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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RSV Identification (Primary Care) SNOMED CT
Codelist created to identify RSV in primary care with as much specificity as possible. For additional case identification in infants, the SNOMED code for Bronchiolitis (4120002) can be used to identify cases in emergency care (ECDS)
Published by OpenSAFELY
RSV Identification (Primary Care) - Maximal Sensitivity SNOMED CT
Codelist created to identify RSV in primary care with as much sensitivity as possible. For additional case identification in infants, the SNOMED codes for Bronchiolitis (4120002) and Viral Wheeze (276191000000107) can be used to identify cases in emergency care (ECDS).
Published by OpenSAFELY
RSV Identification (Secondary Care) ICD-10
Codelist created to identify RSV in secondary care with as much specificity as possible
Published by OpenSAFELY
Radiotherapy treatment codes SNOMED CT
Taken from the `RADIOTHERAP_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/).
Rare genetic metabolic and autoimmune disease codes SNOMED CT
Taken from the `C19RGMADIAG_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/).
Rare inherited anaemia codes SNOMED CT
Taken from the `RIA_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/).
Recombinant herpes zoster first vaccination codes SNOMED CT
Taken from the `SHVACGP1_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/).
Recombinant herpes zoster first vaccination codes (obsolete) SNOMED CT
Taken from the `SHVACGP1_COD` refset published by NHSD.
Recombinant herpes zoster second vaccination codes SNOMED CT
Taken from the `SHVACGP2_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/).
Recombinant herpes zoster second vaccination codes (obsolete) SNOMED CT
Taken from the `SHVACGP2_COD` refset published by NHSD.
Red blood cell (RBC) tests SNOMED CT
A SNOMED CT codelist for patients receiving monitoring of red blood cell (RBC) tests.
Published by OpenSAFELY
Red blood cell (RBC) tests (numerical value) SNOMED CT
A SNOMED CT codelist for patients receiving monitoring of red blood cell (RBC) tests with a numerical value
Published by OpenSAFELY
Reduced ejection fraction (heart failure) codes SNOMED CT
Taken from the `REDEJCFRAC_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/).
Referral and signposting for long COVID SNOMED CT
This codelists contains referral and signposting codes for "long COVID".
Published by OpenSAFELY
Referral for assessment for familial hypercholesterolemia codes SNOMED CT
Taken from the `FAMHYPREF_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/).