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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ICD-10 Chapter XII ICD-10
Published by OpenSAFELY
ICD-10 Chapter XIII ICD-10
Published by OpenSAFELY
ICD-10 Chapter XIV ICD-10
Published by OpenSAFELY
ICD-10 Chapter XIX ICD-10
Published by OpenSAFELY
ICD-10 Chapter XV ICD-10
Published by OpenSAFELY
ICD-10 Chapter XVI ICD-10
Published by OpenSAFELY
ICD-10 Chapter XVII ICD-10
Published by OpenSAFELY
ICD-10 Chapter XVIII ICD-10
Published by OpenSAFELY
ICD-10 Chapter XX ICD-10
Published by OpenSAFELY
ICD-10 Chapter XXI ICD-10
Published by OpenSAFELY
ICD-10 Chapter XXII ICD-10
Published by OpenSAFELY
IFCC HbA1c monitoring and diagnostic range codes SNOMED CT
Taken from the `IFCCHBAMD_COD` refset published by NHSD.
IFCC HbA1c monitoring range codes SNOMED CT
Taken from the `IFCCHBAM_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/).
ILD (SNOMED) SNOMED CT
ILD (pulmonary fibrosis) codes derived by Hannah Whittaker (Imperial College London) and reviewed by Jenni Quint (Imperial College London) for CONVALESENCE Long Covid EHR project
INR Time in therapeutic range codes SNOMED CT
Taken from the `TTR_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/).