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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Black or Black British - Any other Black background Ethnicity SNOMED CT

Taken from the ETH2001_BLKOTH_COD field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Black or Black British - Caribbean Ethnicity SNOMED CT

Taken from the ETH2001_BLKCARIB_COD field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021

Bone Marrow Transplant CTV3

Codes indicating a bone marrow transplant has been carried out

Published by OpenSAFELY
Bone Marrow Transplant (SNOMED) SNOMED CT

Automatically-generated equivalent of Bone Marrow Transplant

Published by OpenSAFELY
CKD codes-stages 3 to 5 SNOMED CT

Taken from the CKD35_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

CKD stages 1 to 5 codes SNOMED CT

Taken from the CKD15_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3

COPD - secondary care ICD-10

Identifies COPD hospital admissions.

Published by OpenSAFELY
COPD Infection CTV3

Codes indicating a diagnosis of COPD exacerbation or a LRTI infection

Published by OpenSAFELY
COPD Rescue Packs and Annual Reviews CTV3

Code indicating an annual review of COPD or the provision of a rescue pack for COPD exacerbations

Published by OpenSAFELY
COPD exacerbation secondary care ICD-10

Identifies COPD exacerbation hospital admissions.

Published by OpenSAFELY
COVID Identification ICD-10

The following two ICD-10 codes for COVID identification have been used

U07.1 virus identified Use this code when COVID-19 has been confirmed by laboratory testing irrespective of severity of clinical signs or symptoms. Use additional code, if desired, to identify pneumonia or other manifestations.

U07.2 COVID-19, virus not identified Use this code when COVID-19 is diagnosed clinically or epidemiologically but laboratory testing is inconclusive or not available. Use additional code, if desired, to identify pneumonia or other manifestations

Published by OpenSAFELY
COVID Identification in primary care (helper) - 111 suspected CTV3

Helper file for COVID identifcation in primary care - suspect case. Used to identify which of the suspect codes in the COVID identification in primary care file is used by 111 for recording a suspect case.

Published by OpenSAFELY
COVID Identification in primary care (helper) - Pillar 2 onwards CTV3

Helper file for COVID identifcation in primary care relating to the case, negative test, potential historic case and historic case codelists. Can be used to identify which of the codes in these codelists have been used by Pillar 2 testing (and later Pillars).

Published by OpenSAFELY
COVID Identification in primary care - exposure to disease CTV3

Codes indicating exposure to COVID-19 (1 of 13 possible types of CTV3 codes that contain information related to COVID-19)

Published by OpenSAFELY
COVID booster admin code (earliest) SNOMED CT

Taken from the E_BOOST_COD fields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3