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 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 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 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-related drug treatment codes dm+d

The ASTTRT_COD cluster from v46 QOF business rules for the Asthma clinical domain. The codes were extracted from the SNOMED CT browser using the SNOMED code 12463601000001108, which defines the reference set.

Published by OpenSAFELY
Astra Zeneca booster medication code dm+d

Taken from the AZB1RX_COD field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Astra Zeneca vaccination medication code dm+d

Taken from the AZD1/2RX_COD fields in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Atopic dermatitis CTV3
Published by OpenSAFELY
Atrial fibrillation - Clinical finding CTV3

The following codes are used to indicate a clinical finding of Atrial fibrillation.

Published by OpenSAFELY
Atrial fibrillation exception reporting CTV3

The following codes are used to indicate Atrial fibrillation exception reporting

Published by OpenSAFELY
Atrial fibrillation or flutter CTV3

Codes for a history of atrial fibrillation or atrial flutter

Published by OpenSAFELY
Atrial fibrillation quality indicator care unsuitable for patient CTV3

The following codes are used to indicate Atrial fibrillation quality indicator care unsuitable for patient

Published by OpenSAFELY
Atrial fibrillation resolved CTV3

The following codes are used to indicate Atrial fibrillation resolved

Published by OpenSAFELY
Atrial fibrillation: Patient has chosen not to receive atrial fibrillation quality indicator care CTV3

The following codes are used to indicate Atrial fibrillation: Patient has chosen not to receive atrial fibrillation quality indicator care

Published by OpenSAFELY
Azathioprine BNF

BNF codelists for azathioprine.

Published by OpenSAFELY