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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Codes relating to recordings of flash glucose monitoring declined SNOMED CT

Taken from the FLASHGMDEC_COD refset published by NHSD.

Codes relating to recordings of flash glucose monitoring stopped SNOMED CT

Taken from the FLASHGMSTOP_COD refset published by NHSD.

Codes relating to recordings of provisions of flash glucose monitoring systems SNOMED CT

Taken from the FLASHGMPROV_COD refset published by NHSD.

Codes relating to recordings of referrals for continuous glucose monitoring SNOMED CT

Taken from the CGMREF_COD refset published by NHSD.

Codes relating to recordings of referrals for flash glucose monitoring SNOMED CT

Taken from the FLASHGMREF_COD refset published by NHSD.

Codes required for COVID-19 pandemic planning and research to be returned from the last 2 years SNOMED CT

Taken from the GDPPR2YR_COD refset published by NHSD.

Codes required for COVID-19 pandemic planning and research to be returned with no time limit SNOMED CT

Taken from the GDPPR_COD refset published by NHSD.

Codes required for COVID-19 pandemic planning and research, not included within associated clusters from other services, to be returned with no time limit SNOMED CT

Taken from the GDPPRMISC_COD refset published by NHSD.

The following codes were provided in the source file for the 20241205 version but were omitted from the version presented here:

  • 16649411000001104: Prevenar 13 vaccine suspension for injection 0.5ml pre-filled syringes (Wyeth Pharmaceuticals) (product)
  • 39566211000001103: Supemtek Quadrivalent vaccine (recombinant) solution for injection 0.5ml pre-filled syringes (Sanofi) (product)
  • 40085311000001103: Adjuvanted quadrivalent influenza vaccine (surface antigen, inactivated) suspension for injection 0.5ml pre-filled syringes (Seqirus UK Ltd) (product)
Codes that describe the patients alcohol usage SNOMED CT

Taken from the ALCUSAGE_COD refset published by NHSD.

Codes that indicate complete removal of the cervix SNOMED CT

Taken from the NOCX_COD refset published by NHSD.

Codes that indicate operations on the uterus that result in inability to conceive SNOMED CT

Taken from the HYST2_COD refset published by NHSD.

Coeliac disease codes SNOMED CT

Taken from the COELIAC_COD refset published by NHSD.

Colorectal cancer screening codes SNOMED CT

Taken from the COLCANSCR_COD refset published by NHSD.

Combination blood pressure medication dm+d

The following codelist contains products with more than one ingredient for the treatment of blood pressure from the cardiovascular chapter of BNF codes.

Published by OpenSAFELY
Complement disorder codes SNOMED CT

Taken from the COMPLEMENTDIS_COD refset published by NHSD.