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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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.

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 SNOMED CT

Taken from the TTR_COD refset published by NHSD.

INR result codes SNOMED CT

Taken from the INR_COD refset published by NHSD.

Ibuprofen - oral dm+d

A list of NHS dictionary of medicines and devices codes for oral Ibuprofen.

Published by OpenSAFELY
Illicit substance abuse codes SNOMED CT

Taken from the ILLSUB_COD refset published by NHSD.