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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Transplant codes SNOMED CT

Taken from the C19TRANSP_COD refset published by NHSD.

Transverse Myelitis CTV3

Codes that indicate an episode of transverse myelitis

Published by OpenSAFELY
Tricyclic and related antidepressants DM&D dm+d

This code list contains codes from the NHS dictionary of medicines and devices (dm+d) that are known as Tricyclic Antidepressants. All formulations of these medicines have been included, except for those that are presented in a combined formulation with other drugs. All tricyclic antidepressants are licensed for the treatment of depression and some of them are licensed for the treatment of anxiety disorders. Certain tricyclic antidepressants are licensed for unusual psychiatric conditions e.g. clomipramine for cataplexy associated with narcolepsy. Some are also licensed for non-psychiatric indications, including migraine, neuropathic pain, headache.

Published by OpenSAFELY
Triglyceride test result codes SNOMED CT

Taken from the TRIGLYC_COD refset published by NHSD.

Triglycerides SNOMED CT

...

Published by Ardens
Type 1 Diabetes CTV3

Codes explicitly indicating Type 1 Diabetes

Published by OpenSAFELY
Type 1 diabetes (secondary care) ICD-10

Codes explicity indicating Type 1 Diabetes (secondary care)

Published by OpenSAFELY
Type 2 Diabetes CTV3

Codes explicitly indicating Type 2 Diabetes

Published by OpenSAFELY
URTI 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

URTI (SNOMED) SNOMED CT

URTI codes derived by Hannah Whittaker (Imperial College London) and reviewed by Jenni Quint (Imperial College London) for CONVALESENCE Long Covid EHR project

Ulcer healing drugs: PPI & H2 blockers Rx dm+d

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

© PRIMIS - the University of Nottingham 2021

Published by PINCER
Ulcerative colitis CTV3
Published by OpenSAFELY
Ulipristal acetate 5mg BNF
Published by OpenPrescribing
Unspecified dementia (ICD10) V1.3 ICD-10
Unspecified dementia (SNOMED-CT) V1.3 SNOMED CT