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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historic self-harm codes SNOMED CT
historic serious mental illness diagnosis codes SNOMED CT
hypertension Read V2
Published by QMUL Multimorbidity
incident heart failure CTV3
Published by OpenSAFELY
incident-venous-thromboembolic-disease CTV3
Codes to define incident cases of venous thromboemolic disease.
Published by OpenSAFELY
insect bites-and-related-conditions-administration-codes-for-pharmacy-first SNOMED CT
Codes that a GP could use to record infected insect bites
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.

Published by QCovid
migration status codes SNOMED CT
Codelist to identify people who are migrants.
Published by OpenSAFELY
mood disorder SNOMED CT
multi_sclerosis Read V2
Published by QMUL Multimorbidity
multimorbidity_prescription_analgesics_opiods_exc_migraine_bnf BNF
This prescription codelist is one of many used for the Cambridge Multimorbidity Score (CMS), Payne et al., 2018.
It captures primary care prescription-only medicine analgesics, excl. migraine meds.
This is 1 of 3 codelists needed to define "painful condition":
- Prescription of ≥4 prescription-only medicine analgesics, excl. migraine meds in the past 12 months.