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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C-peptide test results codes SNOMED CT
Taken from the `CPEPTIDE_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/).
CKD stage SNOMED CT
Published by UK Renal Registry
CKD stage 5 (ICD-10) ICD-10
Taken from the CKD stage 5 tab of the Population Risk COVID-19 Treatments code list v1.3, published by NHS Digital, 2021-12-13.
Published by NHS Digital
CKD stage 5 (SNOMED CT) SNOMED CT
Taken from the CKD stage 5 tab of the Population Risk COVID-19 Treatments code list v1.3, published by NHS Digital, 2021-12-13.
Published by NHS Digital
CKD stage 5 codes SNOMED CT
Taken from the `CKD5_COD` refset published by NHSD.
COPD Read V2
Published by QMUL Multimorbidity
COPD ICD-10
This codelist is to identify chronic obstructive pulmonary disease (COPD). This is a combination of three existing code lists: 1) COPD diagnosis code (name: COPD - secondary care). 2) copd_icd10 by elsie_horne 3) COPD exacerbation specific code (COPD exacerbation codelist).
COPD - secondary care ICD-10
Identifies COPD hospital admissions.
Published by OpenSAFELY
COPD Infection CTV3
Codes indicating a diagnosis of COPD exacerbation or a LRTI infection
Published by OpenSAFELY
COPD Medications (New) BNF
Codelist created from existing list, https://www.opencodelists.org/codelist/bristol/copd-medications-bnf/4b00637c/#full-list, to solve issue with dm+d conversion
Published by OpenSAFELY
COPD Medications (New) - dmd dm+d
Codelist created from existing list, https://www.opencodelists.org/codelist/bristol/copd-medications-bnf/4b00637c/#full-list, to solve issue with dm+d conversion
Published by OpenSAFELY
COPD Rescue Packs and Annual Reviews CTV3
Code indicating an annual review of COPD or the provision of a rescue pack for COPD exacerbations
Published by OpenSAFELY
COPD exacerbation medications (BNF) BNF
COPD exacerbation medication codes derived by Hannah Whittaker (Imperial College London) and reviewed by Jenni Quint (Imperial College London) for CONVALESENCE Long Covid EHR project
COPD exacerbation secondary care ICD-10
Identifies COPD exacerbation hospital admissions.
Published by OpenSAFELY
COPD 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