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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incident heart failure CTV3
Published by OpenSAFELY
incident-venous-thromboembolic-disease CTV3

Codes to define incident cases of venous thromboemolic disease.

Published by OpenSAFELY
intellec_disability Read V2
Published by QMUL Multimorbidity
is_prescribed_immunosuppressants dm+d

DM+D codelist for the is_prescribed_immunosuppressants group in the QCovid® to develop the COVID-19 Population Risk Assessment.

Published by QCovid
is_prescribed_oral_steroids dm+d

DM+D codelist for the is_prescribed_oral_steroids group in the QCovid® to develop the COVID-19 Population Risk Assessment.

Published by QCovid
is_taking_antileuko_or_laba dm+d

DM+D codelist for the is_taking_antileuko_or_laba group in the QCovid® to develop the COVID-19 Population Risk Assessment.

Published by QCovid
learning_disability SNOMED CT

SNOMED codelist for the learning_disability group in the QCovid® to develop the COVID-19 Population Risk Assessment.

Codelist also contains the following unrecognised codes:

  • 1089731000000100 | Profound intellectual development disorder with impairment of behaviour (disorder) |
  • 1089741000000100 | Severe intellectual development disorder without significant impairment of behaviour (disorder) |
  • 1089831000000100 | Mild intellectual development disorder without significant impairment of behaviour (disorder) |
  • 1093991000000100 | Mild intellectual development disorder with impairment of behaviour (disorder) |
  • 1094021000000100 | Intellectual development disorder with minimal impairment of behaviour (disorder) |
Published by QCovid
mood disorder SNOMED CT
multi_sclerosis Read V2
Published by QMUL Multimorbidity
oral NSAID Rx dm+d

Taken from the NSAID_COD field in the National PINCER Data Specification, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Published by PINCER
otitis media SNOMED CT

Codelist for otitis media (middle ear infection) that may be treated with antibiotics in primary care.

Published by UKHSA
parkinsons Read V2
Published by QMUL Multimorbidity
peptic ulceration SNOMED CT

Taken from the PEP_COD field in the National PINCER Data Specification, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Published by PINCER
perip_arterial_disease Read V2
Published by QMUL Multimorbidity
peripheral arterial disease CTV3

Codes that indicate incident or history of peripheral arterial disease.

This is used for calculating the CHAD2S2-VASc score.

Published by OpenSAFELY