma exacerbations SNOMED CT

Asthma exacerbations codes derived by Hannah Whittaker (Imperial College London) and reviewed by Jenni Quint (Imperial College London) for CONVALESENCE Long Covid EHR project

Asthma exacerbations (SNOMED) SNOMED CT

Asthma exacerbations codes derived by Hannah Whittaker (Imperial College London) and reviewed by Jenni Quint (Imperial College London) for CONVALESENCE Long Covid EHR project

Asthma exercise codes SNOMED CT

Taken from the RCPEXCER_COD refset published by NHSD.

Asthma inhaler or nebuliser codes dm+d

Taken from the ASTRXM1_COD field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Asthma medications (BNF) BNF

Asthma medication codes derived by Hannah Whittaker (Imperial College London) and reviewed by Jenni Quint (Imperial College London) for CONVALESENCE Long Covid EHR project

Asthma quality indicator service unavailable codes SNOMED CT

Taken from the ASTPCASU_COD refset published by NHSD.

Asthma resolved codes SNOMED CT

Taken from the ASTRES_COD refset published by NHSD.

Asthma review codes SNOMED CT

Taken from the REV_COD refset published by NHSD.

Asthma sleep codes SNOMED CT

Taken from the RCPSLP_COD refset published by NHSD.