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.
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Below, you'll find all the codelists we have used in OpenSAFELY research to date.
- ACE Inhibitor Medications dm+d
The codelist contains medicines that are ACE Inhibitors from the RAS section of BNF codes.
- Absence of Appendix CTV3
Codes that indicate an absence of an appendix, either as a clinical finding or due to appendicectomy
- Acute Appendicitis CTV3
Codes that indicate an episode of acute appendicitis
- Acute transverse myelitis ICD-10 ICD-10
Acute transverse myelitis ICD-10 codelist for use with hospital and mortality data
Codelist aims to be specific rather than sensitive, and to describe acute transverse myelitis occuring on its own rather than myelitis as part of a broader disease process such as encephalomyelitis or ADEM. Does not include codes which are not specific to acute transverse myelitis, e.g. such as 'Encephalitis, myelitis and encephalomyelitis'.
- Addisons & hypoadrenalism SNOMED CT
Taken from the
ADDIS_CODfields in SARS-CoV2 (COVID-19) Vaccine Uptake Reporting Codes v.1.5.3Published by PRIMIS Covid Vaccination Uptake Reporting
- Adrenaline Pens dm+d
This list contains dm+d entries for adrenaline auto-injectors, commonly know as pens, which are used by people when they experience an emergency allergic reaction.
- Adrenaline auto-injectors BNF
- Alanine aminotransferase (ALT) tests SNOMED CT
This codelist was developed to identify patients receiving a alanine transferaminase test, as an indicator of a liver function test.
- Alanine aminotransferase (ALT) tests (numerical value) SNOMED CT
This codelist was developed to identify patients receiving a alanine tranfseraminase test, as an indicator of a liver function test, where a numerical value is recorded.
- Alfentanil subcutaneous dm+d dm+d
This code list contains alfentanil formulations which may be given subcutaneously.
- All BMI coded terms SNOMED CT
Taken from the
BMI_STAGEfield in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1.2, published by PRIMIS.
© PRIMIS - the University of Nottingham 2021Published by PRIMIS Covid Vaccination Uptake Reporting
- Alpha-Adrenoceptor Blocking Drugs dm+d
- Amputation CTV3
Codelist for defining the presence of a history of amputation
- Amputation OPCS-4 procedure codes OPCS-4
OPCS-4 codes to identify amputations following orthopaedic surgery
- Amputation of lower limb CTV3
This captures amputation of the lower limb for the risk prediction project. Other studies requiring amputation codes should refer to the full codelist, under 'Amputation'.